CLARK WILLIAM PINYAN MD
Prescription History 1871546721
Psychiatry & Neurology - Neurology in Clemmons, NC

Active since May 19, 2006PECOS EnrolledAccepts Medicare Assignment
98.3/100
CMS Quality Rating
2341 LEWISVILLE CLEMMONS RD, CLEMMONS, NC 27012(336) 716-4101 Get Directions

NPPES record last updated: March 11, 2015. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Medicare Part D Prescription History

Explore the verified Medicare Part D prescription history, volume metrics, and calculated drug costs for CLARK WILLIAM PINYAN MD, an active Neurology specialist practicing in Clemmons, NC. Our medical registry currently tracks 40 unique pharmaceutical formulations prescribed by this provider, representing an estimated volume of 1,300 documented patient claims. Among these therapy options, the most frequently utilized medication is Gabapentin, which accounts for 242 claims alone. Use the table below to sort by claims, cost, or utilization compared with the state average; select any medication for its full profile.

40
Medications
1,300
Total Claims
2,271
30-Day Fills
Gabapentin
Most Prescribed · 242 claims
View details
40 medications · 2024 Medicare Part D
Medicare Part D medications prescribed by CLARK WILLIAM PINYAN MD in 2024, with prescription volumes, average cost per fill, and NC state comparisons
Medication Prescriptions (2024)Rx (2024) Avg Cost per FillCost / Fill Vs. Other NC PrescribersVs. NC Avg

About Gabapentin: Gabapentin is used with other medications to prevent and control seizures. Show more ▾

It is also used to relieve nerve pain following shingles (a painful rash due to herpes zoster infection) in adults. Gabapentin is known as an anticonvulsant or antiepileptic drug. A cyclohexane-gamma-aminobutyric acid derivative that is used for the treatment of PARTIAL SEIZURES; NEURALGIA; and RESTLESS LEGS SYNDROME.

In 2024, this provider wrote 242 Medicare prescriptions for Gabapentin, about 2.4 times the volume of the typical North Carolina prescriber of this medication (99.7). Medicare paid an average of $22.09 per fill, versus $15.37 statewide.

How often this provider prescribes it

This provider
242
NC average
99.7

This provider prescribes this medication more often than the average NC prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$22.09
NC average
$15.37

Gross Part D cost per fill; not the patient's out-of-pocket price.

481.2
30-Day Fills
standardized to 30-day supplies
14,385
Days of Medication
total across all patients in 2024

About Clonazepam: Clonazepam is used to prevent and control seizures. Show more ▾

This medication is known as an anticonvulsant or antiepileptic drug. It is also used to treat panic attacks. Clonazepam works by calming your brain and nerves. It belongs to a class of drugs called benzodiazepines. An anticonvulsant used for several types of seizures, including myotonic or atonic seizures, photosensitive epilepsy, and absence seizures, although tolerance may develop. It is seldom effective in generalized tonic-clonic or partial seizures. The mechanism of action appears to involve the enhancement of GAMMA-AMINOBUTYRIC ACID receptor responses.

In 2024, this provider wrote 73 Medicare prescriptions for Clonazepam, about 1.4 times the volume of the typical North Carolina prescriber of this medication (52.9). Medicare paid an average of $9.93 per fill, versus $8.09 statewide.

How often this provider prescribes it

This provider
73
NC average
52.9

This provider prescribes this medication more often than the average NC prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$9.93
NC average
$8.09

Gross Part D cost per fill; not the patient's out-of-pocket price.

90
30-Day Fills
standardized to 30-day supplies
2,686
Days of Medication
total across all patients in 2024

About Donepezil Hcl: Donepezil is used to treat confusion (dementia) related to Alzheimer's disease. Show more ▾

It does not cure Alzheimer's disease, but it may improve memory, awareness, and the ability to function. This medication is an enzyme blocker that works by restoring the balance of natural substances (neurotransmitters) in the brain. An indan and piperidine derivative that acts as a selective and reversible inhibitor of ACETYLCHOLINESTERASE. Donepezil is highly selective for the central nervous system and is used in the management of mild to moderate DEMENTIA in ALZHEIMER DISEASE.

In 2024, this provider wrote 66 Medicare prescriptions for Donepezil Hcl, about 1.2 times the volume of the typical North Carolina prescriber of this medication (56.2). Medicare paid an average of $11.79 per fill, versus $12.43 statewide.

How often this provider prescribes it

This provider
66
NC average
56.2

This provider's prescribing volume for this medication is in line with the average NC prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$11.79
NC average
$12.43

This provider's average cost per fill is below the NC average for this medication.

183.3
30-Day Fills
standardized to 30-day supplies
5,476
Days of Medication
total across all patients in 2024

About Sumatriptan Succinate: Sumatriptan is used to treat migraines. Show more ▾

It helps to relieve headache, pain, and other migraine symptoms (including nausea, vomiting, sensitivity to light/sound). Prompt treatment helps you return to your normal routine and may decrease your need for other pain medications. Sumatriptan belongs to a class of drugs known as triptans. It affects a certain natural substance (serotonin) that causes narrowing of blood vessels in the brain. It may also relieve pain by affecting certain nerves in the brain. Sumatriptan does not prevent future migraines or lessen how often you get migraine attacks. A serotonin agonist that acts selectively at 5HT1 receptors. It is used in the treatment of MIGRAINE DISORDERS.

In 2024, this provider wrote 58 Medicare prescriptions for Sumatriptan Succinate, about 2.6 times the volume of the typical North Carolina prescriber of this medication (22.4). Medicare paid an average of $48.39 per fill, versus $20.83 statewide.

How often this provider prescribes it

This provider
58
NC average
22.4

This provider prescribes this medication more often than the average NC prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$48.39
NC average
$20.83

Gross Part D cost per fill; not the patient's out-of-pocket price.

