DR. PETER W. COHEN M.D.
Prescription History 1962462721
Psychiatry & Neurology - Psychiatry in Arlington, MA
What does Dr. Cohen prescribe?
In 2024, Dr. Cohen wrote 62 Medicare prescriptions for 4 medications. The most prescribed was Haloperidol Decanoate, with 17 prescriptions.
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. Cohen prescribes.
Medications 4 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 Massachusetts prescribers.
What it is used for
This medication is used to treat a certain mental/mood disorder (schizophrenia).
Compared with Massachusetts prescribers
Dr. Cohen wrote 17 prescriptions for Haloperidol Decanoate, about 64% as often as the typical Massachusetts prescriber of it (26). Medicare paid $45.83 per fill, versus $37.29 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
Benztropine is used to treat symptoms of Parkinson's disease or involuntary movements due to the side effects of certain psychiatric drugs (antipsychotics such as chlorpromazine/haloperidol).
Compared with Massachusetts prescribers
Dr. Cohen wrote 16 prescriptions for Benztropine Mesylate, about 33% as often as the typical Massachusetts prescriber of it (49). Medicare paid $15.51 per fill, versus $12.97 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 anxiety.
Compared with Massachusetts prescribers
Dr. Cohen wrote 15 prescriptions for Lorazepam, about 25% as often as the typical Massachusetts prescriber of it (60). Medicare paid $7.42 per fill, versus $6.11 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
This medication is used to treat certain mental/mood disorders (such as schizophrenia, schizoaffective disorders).
Compared with Massachusetts prescribers
Dr. Cohen wrote 14 prescriptions for Haloperidol, about 38% as often as the typical Massachusetts prescriber of it (37). Medicare paid $44.28 per fill, versus $24.73 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. Cohen’s prescriptions
What does Dr. Cohen prescribe most?
In 2024 Medicare Part D data, Dr. Cohen's most prescribed medications were Haloperidol Decanoate (17), Benztropine Mesylate (16) and Lorazepam (15).
How does Dr. Cohen's prescribing compare with other Massachusetts prescribers?
Of the 4 medications with a state comparison, Dr. Cohen prescribes 4 less often than the typical Massachusetts prescriber. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Dr. Cohen 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 Massachusetts 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.
