AMY NAQUIN-CHAPPEL MD
Prescription History 1376861237
Psychiatry & Neurology - Neurology in Houston, TX
What does Dr. Naquin-Chappel prescribe?
In 2024, Dr. Naquin-Chappel wrote 3,548 Medicare prescriptions for 56 medications. The most prescribed was Sertraline Hcl, with 401 prescriptions for 136 patients.
Medicare Part D only. These are prescriptions filled by people with Medicare drug coverage in 2024, from the CMS data released in 2026, the most recent year available. CMS does not publish medications with fewer than 11 prescriptions, so this is not a full list of what Dr. Naquin-Chappel prescribes.
Medications 56 medications
Prescriptions filled under Medicare Part D in 2024. Select a medication to see what it is used for and how it compares with other Texas prescribers.
What it is used for
This medication is used to treat certain mental/mood disorders (such as depression, panic attacks, obsessive compulsive disorder, post-traumatic stress disorder, social anxiety disorder).
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 401 prescriptions for Sertraline Hcl, about 6.8 times as often as the typical Texas prescriber of it (59). Medicare paid $13.87 per fill, versus $9.11 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Donepezil is used to treat confusion (dementia) related to Alzheimer's disease.
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 340 prescriptions for Donepezil Hcl, about 4.9 times as often as the typical Texas prescriber of it (70). Medicare paid $10.30 per fill, versus $12.48 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Memantine is used to treat moderate to severe confusion (dementia) related to Alzheimer's disease.
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 251 prescriptions for Memantine Hcl, about 3.7 times as often as the typical Texas prescriber of it (68). Medicare paid $21.14 per fill, versus $29.92 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Gabapentin is used with other medications to prevent and control seizures.
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 213 prescriptions for Gabapentin, about 2.2 times as often as the typical Texas prescriber of it (96). Medicare paid $24.58 per fill, versus $15.87 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as depression, anxiety).
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 197 prescriptions for Duloxetine Hcl, about 3.8 times as often as the typical Texas prescriber of it (52). Medicare paid $18.51 per fill, versus $23.99 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Levetiracetam is used to treat seizures (epilepsy).
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 151 prescriptions for Levetiracetam, about 2.9 times as often as the typical Texas prescriber of it (53). Medicare paid $38.32 per fill, versus $33.28 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Galantamine is used to treat mild to moderate confusion (dementia) related to Alzheimer's disease.
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 144 prescriptions for Galantamine Hbr, about 4.2 times as often as the typical Texas prescriber of it (34). Medicare paid $61.99 per fill, versus $67.31 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This combination medication is used to treat symptoms of Parkinson's disease or Parkinson-like symptoms (such as shakiness, stiffness, difficulty moving).
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 135 prescriptions for Carbidopa-Levodopa, about 2 times as often as the typical Texas prescriber of it (67). Medicare paid $38.95 per fill, versus $27.39 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as schizophrenia, bipolar disorder, sudden episodes of mania or depression associated with bipolar disorder).
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 134 prescriptions for Quetiapine Fumarate, about 2.7 times as often as the typical Texas prescriber of it (50). Medicare paid $19.07 per fill, versus $18.12 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This combination medication is used to treat symptoms of Parkinson's disease or Parkinson-like symptoms (such as shakiness, stiffness, difficulty moving).
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 113 prescriptions for Carbidopa-Levodopa Er, about 2.6 times as often as the typical Texas prescriber of it (44). Medicare paid $50.84 per fill, versus $52.06 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Topiramate is used alone or with other medications to prevent and control seizures (epilepsy).
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 97 prescriptions for Topiramate, about 3 times as often as the typical Texas prescriber of it (33). Medicare paid $15.73 per fill, versus $11.23 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat depression.
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 82 prescriptions for Mirtazapine, about 1.8 times as often as the typical Texas prescriber of it (46). Medicare paid $37.04 per fill, versus $19.94 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as depression, anxiety, panic attacks, and social anxiety disorder).
