William Graff, M.D.
NPI 1801872825ActiveIndividual· Internal Medicine, Cardiovascular Disease· Manchester, NH
Internal Medicine, Cardiovascular Disease (M.D.) with Parkland Physician Services Inc and 1 other group, practicing in Manchester, New Hampshire. Their prescriptions cost Medicare Part D more than their services did: $484,040 for 3,024 claims, against $78,328 paid for services in 2024. Baxter Healthcare was the largest of 4 companies reporting payments in 2025, $208.98 in all, mostly food and beverage. Lists Catholic Medical Center and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1801872825 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Dec 21, 2005 |
| Last updated in NPPES | Mar 15, 2021 |
| Certified by provider | Mar 15, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | 8159 | NH |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| 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 - Cardiovascular Disease (Cardiology) (NH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,060 |
|---|---|
| Services billed | 1,874 across 38 procedure codes |
| Paid by Medicare | $78,328 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,024 · 7,600 30-day fills |
|---|---|
| Patients | 566 |
| Total drug cost | $484,040 |
| Generic share | 85% of claims |
Education and affiliations
| Graduation year | 1982 |
|---|---|
| Medicare specialty | Cardiovascular Disease (Cardiology) |
Medical groups
- Parkland Physician Services IncDerry, NH · 19 clinicians
- HCA Health Services of New Hampshire IncDerry, NH · 7 clinicians
Hospital affiliations
- Catholic Medical CenterManchester, NH
- Elliot HospitalManchester, NH
- Mary Hitchcock Memorial HospitalLebanon, NH
- Parkland Medical CenterDerry, NH
- Portsmouth Regional HospitalPortsmouth, NH
Industry payments (Open Payments)
- 2025$208.98 · 6 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Baxter Healthcare | $123.00 | 2 |
| Stryker Corporation | $34.04 | 2 |
| Lantheus Medical Imaging, Inc. | $29.20 | 1 |
| Boston Scientific Corporation | $22.74 | 1 |
What the 2025 payments were for
- Food and Beverage$208.98 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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