Stephen Gerard Chrzanowski, MD
NPI 1013966647ActiveIndividual· Internal Medicine· West Seneca, NY
Internal Medicine (MD) in West Seneca, New York, trained at New York Medical College (class of 1995). Mostly services rather than prescriptions: Medicare paid $9,794 for 84 patients in 2024, with only 13 Part D claims. Pharmacosmos Therapeutics Inc. was the largest of 2 companies reporting payments in 2025, $58.37 in all, mostly food and beverage.
Overview
| NPI | 1013966647 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 10, 2006 |
| Last updated in NPPES | Nov 23, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 2100441 | 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 | 84 |
|---|---|
| Services billed | 168 across 4 procedure codes |
| Paid by Medicare | $9,794 |
Part D prescriptions in 2024
| Prescriptions (claims) | 13 · 19 30-day fills |
|---|---|
| Total drug cost | $198.59 |
| Generic share | 85% of claims |
Education and affiliations
| Medical school | New York Medical College |
|---|---|
| Graduation year | 1995 |
| Medicare specialty | Internal Medicine |
Medical group
- Mercy Hospital of BuffaloOrchard Park, NY · 196 clinicians
Hospital affiliation
- Mercy Hospital of BuffaloBuffalo, NY
Industry payments (Open Payments)
- 2025$58.37 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pharmacosmos Therapeutics Inc. | $36.61 | 1 |
| Pfizer Inc. | $21.76 | 1 |
What the 2025 payments were for
- Food and Beverage$58.37 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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