DR. DOUGLAS C. NATHANSON MD
Prescription History 1679679484
Psychiatry & Neurology - Neurology in Iowa City, IA
What does Dr. Nathanson prescribe?
In 2024, Dr. Nathanson wrote 68 Medicare prescriptions for 3 medications. The most prescribed was Gabapentin, with 37 prescriptions for 11 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. Nathanson prescribes.
Medications 3 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 Iowa prescribers.
What it is used for
Gabapentin is used with other medications to prevent and control seizures.
Compared with Iowa prescribers
Dr. Nathanson wrote 37 prescriptions for Gabapentin, about 39% as often as the typical Iowa prescriber of it (96). Medicare paid $13.08 per fill, versus $16.77 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 Iowa prescribers
Dr. Nathanson wrote 20 prescriptions for Donepezil Hcl, about 37% as often as the typical Iowa prescriber of it (54). Medicare paid $6.72 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
Memantine is used to treat moderate to severe confusion (dementia) related to Alzheimer's disease.
Compared with Iowa prescribers
Dr. Nathanson wrote 11 prescriptions for Memantine Hcl, about 23% as often as the typical Iowa prescriber of it (47). Medicare paid $10.92 per fill, versus $33.09 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. Nathanson’s prescriptions
What does Dr. Nathanson prescribe most?
In 2024 Medicare Part D data, Dr. Nathanson's most prescribed medications were Gabapentin (37), Donepezil Hcl (20) and Memantine Hcl (11).
How does Dr. Nathanson's prescribing compare with other Iowa prescribers?
Of the 3 medications with a state comparison, Dr. Nathanson prescribes 3 less often than the typical Iowa prescriber. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Dr. Nathanson 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 Iowa 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.
