DR. NATHAN S. JOHNSTON
Prescription History 1619232113
Psychiatry & Neurology - Psychiatry in San Antonio, TX
Medicare Part D Prescription History
Explore the verified Medicare Part D prescription history, volume metrics, and calculated drug costs for DR. NATHAN S. JOHNSTON, an active Psychiatry specialist practicing in San Antonio, TX. Our medical registry currently tracks 14 unique pharmaceutical formulations prescribed by this provider, representing an estimated volume of 361 documented patient claims. Among these therapy options, the most frequently utilized medication is Spravato, which accounts for 111 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.
| Medication | Prescriptions (2023)Rx (2023) | Avg Cost per FillCost / Fill | Vs. Other TX PrescribersVs. TX Avg |
|---|---|---|---|
| SpravatoEsketamine Hcl | 111 | $1,125.58▼ below TX avg | ▲ More than typical |
About Spravato: This medication is used along with an antidepressant taken by mouth to treat depression in adults. Show more ▾ It may improve your mood and restore your interest in daily living. In 2023, this provider wrote 111 Medicare prescriptions for Spravato, about 2.2 times the volume of the typical Texas prescriber of this medication (51). Medicare paid an average of $1,125.58 per fill, versus $1,389.22 statewide. How often this provider prescribes it This provider prescribes this medication more often than the average TX prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill This provider's average cost per fill is below the TX average for this medication. 111 30-Day Fills standardized to 30-day supplies 526 Days of Medication total across all patients in 2023 | |||
| Clonazepam | 37 | $5.28▼ below TX avg | ▼ Less than typical |
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 2023, this provider wrote 37 Medicare prescriptions for Clonazepam, about 74% of the volume of the typical Texas prescriber of this medication (50). Medicare paid an average of $5.28 per fill, versus $9.40 statewide. How often this provider prescribes it This provider prescribes this medication less often than the average TX prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill This provider's average cost per fill is below the TX average for this medication. 37 30-Day Fills standardized to 30-day supplies 987 Days of Medication total across all patients in 2023 | |||
| Fluoxetine Hcl | 32 | $6.70▼ below TX avg | ≈ Typical |
About Fluoxetine Hcl: This long-acting form of fluoxetine is used to treat depression in people who have been successfully treated with the form of fluoxetine that is taken daily. Show more ▾ Fluoxetine is a selective serotonin reuptake inhibitor (SSRI). SSRIs work by helping to restore the balance of certain natural substances in the brain (neurotransmitters such as serotonin). Fluoxetine may decrease anxiety, improve your mood, sleep, appetite, and energy level and may help restore your interest in daily living. The first highly specific serotonin uptake inhibitor. It is used as an antidepressant and often has a more acceptable side-effects profile than traditional antidepressants. In 2023, this provider wrote 32 Medicare prescriptions for Fluoxetine Hcl, about 86% of the volume of the typical Texas prescriber of this medication (37). Medicare paid an average of $6.70 per fill, versus $14.62 statewide. How often this provider prescribes it This provider's prescribing volume for this medication is in line with the average TX prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill This provider's average cost per fill is below the TX average for this medication. 40 30-Day Fills standardized to 30-day supplies 1,200 Days of Medication total across all patients in 2023 | |||
| Sertraline Hcl | 30 | $14.51 | ▼ Less than typical |
About Sertraline Hcl: Sertraline is used to treat depression, panic attacks, obsessive compulsive disorder, post-traumatic stress disorder, social anxiety disorder (social phobia), and a severe form of premenstrual syndrome (premenstrual dysphoric disorder). Show more ▾ This medication may improve your mood, sleep, appetite, and energy level and may help restore your interest in daily living. It may decrease fear, anxiety, unwanted thoughts, and the number of panic attacks. It may also reduce the urge to perform repeated tasks (compulsions such as hand-washing, counting, and checking) that interfere with daily living. Sertraline is known as a selective serotonin reuptake inhibitor (SSRI). It works by helping to restore the balance of a certain natural substance (serotonin) in the brain. In 2023, this provider wrote 30 Medicare prescriptions for Sertraline Hcl, about half the volume of the typical Texas prescriber of this medication (58). Medicare paid an average of $14.51 per fill, versus $11.23 statewide. How often this provider prescribes it This provider prescribes this medication less often than the average TX prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill Gross Part D cost per fill; not the patient's out-of-pocket price. 48 30-Day Fills standardized to 30-day supplies 1,440 Days of Medication total across all patients in 2023 | |||
