William J. Cohn, MD
NPI 1861459208ActiveIndividual· Internal Medicine, Gastroenterology· East Setauket, NY
Internal Medicine, Gastroenterology (MD) in East Setauket, New York, trained at University College of Medicine (class of 1972). In 2024 Medicare paid $133,623 for 534 patients, and Part D covered 376 of their prescriptions, 82% of them generic. Abbvie Inc. was the largest of 8 companies reporting payments in 2025, $253.73 in all, mostly food and beverage.
Overview
| NPI | 1861459208 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 28, 2006 |
| Last updated in NPPES | Sep 20, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 126917 | 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 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Gastroenterology (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 534 |
|---|---|
| Services billed | 2,435 across 31 procedure codes |
| Paid by Medicare | $133,623 |
Part D prescriptions in 2024
| Prescriptions (claims) | 376 · 658 30-day fills |
|---|---|
| Patients | 230 |
| Total drug cost | $64,921 |
| Generic share | 82% of claims |
Education and affiliations
| Medical school | University College of Medicine |
|---|---|
| Graduation year | 1972 |
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
Medical group
- Medical Services of Setauket PCEast Setauket, NY · 15 clinicians
Hospital affiliations
- John T Mather Memorial Hospital of Port JeffersonPort Jefferson, NY
- North Shore University HospitalManhasset, NY
- St Charles HospitalPort Jefferson, NY
- Suny/Stony Brook University HospitalStony Brook, NY
Industry payments (Open Payments)
- 2025$253.73 · 11 payments from 8 companies
- 2024$376.99 · 14 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $70.23 | 3 |
| Lilly USA, LLC | $54.66 | 2 |
| Ardelyx, Inc. | $25.09 | 1 |
| Takeda Pharmaceuticals U.S.A., Inc. | $24.84 | 1 |
| Genzyme Corporation | $23.42 | 1 |
What the 2025 payments were for
- Food and Beverage$253.73 · 11 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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