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 80 prescriptions for Venlafaxine Hcl Er, about 2.6 times as often as the typical Texas prescriber of it (31). Medicare paid $15.25 per fill, versus $23.06 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Cyclobenzaprine is used short-term to treat muscle spasms.
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 71 prescriptions for Cyclobenzaprine Hcl, about 1.8 times as often as the typical Texas prescriber of it (39). Medicare paid $10.16 per fill, versus $10.45 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat pain caused by nerve damage due to diabetes, shingles (herpes zoster) infection, or spinal cord injury.
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 58 prescriptions for Pregabalin, about as often as the typical Texas prescriber of it (53). Medicare paid $27.78 per fill, versus $25.26 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Clonazepam is used to prevent and control seizures.
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 57 prescriptions for Clonazepam, about 1.2 times as often as the typical Texas prescriber of it (48). Medicare paid $3.56 per fill, versus $8.82 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Rivastigmine is used to treat confusion (dementia) related to Alzheimer's disease and to Parkinson's disease.
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 57 prescriptions for Rivastigmine, about 1.9 times as often as the typical Texas prescriber of it (30). Medicare paid $59.73 per fill, versus $55.21 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to prevent or treat migraine.
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 47 prescriptions for Nurtec Odt, about 1.7 times as often as the typical Texas prescriber of it (28). Medicare paid $1,830.02 per fill, versus $1,529.86 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used alone or with other medications to prevent nausea and vomiting caused by cancer drug treatment (chemotherapy) and radiation therapy.
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 45 prescriptions for Ondansetron Odt, about 1.6 times as often as the typical Texas prescriber of it (28). Medicare paid $11.81 per fill, versus $13.32 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat migraine.
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 44 prescriptions for Ubrelvy, about 1.7 times as often as the typical Texas prescriber of it (26). Medicare paid $1,657.93 per fill, versus $1,378.67 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat muscle spasms caused by certain conditions (such as multiple sclerosis, spinal cord injury).
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 43 prescriptions for Tizanidine Hcl, about 78% as often as the typical Texas prescriber of it (55). Medicare paid $19.67 per fill, versus $10.81 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Methylprednisolone is used to treat conditions such as arthritis, blood disorders, severe allergic reactions, certain cancers, eye conditions, skin/kidney/intestinal/lung diseases, and immune system disorders.
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 41 prescriptions for Methylprednisolone, about as often as the typical Texas prescriber of it (36). Medicare paid $5.55 per fill, versus $7.37 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Memantine is used to treat moderate to severe confusion (dementia) related to Alzheimer's disease.
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 40 prescriptions for Memantine Hcl Er, about 1.3 times as often as the typical Texas prescriber of it (31). Medicare paid $95.38 per fill, versus $94.53 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Lamotrigine is used alone or with other medications to prevent and control seizures.
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 37 prescriptions for Lamotrigine, about 88% as often as the typical Texas prescriber of it (42). Medicare paid $16.98 per fill, versus $14.17 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to help prevent migraine.
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 36 prescriptions for Aimovig Autoinjector, about as often as the typical Texas prescriber of it (31). Medicare paid $717.45 per fill, versus $901.84 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Sumatriptan is used to treat migraines.
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 36 prescriptions for Sumatriptan Succinate, about 1.6 times as often as the typical Texas prescriber of it (22). Medicare paid $33.75 per fill, versus $20.15 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is a beta blocker used to treat high blood pressure, irregular heartbeats, shaking (tremors), and other conditions.
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 35 prescriptions for Propranolol Hcl, about 1.4 times as often as the typical Texas prescriber of it (24). Medicare paid $20.90 per fill, versus $15.40 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as depression, anxiety).
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 34 prescriptions for Escitalopram Oxalate, about 66% as often as the typical Texas prescriber of it (51). Medicare paid $10.31 per fill, versus $10.58 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Phenytoin is used to prevent and control seizures (also called an anticonvulsant or antiepileptic drug).