66.2
30-Day Fills
standardized to 30-day supplies
1,799
Days of Medication
total across all patients in 2024

About Ropinirole Hcl: This medication is used alone or with other medications to treat Parkinson's disease. Show more ▾

It can improve your ability to move and decrease shakiness (tremor), stiffness, slowed movement, and unsteadiness. It may also decrease the number of episodes of not being able to move ("on-off syndrome"). Ropinirole is also used to treat restless legs syndrome (RLS). It may improve your sleep by decreasing the urge to move your legs and decreasing uncomfortable/unpleasant feelings in the legs. This medication works by helping to restore the balance of a certain natural substance (dopamine) in the brain.

In 2024, this provider wrote 50 Medicare prescriptions for Ropinirole Hcl, about 1.6 times the volume of the typical North Carolina prescriber of this medication (30.8). Medicare paid an average of $41.36 per fill, versus $15.56 statewide.

How often this provider prescribes it

This provider
50
NC average
30.8

This provider prescribes this medication more often than the average NC prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$41.36
NC average
$15.56

Gross Part D cost per fill; not the patient's out-of-pocket price.

119.3
30-Day Fills
standardized to 30-day supplies
3,547
Days of Medication
total across all patients in 2024

About Levetiracetam: Levetiracetam is used to treat seizures (epilepsy). Show more ▾

It belongs to a class of drugs known as anticonvulsants. Levetiracetam may decrease the number of seizures you have. A pyrrolidinone and acetamide derivative that is used primarily for the treatment of SEIZURES and some movement disorders, and as a nootropic agent.

In 2024, this provider wrote 49 Medicare prescriptions for Levetiracetam, about the same volume as the typical North Carolina prescriber of this medication (49.9). Medicare paid an average of $20.25 per fill, versus $29.22 statewide.

How often this provider prescribes it

This provider
49
NC average
49.9

This provider's prescribing volume for this medication is in line with the average NC prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$20.25
NC average
$29.22

This provider's average cost per fill is below the NC average for this medication.

84.5
30-Day Fills
standardized to 30-day supplies
2,513
Days of Medication
total across all patients in 2024

About Amitriptyline Hcl: This medication is used to treat depression. Show more ▾

Amitriptyline belongs to a class of drugs known as tricyclic antidepressants. It works by helping to restore the balance of certain natural substances in the brain. Tricyclic antidepressant with anticholinergic and sedative properties. It appears to prevent the re-uptake of norepinephrine and serotonin at nerve terminals, thus potentiating the action of these neurotransmitters. Amitriptyline also appears to antagonize cholinergic and alpha-1 adrenergic responses to bioactive amines.

In 2024, this provider wrote 49 Medicare prescriptions for Amitriptyline Hcl, about 1.8 times the volume of the typical North Carolina prescriber of this medication (27.4). Medicare paid an average of $18.18 per fill, versus $14.40 statewide.

How often this provider prescribes it

This provider
49
NC average
27.4

This provider prescribes this medication more often than the average NC prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$18.18
NC average
$14.40

Gross Part D cost per fill; not the patient's out-of-pocket price.

113
30-Day Fills
standardized to 30-day supplies
3,390
Days of Medication
total across all patients in 2024

About Topiramate: Topiramate is used alone or with other medications to prevent and control seizures (epilepsy). Show more ▾

This medication is also used to prevent migraine headaches and decrease how often you get them. Topiramate will not treat a migraine headache once it occurs. If you get a migraine headache, treat it as directed by your doctor (such as by taking pain medication, lying down in a dark room). Topiramate is known as an anticonvulsant or antiepileptic drug. A sulfamate-substituted fructose analog that was originally identified as a hypoglycemic agent. It is used for the treatment of EPILEPSY and MIGRAINE DISORDERS, and may also promote weight loss.

In 2024, this provider wrote 46 Medicare prescriptions for Topiramate, about 1.4 times the volume of the typical North Carolina prescriber of this medication (33.6). Medicare paid an average of $21.56 per fill, versus $10.16 statewide.

How often this provider prescribes it

This provider
46
NC average
33.6

This provider prescribes this medication more often than the average NC prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$21.56
NC average
$10.16

Gross Part D cost per fill; not the patient's out-of-pocket price.

118
30-Day Fills
standardized to 30-day supplies
3,495
Days of Medication
total across all patients in 2024

About Carbidopa-Levodopa: This combination medication is used to treat symptoms of Parkinson's disease or Parkinson-like symptoms (such as shakiness, stiffness, difficulty moving). Show more ▾

Parkinson's disease is thought to be caused by too little of a naturally occurring substance (dopamine) in the brain. Levodopa changes into dopamine in the brain, helping to control movement. Carbidopa prevents the breakdown of levodopa in the bloodstream so more levodopa can enter the brain. Carbidopa can also reduce some of levodopa's side effects such as nausea and vomiting.

In 2024, this provider wrote 42 Medicare prescriptions for Carbidopa-Levodopa, about 66% of the volume of the typical North Carolina prescriber of this medication (64.1). Medicare paid an average of $18.35 per fill, versus $28.17 statewide.

How often this provider prescribes it

This provider
42
NC average
64.1

This provider prescribes this medication less often than the average NC prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$18.35
NC average
$28.17

This provider's average cost per fill is below the NC average for this medication.

106.3
30-Day Fills
standardized to 30-day supplies
3,190
Days of Medication
total across all patients in 2024

About Rizatriptan: Rizatriptan is used to treat migraines. Show more ▾

It helps to relieve headache, pain, and other migraine symptoms (including nausea, vomiting, sensitivity to light/sound). Prompt treatment helps you return to your normal routine and may decrease your need for other pain medications. Rizatriptan belongs to a class of drugs known as triptans. It affects a certain natural substance (serotonin) that causes narrowing of blood vessels in the brain. It may also relieve pain by affecting certain nerves in the brain. Rizatriptan does not prevent future migraines or lessen how often you get migraine attacks.

