Charmian Darryl Cohen, M.D.
NPI 1003929043ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Riverhead, NY
Internal Medicine, Endocrinology, Diabetes & Metabolism (M.D.) in Riverhead, New York, licensed in NY, with an NPI issued in August 2006. Their prescriptions cost Medicare Part D more than their services did: $211,208 for 724 claims, against $21,792 paid for services in 2024. Amgen Inc. reported $24.26 in payments in 2025, mostly education.
Overview
| NPI | 1003929043 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Aug 16, 2006 |
| Last updated in NPPES | May 9, 2025 |
| Certified by provider | May 9, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | 161564-1 | NY |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 37 |
|---|---|
| Services billed | 199 across 4 procedure codes |
| Paid by Medicare | $21,792 |
Part D prescriptions in 2024
| Prescriptions (claims) | 724 · 1,502 30-day fills |
|---|---|
| Patients | 91 |
| Total drug cost | $211,208 |
| Generic share | 43% of claims |
Education and affiliations
| Graduation year | 1977 |
|---|---|
| Medicare specialty | Internal Medicine |
| Secondary specialties | Endocrinology |
| Telehealth | Offers telehealth |
Industry payments (Open Payments)
- 2025$24.26 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $24.26 | 1 |
What the 2025 payments were for
- Education$24.26 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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