Stephen C. Cohen, DO.
Internal Medicine, Nephrology (DO.) in Trenton, New Jersey, trained at Philadelphia College of Osteopathic Medicine (class of 1996). Their prescriptions cost Medicare Part D more than their services did: $296,052 for 993 claims, against $173,990 paid for services in 2024. Amgen Inc. was the largest of 8 companies reporting payments in 2025, $418.99 in all, mostly food and beverage. A record with the same name and state is on the OIG exclusion list; it carries no NPI, so check it before acting.
Overview
| NPI | 1659301166 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO. |
| Sole proprietor | No |
| NPI issued | Jul 3, 2006 |
| Last updated in NPPES | Sep 21, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | MD066248 | NJ |
| Internal Medicine, Nephrology | 207RN0300X | MD66248 | NJ |
Exclusion screening
Possible match: verify before acting. The OIG list has a record with the same name in New Jersey, but that record carries no NPI, so it may be a different person or business.
| Matched by | Name on OIG list | Exclusion type | Excluded since | Location |
|---|---|---|---|---|
| Name + state | Stephen Cohen · Podiatry | 1128a1 | Aug 9, 1985 | Margate City, NJ |
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | Possible (name) | See above |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Nephrology (NJ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 319 |
|---|---|
| Services billed | 1,706 across 17 procedure codes |
| Paid by Medicare | $173,990 |
Part D prescriptions in 2024
| Prescriptions (claims) | 993 · 1,947 30-day fills |
|---|---|
| Patients | 180 |
| Total drug cost | $296,052 |
| Generic share | 90% of claims |
Education and affiliations
| Medical school | Philadelphia College of Osteopathic Medicine |
|---|---|
| Graduation year | 1996 |
| Medicare specialty | Nephrology |
Medical group
- Mercer Medical AssociatesTrenton, NJ · 4 clinicians
Hospital affiliations
- Capital Health Medical Center - HopewellPennington, NJ
- Capital Health Regional Medical CenterTrenton, NJ
- Robert Wood Johnson University Hospital at HamiltonHamilton, NJ
Other facilities
- Davita Renal Center of HamiltonDialysis facility · Hamilton Township, NJ
- Fmc Hamilton SquareDialysis facility · Hamilton, NJ
- Fmc PrincetonDialysis facility · Princeton, NJ
- H. Fuld Capital HealthDialysis facility · Trenton, NJ
Industry payments (Open Payments)
- 2025$418.99 · 18 payments from 8 companies
- 2024$372.70 · 27 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $115.99 | 1 |
| Novartis Pharmaceuticals Corporation | $79.51 | 5 |
| Calliditas Therapeutics US Inc. | $75.90 | 4 |
| Bayer Healthcare Pharmaceuticals Inc. | $48.69 | 3 |
| Fresenius USA Marketing, Inc. | $34.28 | 2 |
What the 2025 payments were for
- Food and Beverage$418.99 · 18 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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