| Bupropion XlBupropion Hcl | 25 | $22.17▼ below TX avg | ▼ Less than typical |
About Bupropion Xl: Bupropion is used to treat depression. Show more ▾ It can improve your mood and feelings of well-being. It may work by helping to restore the balance of certain natural chemicals (neurotransmitters) in your brain. In 2023, this provider wrote 25 Medicare prescriptions for Bupropion Xl, about 68% of the volume of the typical Texas prescriber of this medication (37). Medicare paid an average of $22.17 per fill, versus $37.71 statewide. How often this provider prescribes it This provider prescribes this medication less often than the average TX prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill This provider's average cost per fill is below the TX average for this medication. 32.5 30-Day Fills standardized to 30-day supplies 976 Days of Medication total across all patients in 2023 | |||
| Trazodone Hcl | 21 | $5.14▼ below TX avg | ▼ Less than typical |
About Trazodone Hcl: This medication is used to treat depression. Show more ▾ It may help to improve your mood, appetite, and energy level as well as decrease anxiety and insomnia related to depression. Trazodone works by helping to restore the balance of a certain natural chemical (serotonin) in the brain. In 2023, this provider wrote 21 Medicare prescriptions for Trazodone Hcl, about a third of the volume of the typical Texas prescriber of this medication (64). Medicare paid an average of $5.14 per fill, versus $12.94 statewide. How often this provider prescribes it This provider prescribes this medication less often than the average TX prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill This provider's average cost per fill is below the TX average for this medication. 21 30-Day Fills standardized to 30-day supplies 630 Days of Medication total across all patients in 2023 | |||
| Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine | 18 | $44.69 | ▼ Less than typical |
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 2023, this provider wrote 18 Medicare prescriptions for Dextroamphetamine-Amphetamine, about half the volume of the typical Texas prescriber of this medication (34). Medicare paid an average of $44.69 per fill, versus $41.45 statewide. How often this provider prescribes it This provider prescribes this medication less often than the average TX prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill Gross Part D cost per fill; not the patient's out-of-pocket price. 19 30-Day Fills standardized to 30-day supplies 570 Days of Medication total across all patients in 2023 | |||
| Alprazolam | 16 | $3.46▼ below TX avg | ▼ Less than typical |
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 2023, this provider wrote 16 Medicare prescriptions for Alprazolam, about a quarter of the volume of the typical Texas prescriber of this medication (68). Medicare paid an average of $3.46 per fill, versus $8.23 statewide. How often this provider prescribes it This provider prescribes this medication less often than the average TX prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill This provider's average cost per fill is below the TX average for this medication. 18 30-Day Fills standardized to 30-day supplies 525 Days of Medication total across all patients in 2023 | |||
| Lamotrigine | 14 | $2.85▼ below TX avg | ▼ Less than typical |
About Lamotrigine: Lamotrigine is used alone or with other medications to prevent and control seizures. Show more ▾ It may also be used to help prevent the extreme mood swings of bipolar disorder in adults. Lamotrigine is known as an anticonvulsant or antiepileptic drug. It is thought to work by restoring the balance of certain natural substances in the brain. This drug is not approved for use in children younger than 2 years due to an increased risk of side effects (such as infections). A phenyltriazine compound, sodium and calcium channel blocker that is used for the treatment of SEIZURES and BIPOLAR DISORDER. In 2023, this provider wrote 14 Medicare prescriptions for Lamotrigine, about a third of the volume of the typical Texas prescriber of this medication (42). Medicare paid an average of $2.85 per fill, versus $17.15 statewide. How often this provider prescribes it This provider prescribes this medication less often than the average TX prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill This provider's average cost per fill is below the TX average for this medication. 16 30-Day Fills standardized to 30-day supplies 480 Days of Medication total across all patients in 2023 | |||
| Doxepin Hcl | 13 | $238.50 | ▼ Less than typical |