In 2024, this provider wrote 41 Medicare prescriptions for Rizatriptan, about 1.6 times the volume of the typical North Carolina prescriber of this medication (25). Medicare paid an average of $22.09 per fill, versus $18.77 statewide.

How often this provider prescribes it

This provider
41
NC average
25.0

This provider prescribes this medication more often than the average NC prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$22.09
NC average
$18.77

Gross Part D cost per fill; not the patient's out-of-pocket price.

41
30-Day Fills
standardized to 30-day supplies
1,007
Days of Medication
total across all patients in 2024

About Ubrelvy: This medication is used to treat migraine. Show more ▾

Ubrogepant may work by changing the amount of a certain natural substance in the brain. It helps to relieve headache, pain, and other migraine symptoms (including nausea, vomiting, sensitivity to light/sound). Prompt treatment helps you return to your normal routine and may decrease your need for other pain medications. This medication is not used to prevent future migraines or lessen how often you get migraines. A calcitonin gene-related peptide receptor antagonist (CGRP-RA), for the acute treatment of migraine.

In 2024, this provider wrote 40 Medicare prescriptions for Ubrelvy, about 1.2 times the volume of the typical North Carolina prescriber of this medication (32.6). Medicare paid an average of $1,910.79 per fill, versus $1,365.68 statewide.

How often this provider prescribes it

This provider
40
NC average
32.6

This provider's prescribing volume for this medication is in line with the average NC prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$1,910.79
NC average
$1,365.68

Gross Part D cost per fill; not the patient's out-of-pocket price.

40
30-Day Fills
standardized to 30-day supplies
1,067
Days of Medication
total across all patients in 2024

About Alprazolam: Alprazolam is used to treat anxiety and panic disorders. Show more ▾

It belongs to a class of medications called benzodiazepines which act on the brain and nerves (central nervous system) to produce a calming effect. It works by enhancing the effects of a certain natural chemical in the body (GABA). A triazolobenzodiazepine compound with antianxiety and sedative-hypnotic actions, that is efficacious in the treatment of PANIC DISORDERS, with or without AGORAPHOBIA, and in generalized ANXIETY DISORDERS. (From AMA Drug Evaluations Annual, 1994, p238)

In 2024, this provider wrote 32 Medicare prescriptions for Alprazolam, about half the volume of the typical North Carolina prescriber of this medication (71.9). Medicare paid an average of $3.04 per fill, versus $4.85 statewide.

How often this provider prescribes it

This provider
32
NC average
71.9

This provider prescribes this medication less often than the average NC prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$3.04
NC average
$4.85

This provider's average cost per fill is below the NC average for this medication.

32
30-Day Fills
standardized to 30-day supplies
960
Days of Medication
total across all patients in 2024

About Primidone: This medication is used alone or with other medications to control seizures. Show more ▾

Controlling and reducing seizures lets you do more of your normal daily activities, reduces your risk of harm when you lose consciousness, and lessens your risk for a possibly life-threatening condition of frequent, repeated seizures. Primidone belongs to a class of drugs known as barbiturate anticonvulsants. It works by controlling the abnormal electrical activity in the brain that occurs during a seizure. A barbiturate derivative that acts as a GABA modulator and anti-epileptic agent. It is partly metabolized to PHENOBARBITAL in the body and owes some of its actions to this metabolite.

In 2024, this provider wrote 32 Medicare prescriptions for Primidone, about the same volume as the typical North Carolina prescriber of this medication (33.7). Medicare paid an average of $31.73 per fill, versus $22.00 statewide.

How often this provider prescribes it

This provider
32
NC average
33.7

This provider's prescribing volume for this medication is in line with the average NC prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$31.73
NC average
$22.00

Gross Part D cost per fill; not the patient's out-of-pocket price.

67.4
30-Day Fills
standardized to 30-day supplies
2,022
Days of Medication
total across all patients in 2024

About Aimovig Autoinjector: This medication is used to help prevent migraine. Show more ▾

This medication may work by changing the amounts of certain natural substances in the brain. Erenumab belongs to a class of drugs known as monoclonal antibodies. Preventing frequent migraine attacks can help improve your ability to concentrate and do your usual tasks. Anti-human calcitonin gene-related peptide monoclonal antibody for the prevention of migraine headaches.

In 2024, this provider wrote 31 Medicare prescriptions for Aimovig Autoinjector, about 86% of the volume of the typical North Carolina prescriber of this medication (36.2). Medicare paid an average of $735.10 per fill, versus $874.04 statewide.

How often this provider prescribes it

This provider
31
NC average
36.2

This provider's prescribing volume for this medication is in line with the average NC prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$735.10
NC average
$874.04

This provider's average cost per fill is below the NC average for this medication.

31
30-Day Fills
standardized to 30-day supplies
930
Days of Medication
total across all patients in 2024

About Pregabalin: This medication is used to treat pain caused by nerve damage due to diabetes, shingles (herpes zoster) infection, or spinal cord injury. Show more ▾

This medication is also used to treat pain in people with fibromyalgia. It is also used with other medications to treat certain types of seizures (focal seizures). A gamma-aminobutyric acid (GABA) derivative that functions as a CALCIUM CHANNEL BLOCKER and is used as an ANTICONVULSANT as well as an ANTI-ANXIETY AGENT. It is also used as an ANALGESIC in the treatment of NEUROPATHIC PAIN and FIBROMYALGIA.

In 2024, this provider wrote 30 Medicare prescriptions for Pregabalin, about 63% of the volume of the typical North Carolina prescriber of this medication (47.6). Medicare paid an average of $76.37 per fill, versus $21.67 statewide.

How often this provider prescribes it

This provider
30
NC average
47.6

This provider prescribes this medication less often than the average NC prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$76.37
NC average
$21.67

Gross Part D cost per fill; not the patient's out-of-pocket price.