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 30 prescriptions for Phenytoin Sodium Extended, about 1.3 times as often as the typical Texas prescriber of it (23). Medicare paid $56.03 per fill, versus $31.45 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to prevent migraines.
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 28 prescriptions for Qulipta, about as often as the typical Texas prescriber of it (26). Medicare paid $1,132.30 per fill, versus $1,235.83 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Lacosamide is used to prevent and control seizures.
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 27 prescriptions for Lacosamide, about 60% as often as the typical Texas prescriber of it (45). Medicare paid $92.74 per fill, versus $129.21 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat depression.
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 26 prescriptions for Amitriptyline Hcl, about as often as the typical Texas prescriber of it (28). Medicare paid $19.71 per fill, versus $14.46 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat seizure disorders, certain psychiatric conditions (manic phase of bipolar disorder), and to prevent migraine headaches.
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 26 prescriptions for Divalproex Sodium, about half as often as the typical Texas prescriber of it (62). Medicare paid $23.68 per fill, versus $37.30 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Methocarbamol is used to treat muscle spasms/pain.
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 25 prescriptions for Methocarbamol, about 70% as often as the typical Texas prescriber of it (36). Medicare paid $11.16 per fill, versus $13.64 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used alone or with other medications to control seizures.
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 24 prescriptions for Primidone, about 66% as often as the typical Texas prescriber of it (36). Medicare paid $36.14 per fill, versus $24.69 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Galantamine is used to treat mild to moderate confusion (dementia) related to Alzheimer's disease.
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 23 prescriptions for Galantamine Er, about 65% as often as the typical Texas prescriber of it (35). Medicare paid $137.73 per fill, versus $95.13 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Oxcarbazepine is used alone or with other medications to treat seizure disorders (epilepsy).
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 23 prescriptions for Oxcarbazepine, about 63% as often as the typical Texas prescriber of it (36). Medicare paid $96.28 per fill, versus $59.44 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used alone or with other medications to control seizures.
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 22 prescriptions for Phenobarbital, about as often as the typical Texas prescriber of it (23). Medicare paid $44.97 per fill, versus $27.54 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This product is used to prevent or control seizures (epilepsy).
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 21 prescriptions for Lamotrigine Er, about as often as the typical Texas prescriber of it (19). Medicare paid $152.54 per fill, versus $241.85 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Topiramate is used alone or with other medications to prevent and control seizures (epilepsy).
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 21 prescriptions for Topiramate Er, about 1.2 times as often as the typical Texas prescriber of it (17). Medicare paid $441.54 per fill, versus $722.96 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat seizure disorders, mental/mood conditions (such as manic phase of bipolar disorder), and to prevent migraine headaches.
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 20 prescriptions for Divalproex Sodium Er, about half as often as the typical Texas prescriber of it (38). Medicare paid $24.67 per fill, versus $53.10 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Rizatriptan is used to treat migraines.
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 19 prescriptions for Rizatriptan, about 83% as often as the typical Texas prescriber of it (23). Medicare paid $11.00 per fill, versus $20.26 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used alone or with other medications to treat Parkinson's disease.
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 19 prescriptions for Ropinirole Hcl, about 62% as often as the typical Texas prescriber of it (31). Medicare paid $9.08 per fill, versus $17.12 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to help prevent migraine.
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 17 prescriptions for Emgality Pen, about half as often as the typical Texas prescriber of it (30). Medicare paid $792.99 per fill, versus $830.74 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Clopidogrel is used to prevent heart attacks and strokes in persons with heart disease (recent heart attack), recent stroke, or blood circulation disease (peripheral vascular disease).
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 16 prescriptions for Clopidogrel, about 25% as often as the typical Texas prescriber of it (64). Medicare paid $17.98 per fill, versus $11.09 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Levetiracetam is used to treat seizures (epilepsy).
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 16 prescriptions for Levetiracetam Er, about 60% as often as the typical Texas prescriber of it (26). Medicare paid $75.42 per fill, versus $71.82 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Eslicarbazepine is used alone or with other medications to treat a certain type of seizure disorder (focal seizures).