About Doxepin Hcl: This medication is used to treat mental/mood problems such as depression and anxiety. Show more ▾ It may help improve mood and feelings of well-being, relieve anxiety and tension, help you sleep better, and increase your energy level. This medication belongs to a class of medications called tricyclic antidepressants. It works by affecting the balance of certain natural chemicals (neurotransmitters) in the brain. In 2023, this provider wrote 13 Medicare prescriptions for Doxepin Hcl, about half the volume of the typical Texas prescriber of this medication (25). Medicare paid an average of $238.50 per fill, versus $54.35 statewide. How often this provider prescribes it This provider prescribes this medication less often than the average TX prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill Gross Part D cost per fill; not the patient's out-of-pocket price. 13 30-Day Fills standardized to 30-day supplies 390 Days of Medication total across all patients in 2023 | |||
| Lithium Carbonate ErLithium Carbonate | 11 | $6.84▼ below TX avg | ▼ Less than typical |
About Lithium Carbonate Er: This medication is used to treat manic-depressive disorder (bipolar disorder). Show more ▾ It works to stabilize the mood and reduce extremes in behavior by restoring the balance of certain natural substances (neurotransmitters) in the brain. Some of the benefits of continued use of this medication include decreasing how often manic episodes occur and decreasing the symptoms of manic episodes, such as exaggerated feelings of well-being, feelings that others wish to harm you, irritability, anxiousness, rapid/loud speech, and aggressive/hostile behaviors. A lithium salt, classified as a mood-stabilizing agent. Lithium ion alters the metabolism of BIOGENIC MONOAMINES in the CENTRAL NERVOUS SYSTEM, and affects multiple neurotransmission systems. In 2023, this provider wrote 11 Medicare prescriptions for Lithium Carbonate Er, about half the volume of the typical Texas prescriber of this medication (24). Medicare paid an average of $6.84 per fill, versus $17.05 statewide. How often this provider prescribes it This provider prescribes this medication less often than the average TX prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill This provider's average cost per fill is below the TX average for this medication. 11 30-Day Fills standardized to 30-day supplies 330 Days of Medication total across all patients in 2023 | |||
| Lurasidone Hcl | 11 | $520.45 | – No State Data |
In 2023, this provider wrote 11 Medicare prescriptions for Lurasidone Hcl. Medicare paid an average of $520.45 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 $520.45 Cost per fill 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 2023 | |||
| Risperidone | 11 | $5.68▼ below TX avg | ▼ Less than typical |
About Risperidone: Risperidone is used to treat a certain mental/mood disorder called schizophrenia. Show more ▾ This medication can decrease hallucinations, help you to think more clearly and positively about yourself, feel less agitated, and take a more active part in everyday life. Risperidone is an antipsychotic drug (atypical type). It works by helping to restore the balance of certain natural substances in the brain. A selective blocker of DOPAMINE D2 RECEPTORS and SEROTONIN 5-HT2 RECEPTORS that acts as an atypical antipsychotic agent. It has been shown to improve both positive and negative symptoms in the treatment of SCHIZOPHRENIA. In 2023, this provider wrote 11 Medicare prescriptions for Risperidone, about a quarter of the volume of the typical Texas prescriber of this medication (49). Medicare paid an average of $5.68 per fill, versus $14.90 statewide. How often this provider prescribes it This provider prescribes this medication less often than the average TX prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill This provider's average cost per fill is below the TX average for this medication. 15 30-Day Fills standardized to 30-day supplies 450 Days of Medication total across all patients in 2023 | |||
| Zolpidem Tartrate | 11 | $0.65▼ below TX avg | ▼ Less than typical |
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 2023, this provider wrote 11 Medicare prescriptions for Zolpidem Tartrate, about a quarter of the volume of the typical Texas prescriber of this medication (47). Medicare paid an average of $0.65 per fill, versus $8.93 statewide. How often this provider prescribes it This provider prescribes this medication less often than the average TX prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill This provider's average cost per fill is below the TX average for this medication. 11 30-Day Fills standardized to 30-day supplies 77 Days of Medication total across all patients in 2023 | |||
About this data. The prescription history for DR. NATHAN S. JOHNSTON is compiled from the Centers for Medicare & Medicaid Services (CMS) Medicare Part D Prescriber Public Use File for calendar year 2023, 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 Psychiatry prescribing approach at this San Antonio, TX 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 volume among TX prescribers of the same medication. Always confirm current medications and costs directly with the provider and your plan.