64
30-Day Fills
standardized to 30-day supplies
1,919
Days of Medication
total across all patients in 2024

About Emgality Pen: This medication is used to help prevent migraine. Show more ▾

It is also used to treat a certain type of headache (episodic cluster headache). Galcanezumab belongs to a class of drugs known as monoclonal antibodies. This medication may work by changing the amounts of certain natural substances in the brain. Using this medication can help improve your ability to concentrate and do your usual tasks. Immunoglobulin G4 anti-human calcitonin gene-related peptide monoclonal antibody for the treatment of migraine.

In 2024, this provider wrote 30 Medicare prescriptions for Emgality Pen, about 78% of the volume of the typical North Carolina prescriber of this medication (38.2). Medicare paid an average of $794.70 per fill, versus $818.11 statewide.

How often this provider prescribes it

This provider
30
NC average
38.2

This provider's prescribing volume for this medication is in line with the average NC prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$794.70
NC average
$818.11

This provider's average cost per fill is below the NC average for this medication.

34
30-Day Fills
standardized to 30-day supplies
1,018
Days of Medication
total across all patients in 2024

About Zolpidem Tartrate: Zolpidem is used for a short time to treat a certain sleep problem (insomnia) in adults. Show more ▾

If you have trouble falling asleep, it helps you fall asleep faster, so you can get a better night's rest. Zolpidem belongs to a class of drugs called sedative-hypnotics. It acts on your brain to produce a calming effect. An imidazopyridine derivative and short-acting GABA-A receptor agonist that is used for the treatment of INSOMNIA.

In 2024, this provider wrote 28 Medicare prescriptions for Zolpidem Tartrate, about half the volume of the typical North Carolina prescriber of this medication (49.8). Medicare paid an average of $8.50 per fill, versus $6.29 statewide.

How often this provider prescribes it

This provider
28
NC average
49.8

This provider prescribes this medication less often than the average NC prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$8.50
NC average
$6.29

Gross Part D cost per fill; not the patient's out-of-pocket price.

28
30-Day Fills
standardized to 30-day supplies
840
Days of Medication
total across all patients in 2024

About Propranolol Hcl: This medication is a beta blocker used to treat high blood pressure, irregular heartbeats, shaking (tremors), and other conditions. Show more ▾

It is used after a heart attack to improve the chance of survival. It is also used to prevent migraine headaches and chest pain (angina). Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems. Preventing chest pain can help improve your ability to exercise. This drug works by blocking the action of certain natural chemicals in your body (such as epinephrine) that affect the heart and blood vessels. This effect reduces heart rate, blood pressure, and strain on the heart. A widely used non-cardioselective beta-adrenergic antagonist. Propranolol has been used for MYOCARDIAL INFARCTION; ARRHYTHMIA; ANGINA PECTORIS; HYPERTENSION; HYPERTHYROIDISM; MIGRAINE; PHEOCHROMOCYTOMA; and ANXIETY but adverse effects instigate replacement by newer drugs.

In 2024, this provider wrote 27 Medicare prescriptions for Propranolol Hcl, about the same volume as the typical North Carolina prescriber of this medication (24.5). Medicare paid an average of $15.86 per fill, versus $14.85 statewide.

How often this provider prescribes it

This provider
27
NC average
24.5

This provider's prescribing volume for this medication is in line with the average NC prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$15.86
NC average
$14.85

Gross Part D cost per fill; not the patient's out-of-pocket price.

63
30-Day Fills
standardized to 30-day supplies
1,889
Days of Medication
total across all patients in 2024

About Cyclobenzaprine Hcl: Cyclobenzaprine is used short-term to treat muscle spasms. Show more ▾

It is usually used along with rest and physical therapy. It works by helping to relax the muscles. Lisseril is synonymous for HCl; structure.

In 2024, this provider wrote 26 Medicare prescriptions for Cyclobenzaprine Hcl, about 61% of the volume of the typical North Carolina prescriber of this medication (42.3). Medicare paid an average of $8.67 per fill, versus $9.06 statewide.

How often this provider prescribes it

This provider
26
NC average
42.3

This provider prescribes this medication less often than the average NC prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$8.67
NC average
$9.06

This provider's average cost per fill is below the NC average for this medication.

30
30-Day Fills
standardized to 30-day supplies
800
Days of Medication
total across all patients in 2024

About Duloxetine Hcl: This medication is used to treat certain mental/mood disorders (such as depression, anxiety). Show more ▾

It is also used to help relieve nerve pain (peripheral neuropathy) in people with diabetes or ongoing pain due to medical conditions such as arthritis, chronic back pain, or fibromyalgia (a condition that causes widespread pain). Duloxetine belongs to a class of drugs known as serotonin-norepinephrine reuptake inhibitors (SNRIs). It works by helping to restore the balance of certain natural substances (serotonin and norepinephrine) in the brain. A thiophene derivative and selective NEUROTRANSMITTER UPTAKE INHIBITOR for SEROTONIN and NORADRENALINE (SNRI). It is an ANTIDEPRESSIVE AGENT and ANXIOLYTIC, and is also used for the treatment of pain in patients with DIABETES MELLITUS and FIBROMYALGIA.

In 2024, this provider wrote 23 Medicare prescriptions for Duloxetine Hcl, about a third of the volume of the typical North Carolina prescriber of this medication (55.4). Medicare paid an average of $20.88 per fill, versus $21.02 statewide.

How often this provider prescribes it

This provider
23
NC average
55.4

This provider prescribes this medication less often than the average NC prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$20.88
NC average
$21.02

This provider's average cost per fill is below the NC average for this medication.