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 15 prescriptions for Aptiom, about half as often as the typical Texas prescriber of it (30). Medicare paid $2,314.37 per fill, versus $1,526.64 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Phenytoin is used to prevent and control seizures (also called an anticonvulsant or antiepileptic drug).
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 15 prescriptions for Dilantin, about 84% as often as the typical Texas prescriber of it (18). Medicare paid $179.79 per fill, versus $163.54 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Alprazolam is used to treat anxiety and panic disorders.
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 13 prescriptions for Alprazolam, about 20% as often as the typical Texas prescriber of it (66). Medicare paid $1.11 per fill, versus $5.46 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Pramipexole is used alone or with other medications to treat Parkinson's disease.
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 13 prescriptions for Pramipexole Dihydrochloride, about half as often as the typical Texas prescriber of it (26). Medicare paid $51.46 per fill, versus $16.78 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Perampanel is used to treat certain types of seizures (including focal and generalized tonic-clonic seizures).
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 12 prescriptions for Fycompa, about half as often as the typical Texas prescriber of it (27). Medicare paid $1,207.03 per fill, versus $1,269.37 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Levetiracetam is used to treat seizures (epilepsy).
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 12 prescriptions for Keppra, about 70% as often as the typical Texas prescriber of it (17). Medicare paid $603.50 per fill, versus $1,744.29 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Meloxicam is used to treat arthritis.
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 12 prescriptions for Meloxicam, about 21% as often as the typical Texas prescriber of it (57). Medicare paid $11.82 per fill, versus $4.11 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Zolmitriptan is used to treat migraines.
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 12 prescriptions for Zolmitriptan, about 85% as often as the typical Texas prescriber of it (14). Medicare paid $628.69 per fill, versus $139.64 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Carbamazepine is used to prevent and control seizures.
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 11 prescriptions for Carbamazepine, about half as often as the typical Texas prescriber of it (25). Medicare paid $55.66 per fill, versus $53.18 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Sumatriptan is used to treat migraines.
Compared with Texas prescribers
Dr. Naquin-Chappel wrote 11 prescriptions for Sumatriptan, about 77% as often as the typical Texas prescriber of it (14). Medicare paid $133.93 per fill, versus $132.03 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
Questions about Dr. Naquin-Chappel’s prescriptions
What does Dr. Naquin-Chappel prescribe most?
In 2024 Medicare Part D data, Dr. Naquin-Chappel's most prescribed medications were Sertraline Hcl (401), Donepezil Hcl (340) and Memantine Hcl (251).
How does Dr. Naquin-Chappel's prescribing compare with other Texas prescribers?
Of the 56 medications with a state comparison, Dr. Naquin-Chappel prescribes 22 more often than the typical Texas prescriber, 15 about as often and 19 less often. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Dr. Naquin-Chappel prescribes?
No. It covers prescriptions filled by people with Medicare Part D drug coverage in 2024, and CMS leaves out any medication with fewer than 11 prescriptions.
About this data
This page shows one provider’s slice of public Medicare files. NPI Profile does not receive prescriptions or patient records.
| Source | What it provides here | Data year |
|---|---|---|
| CMS Medicare Part D Prescribers by Provider and Drug | Each medication, prescriptions, patients, 30-day fills, days of medication and cost. State comparisons average the Texas prescribers of the same medication and form, where at least five wrote it. | 2024 (released 2026, the most recent available) |
| CMS Medicare Part D Drug Spending Dashboard | What each medication is used for. | 2024 |
- Only prescriptions filled by people with Medicare Part D drug coverage are counted. Private insurance, Medicaid and cash purchases are not.
- CMS leaves out medications with fewer than 11 prescriptions and hides patient counts under 11.
- Cost per fill is what the plan and the patient paid the pharmacy together, not what you pay at the counter.
- Medication descriptions are summaries from CMS. They are not medical advice; ask a health care professional about any medication.