51
30-Day Fills
standardized to 30-day supplies
1,530
Days of Medication
total across all patients in 2024

About Promethazine Hcl: See also Warning section. Show more ▾

Promethazine is used to prevent and treat nausea and vomiting related to certain conditions (such as before/after surgery, motion sickness). It is also used to treat allergy symptoms such as rash, itching, and runny nose. It may be used to help you feel sleepy/relaxed before and after surgery or to help certain opioid pain relievers (such as meperidine) work better. It may also be used for a short time to treat a runny nose due to the common cold. Promethazine is an antihistamine and works by blocking a certain natural substance (histamine) that your body makes during an allergic reaction. Its other effects (such as anti-nausea, calming, pain relief) may work by affecting other natural substances (such as acetylcholine) and by acting directly on certain parts of the brain. Cough-and-cold products have not been shown to be safe or effective in children younger than 6 years. Do not use this product to treat cold symptoms in children younger than 6 years unless specifically directed by the doctor. Some products (such as long-acting tablets/capsules) are not recommended for use in children younger than 12 years. Ask your doctor or pharmacist for more details about using your product safely. These products do not cure or shorten the length of the common cold and may cause serious side effects. To decrease the risk for serious side effects, carefully follow all dosage directions. Do not give other cough-and-cold medication that might contain the same or similar ingredients (see also Drug Interactions section). Ask the doctor or pharmacist about other ways to relieve cough and cold symptoms (such as drinking enough fluids, using a humidifier or saline nose drops/spray). A phenothiazine derivative with histamine H1-blocking, antimuscarinic, and sedative properties. It is used as an antiallergic, in pruritus, for motion sickness and sedation, and also in animals.

In 2024, this provider wrote 19 Medicare prescriptions for Promethazine Hcl, about 75% of the volume of the typical North Carolina prescriber of this medication (25.5). Medicare paid an average of $11.11 per fill, versus $10.62 statewide.

How often this provider prescribes it

This provider
19
NC average
25.5

This provider prescribes this medication less often than the average NC prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$11.11
NC average
$10.62

Gross Part D cost per fill; not the patient's out-of-pocket price.

19
30-Day Fills
standardized to 30-day supplies
143
Days of Medication
total across all patients in 2024

About Xyrem: See also Warning section. Show more ▾

Sodium oxybate is used to treat narcolepsy, a condition that causes severe daytime sleepiness. It can decrease daytime sleepiness and also reduce the number of sudden short attacks of weak/paralyzed muscles (known as cataplexy) that can occur in patients with narcolepsy. This medication is also known as gamma hydroxybutyrate (GHB). The sodium salt of 4-hydroxybutyric acid. It is used for both induction and maintenance of ANESTHESIA.

In 2024, this provider wrote 18 Medicare prescriptions for Xyrem. Medicare paid an average of $15,899.60 per fill. No state comparison is available for this medication.

How often this provider prescribes it

No state benchmark is available for this medication.

What Medicare paid per fill

$15,899.60
Cost per fill

Gross Part D cost per fill; not the patient's out-of-pocket price.

18
30-Day Fills
standardized to 30-day supplies
470
Days of Medication
total across all patients in 2024

About Lorazepam: This medication is used to treat anxiety. Show more ▾

Lorazepam belongs to a class of drugs known as benzodiazepines which act on the brain and nerves (central nervous system) to produce a calming effect. This drug works by enhancing the effects of a certain natural chemical in the body (GABA). A benzodiazepine used as an anti-anxiety agent with few side effects. It also has hypnotic, anticonvulsant, and considerable sedative properties and has been proposed as a preanesthetic agent.

In 2024, this provider wrote 18 Medicare prescriptions for Lorazepam, about a third of the volume of the typical North Carolina prescriber of this medication (50.3). Medicare paid an average of $4.39 per fill, versus $6.60 statewide.

How often this provider prescribes it

This provider
18
NC average
50.3

This provider prescribes this medication less often than the average NC prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$4.39
NC average
$6.60

This provider's average cost per fill is below the NC average for this medication.

18
30-Day Fills
standardized to 30-day supplies
451
Days of Medication
total across all patients in 2024

About Verapamil Er: Verapamil is used to treat high blood pressure. Show more ▾

Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems. Verapamil belongs to a class of drugs known as calcium channel blockers. It works by relaxing blood vessels so blood can flow more easily. Verapamil may also lower your heart rate. A calcium channel blocker that is a class IV anti-arrhythmia agent.

In 2024, this provider wrote 18 Medicare prescriptions for Verapamil Er, about the same volume as the typical North Carolina prescriber of this medication (19.5). Medicare paid an average of $27.52 per fill, versus $24.42 statewide.

How often this provider prescribes it

This provider
18
NC average
19.5

This provider's prescribing volume for this medication is in line with the average NC prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$27.52
NC average
$24.42

Gross Part D cost per fill; not the patient's out-of-pocket price.

54
30-Day Fills
standardized to 30-day supplies
1,620
Days of Medication
total across all patients in 2024

About Divalproex Sodium: This medication is used to treat seizure disorders, certain psychiatric conditions (manic phase of bipolar disorder), and to prevent migraine headaches. Show more ▾

It works by restoring the balance of certain natural substances (neurotransmitters) in the brain. A fatty acid with anticonvulsant and anti-manic properties that is used in the treatment of EPILEPSY and BIPOLAR DISORDER. The mechanisms of its therapeutic actions are not well understood. It may act by increasing GAMMA-AMINOBUTYRIC ACID levels in the brain or by altering the properties of VOLTAGE-GATED SODIUM CHANNELS.

In 2024, this provider wrote 17 Medicare prescriptions for Divalproex Sodium, about a third of the volume of the typical North Carolina prescriber of this medication (55.8). Medicare paid an average of $62.20 per fill, versus $40.59 statewide.

How often this provider prescribes it

This provider
17
NC average
55.8

This provider prescribes this medication less often than the average NC prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$62.20
NC average
$40.59

Gross Part D cost per fill; not the patient's out-of-pocket price.

19
30-Day Fills
standardized to 30-day supplies
548
Days of Medication
total across all patients in 2024

About Dextroamphetamine-Amphetamine: This combination medication is used to treat attention deficit hyperactivity disorder - ADHD. Show more ▾

It works by changing the amounts of certain natural substances in the brain. Amphetamine/dextroamphetamine belongs to a class of drugs known as stimulants. It can help increase your ability to pay attention, stay focused on an activity, and control behavior problems. It may also help you to organize your tasks and improve listening skills. This drug is also used to treat a certain sleeping disorder (narcolepsy) to help you stay awake during the day. It should not be used to treat tiredness or to hold off sleep in people who do not have a sleep disorder.

In 2024, this provider wrote 16 Medicare prescriptions for Dextroamphetamine-Amphetamine, about half the volume of the typical North Carolina prescriber of this medication (32.4). Medicare paid an average of $35.22 per fill, versus $32.79 statewide.

How often this provider prescribes it

This provider
16
NC average
32.4

This provider prescribes this medication less often than the average NC prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$35.22
NC average
$32.79

Gross Part D cost per fill; not the patient's out-of-pocket price.

16
30-Day Fills
standardized to 30-day supplies
480
Days of Medication
total across all patients in 2024

About Trazodone Hcl: This medication is used to treat depression. Show more ▾

Trazodone works by helping to restore the balance of a certain natural substance (serotonin) in the brain. A serotonin uptake inhibitor that is used as an antidepressive agent. It has been shown to be effective in patients with major depressive disorders and other subsets of depressive disorders. It is generally more useful in depressive disorders associated with insomnia and anxiety. This drug does not aggravate psychotic symptoms in patients with schizophrenia or schizoaffective disorders. (From AMA Drug Evaluations Annual, 1994, p309)

In 2024, this provider wrote 16 Medicare prescriptions for Trazodone Hcl, about a quarter of the volume of the typical North Carolina prescriber of this medication (74.9). Medicare paid an average of $0.56 per fill, versus $8.65 statewide.

How often this provider prescribes it

This provider
16
NC average
74.9

This provider prescribes this medication less often than the average NC prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$0.56
NC average
$8.65

This provider's average cost per fill is below the NC average for this medication.

36
30-Day Fills
standardized to 30-day supplies
1,080
Days of Medication
total across all patients in 2024

About Methylphenidate Hcl: This medication is used to treat attention deficit hyperactivity disorder - ADHD. Show more ▾

It works by changing the amounts of certain natural substances in the brain. Methylphenidate belongs to a class of drugs known as stimulants. It can help increase your ability to pay attention, stay focused on an activity, and control behavior problems. It may also help you to organize your tasks and improve listening skills. This medication is also used to treat a certain sleep disorder (narcolepsy). A central nervous system stimulant used most commonly in the treatment of ATTENTION DEFICIT DISORDER in children and for NARCOLEPSY. Its mechanisms appear to be similar to those of DEXTROAMPHETAMINE. The d-isomer of this drug is referred to as DEXMETHYLPHENIDATE HYDROCHLORIDE.

In 2024, this provider wrote 15 Medicare prescriptions for Methylphenidate Hcl, about 69% of the volume of the typical North Carolina prescriber of this medication (21.7). Medicare paid an average of $37.80 per fill, versus $24.88 statewide.

How often this provider prescribes it

This provider
15
NC average
21.7

This provider prescribes this medication less often than the average NC prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$37.80
NC average
$24.88

Gross Part D cost per fill; not the patient's out-of-pocket price.

15
30-Day Fills
standardized to 30-day supplies
450
Days of Medication
total across all patients in 2024

About Memantine Hcl: Memantine is used to treat moderate to severe confusion (dementia) related to Alzheimer's disease. Show more ▾

It does not cure Alzheimer's disease, but it may improve memory, awareness, and the ability to perform daily functions. This medication works by blocking the action of a certain natural substance in the brain (glutamate) that is believed to be linked to symptoms of Alzheimer's disease. AMANTADINE derivative that has some dopaminergic effects. It has been proposed as an antiparkinson agent.

In 2024, this provider wrote 15 Medicare prescriptions for Memantine Hcl, about a quarter of the volume of the typical North Carolina prescriber of this medication (56.4). Medicare paid an average of $29.61 per fill, versus $28.36 statewide.

How often this provider prescribes it

This provider
15
NC average
56.4

This provider prescribes this medication less often than the average NC prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$29.61
NC average
$28.36

Gross Part D cost per fill; not the patient's out-of-pocket price.

37.3
30-Day Fills
standardized to 30-day supplies
1,120
Days of Medication
total across all patients in 2024

About Galantamine Hbr: Galantamine is used to treat mild to moderate confusion (dementia) related to Alzheimer's disease. Show more ▾

It does not cure Alzheimer's disease, but it may improve memory, awareness, and the ability to perform daily functions. This medication works by restoring the balance of certain natural substances (neurotransmitters) in the brain. A benzazepine derived from norbelladine. It is found in GALANTHUS and other AMARYLLIDACEAE. It is a cholinesterase inhibitor that has been used to reverse the muscular effects of GALLAMINE TRIETHIODIDE and TUBOCURARINE and has been studied as a treatment for ALZHEIMER DISEASE and other central nervous system disorders.

In 2024, this provider wrote 14 Medicare prescriptions for Galantamine Hbr, about half the volume of the typical North Carolina prescriber of this medication (24.2). Medicare paid an average of $56.71 per fill, versus $65.39 statewide.

How often this provider prescribes it

This provider
14
NC average
24.2

This provider prescribes this medication less often than the average NC prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$56.71
NC average
$65.39

This provider's average cost per fill is below the NC average for this medication.

24
30-Day Fills
standardized to 30-day supplies
720
Days of Medication
total across all patients in 2024

About Divalproex Sodium Er: This medication is used to treat seizure disorders, mental/mood conditions (such as manic phase of bipolar disorder), and to prevent migraine headaches. Show more ▾

It works by restoring the balance of certain natural substances (neurotransmitters) in the brain. A fatty acid with anticonvulsant and anti-manic properties that is used in the treatment of EPILEPSY and BIPOLAR DISORDER. The mechanisms of its therapeutic actions are not well understood. It may act by increasing GAMMA-AMINOBUTYRIC ACID levels in the brain or by altering the properties of VOLTAGE-GATED SODIUM CHANNELS.

In 2024, this provider wrote 14 Medicare prescriptions for Divalproex Sodium Er, about a third of the volume of the typical North Carolina prescriber of this medication (34.2). Medicare paid an average of $33.21 per fill, versus $48.70 statewide.

How often this provider prescribes it

This provider
14
NC average
34.2

This provider prescribes this medication less often than the average NC prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$33.21
NC average
$48.70

This provider's average cost per fill is below the NC average for this medication.

42
30-Day Fills
standardized to 30-day supplies
1,260
Days of Medication
total across all patients in 2024

About Emgality Syringe: This medication is used to help prevent migraine. Show more ▾

It is also used to treat a certain type of headache (episodic cluster headache). Galcanezumab belongs to a class of drugs known as monoclonal antibodies. This medication may work by changing the amounts of certain natural substances in the brain. Using this medication can help improve your ability to concentrate and do your usual tasks. Immunoglobulin G4 anti-human calcitonin gene-related peptide monoclonal antibody for the treatment of migraine.

In 2024, this provider wrote 13 Medicare prescriptions for Emgality Syringe, about 61% of the volume of the typical North Carolina prescriber of this medication (21.4). Medicare paid an average of $711.77 per fill, versus $976.48 statewide.

How often this provider prescribes it

This provider
13
NC average
21.4

This provider prescribes this medication less often than the average NC prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$711.77
NC average
$976.48

This provider's average cost per fill is below the NC average for this medication.

13
30-Day Fills
standardized to 30-day supplies
390
Days of Medication
total across all patients in 2024

About Ajovy Autoinjector: This medication is used to help prevent migraine. Show more ▾

This medication may work by changing the amounts of certain natural substances in the brain. Fremanezumab belongs to a class of drugs known as monoclonal antibodies. Preventing frequent migraine attacks can help improve your ability to concentrate and do your usual tasks. An anti-CGRP antibody for treatment of migraine.

In 2024, this provider wrote 13 Medicare prescriptions for Ajovy Autoinjector, about half the volume of the typical North Carolina prescriber of this medication (24.9). Medicare paid an average of $761.15 per fill, versus $936.20 statewide.

How often this provider prescribes it

This provider
13
NC average
24.9

This provider prescribes this medication less often than the average NC prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$761.15
NC average
$936.20

This provider's average cost per fill is below the NC average for this medication.

15
30-Day Fills
standardized to 30-day supplies
450
Days of Medication
total across all patients in 2024

About Butalbital-Acetaminophen-Caffe: This combination medication is used to treat tension headaches. Show more ▾

Acetaminophen helps to decrease the pain from the headache. Caffeine helps increase the effects of acetaminophen. Butalbital is a sedative that helps to decrease anxiety and cause sleepiness and relaxation.

In 2024, this provider wrote 12 Medicare prescriptions for Butalbital-Acetaminophen-Caffe, about half the volume of the typical North Carolina prescriber of this medication (23.5). Medicare paid an average of $8.09 per fill, versus $28.14 statewide.

How often this provider prescribes it

This provider
12
NC average
23.5

This provider prescribes this medication less often than the average NC prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$8.09
NC average
$28.14

This provider's average cost per fill is below the NC average for this medication.

12
30-Day Fills
standardized to 30-day supplies
105
Days of Medication
total across all patients in 2024

About Clobazam: This medication is used with other medications to help control seizures. Show more ▾

It belongs to a class of medications called benzodiazepines, which act on the brain and nerves (central nervous system) to produce a calming effect. This drug works by enhancing the effects of a certain natural chemical in the body (GABA). A benzodiazepine derivative that is a long-acting GABA-A RECEPTOR agonist. It is used as an antiepileptic in the treatment of SEIZURES, including seizures associated with LENNOX-GASTAUT SYNDROME. It is also used as an anxiolytic, for the short-term treatment of acute ANXIETY.

In 2024, this provider wrote 12 Medicare prescriptions for Clobazam, about a third of the volume of the typical North Carolina prescriber of this medication (37.6). Medicare paid an average of $30.08 per fill, versus $110.42 statewide.

How often this provider prescribes it

This provider
12
NC average
37.6

This provider prescribes this medication less often than the average NC prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$30.08
NC average
$110.42

This provider's average cost per fill is below the NC average for this medication.

12
30-Day Fills
standardized to 30-day supplies
360
Days of Medication
total across all patients in 2024

About Diazepam: Diazepam is used to treat anxiety, alcohol withdrawal, and seizures. Show more ▾

It is also used to relieve muscle spasms and to provide sedation before medical procedures. This medication works by calming the brain and nerves. Diazepam belongs to a class of drugs known as benzodiazepines. A benzodiazepine with anticonvulsant, anxiolytic, sedative, muscle relaxant, and amnesic properties and a long duration of action. Its actions are mediated by enhancement of GAMMA-AMINOBUTYRIC ACID activity.

In 2024, this provider wrote 11 Medicare prescriptions for Diazepam, about a third of the volume of the typical North Carolina prescriber of this medication (29.8). Medicare paid an average of $8.21 per fill, versus $8.57 statewide.

How often this provider prescribes it

This provider
11
NC average
29.8

This provider prescribes this medication less often than the average NC prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$8.21
NC average
$8.57

This provider's average cost per fill is below the NC average for this medication.

11
30-Day Fills
standardized to 30-day supplies
260
Days of Medication
total across all patients in 2024

About Propranolol Hcl Er: This medication is a beta blocker used to treat high blood pressure, irregular heartbeats, shaking (tremors), and other conditions as determined by your doctor. Show more ▾

It is used after a heart attack to improve survival. It is also used to prevent migraine headaches and chest pain (angina). Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems. Preventing chest pain can help improve your ability to exercise. This drug works by blocking the action of certain natural chemicals in your body (such as epinephrine) that affect the heart and blood vessels. This effect reduces heart rate, blood pressure, and strain on the heart. A widely used non-cardioselective beta-adrenergic antagonist. Propranolol has been used for MYOCARDIAL INFARCTION; ARRHYTHMIA; ANGINA PECTORIS; HYPERTENSION; HYPERTHYROIDISM; MIGRAINE; PHEOCHROMOCYTOMA; and ANXIETY but adverse effects instigate replacement by newer drugs.

In 2024, this provider wrote 11 Medicare prescriptions for Propranolol Hcl Er, about half the volume of the typical North Carolina prescriber of this medication (21.4). Medicare paid an average of $63.10 per fill, versus $33.73 statewide.

How often this provider prescribes it

This provider
11
NC average
21.4

This provider prescribes this medication less often than the average NC prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$63.10
NC average
$33.73

Gross Part D cost per fill; not the patient's out-of-pocket price.

23
30-Day Fills
standardized to 30-day supplies
666
Days of Medication
total across all patients in 2024

About Ingrezza: Valbenazine is used to treat involuntary movements of the face, tongue, or other body parts (tardive dyskinesia). Show more ▾

This medication is also used to decrease the involuntary movements (chorea) caused by Huntington's disease. Reducing involuntary movements will help you take part in more of your normal daily activities. This medication is thought to work by decreasing the amount of certain natural substances in the brain that affect how your nerves and muscles work (monoamines such as dopamine, serotonin, and norepinephrine). Inhibits vesicular monoamine transporter 2 (VMAT2); used to treat tardive dyskinesia.

In 2024, this provider wrote 11 Medicare prescriptions for Ingrezza, about half the volume of the typical North Carolina prescriber of this medication (23.2). Medicare paid an average of $9,406.71 per fill, versus $7,854.41 statewide.

How often this provider prescribes it

This provider
11
NC average
23.2

This provider prescribes this medication less often than the average NC prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$9,406.71
NC average
$7,854.41

Gross Part D cost per fill; not the patient's out-of-pocket price.

11
30-Day Fills
standardized to 30-day supplies
330
Days of Medication
total across all patients in 2024

About Prednisone: Prednisone is used to treat conditions such as arthritis, blood disorders, breathing problems, severe allergies, skin diseases, cancer, eye problems, and immune system disorders. Show more ▾

Prednisone belongs to a class of drugs known as corticosteroids. It decreases your immune system's response to various diseases to reduce symptoms such as swelling and allergic-type reactions. A synthetic anti-inflammatory glucocorticoid derived from CORTISONE. It is biologically inert and converted to PREDNISOLONE in the liver.

In 2024, this provider wrote 11 Medicare prescriptions for Prednisone, about a quarter of the volume of the typical North Carolina prescriber of this medication (51.3). Medicare paid an average of $2.76 per fill, versus $4.07 statewide.

How often this provider prescribes it

This provider
11
NC average
51.3

This provider prescribes this medication less often than the average NC prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$2.76
NC average
$4.07

This provider's average cost per fill is below the NC average for this medication.

11
30-Day Fills
standardized to 30-day supplies
133
Days of Medication
total across all patients in 2024

About Zonisamide: Zonisamide is used with other medications to prevent and control seizures (epilepsy). Show more ▾

Zonisamide is a sulfonamide anticonvulsant and a carbonic anhydrase inhibitor. It is unknown how zonisamide works to prevent seizures. A benzisoxazole and sulfonamide derivative that acts as a CALCIUM CHANNEL blocker. It is used primarily as an adjunctive antiepileptic agent for the treatment of PARTIAL SEIZURES, with or without secondary generalization.

In 2024, this provider wrote 11 Medicare prescriptions for Zonisamide, about a third of the volume of the typical North Carolina prescriber of this medication (31.7). Medicare paid an average of $29.14 per fill, versus $28.36 statewide.

How often this provider prescribes it

This provider
11
NC average
31.7

This provider prescribes this medication less often than the average NC prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$29.14
NC average
$28.36

Gross Part D cost per fill; not the patient's out-of-pocket price.

21
30-Day Fills
standardized to 30-day supplies
630
Days of Medication
total across all patients in 2024
No medications match the current filters.
= the 5 medications this provider prescribes most.▲ More than typical≈ Typical▼ Less than typical= prescription volume vs the average NC prescriber of the same medication; volume reflects practice size as well as clinical preference.Green cost= below the NC average cost per fill.

About this data. The prescription history for CLARK WILLIAM PINYAN MD is compiled from the Centers for Medicare & Medicaid Services (CMS) Medicare Part D Prescriber Public Use File for calendar year 2024, the most recent federal release. Figures cover prescriptions filled for Medicare Part D beneficiaries only; prescriptions under private insurance, Medicaid, or self-pay plans are not included. Because prescribing decisions are generally consistent across coverage types, this record offers a useful view of the overall Neurology prescribing approach at this Clemmons, NC practice.

Reading the costs. Drug costs are gross amounts paid to pharmacies under Part D, including both plan and beneficiary payments. They are not the price a patient pays at the pharmacy counter. Medications with fewer than 11 claims are excluded from the federal source data, and state comparisons use the average among NC prescribers of the same medication and form, shown only when at least five prescribers contribute. Always confirm current medications and costs directly with the provider and your plan.

About the medication summaries. Drug use descriptions come from the CMS Medicare Part D Drug Spending Dashboard (2024), and substance definitions from Medical Subject Headings (MeSH) 2026, U.S. National Library of Medicine. They are summaries that do not contain all possible information about a medication and are not individual medical advice. Ask a health care professional about any medication and your specific health needs.