Peter R. Graze, M.D.
NPI 1669400784ActiveIndividual· Internal Medicine, Hematology & Oncology· Annapolis, MD
Internal Medicine, Hematology & Oncology (M.D.) in Annapolis, Maryland, trained at Harvard Medical School (class of 1971). In 2024 Medicare paid $2,494,527 for 528 patients, and Part D covered 871 of their prescriptions, 64% of them generic. Novartis Pharmaceuticals Corporation was the largest of 25 companies reporting payments in 2025, $1,236 in all, mostly food and beverage.
Overview
| NPI | 1669400784 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 29, 2006 |
| Last updated in NPPES | Dec 3, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | D0016364 | MD |
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 - Hematology/Oncology (MD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 528 |
|---|---|
| Services billed | 119,576 across 146 procedure codes |
| Paid by Medicare | $2,494,527 |
Part D prescriptions in 2024
| Prescriptions (claims) | 871 · 1,575 30-day fills |
|---|---|
| Patients | 107 |
| Total drug cost | $3,659,236 |
| Generic share | 64% of claims |
Education and affiliations
| Medical school | Harvard Medical School |
|---|---|
| Graduation year | 1971 |
| Medicare specialty | Hematology/Oncology |
| Telehealth | Offers telehealth |
Medical group
- Maryland Oncology Hematology PAColumbia, MD · 104 clinicians
Hospital affiliation
- Luminis Health Anne Arundel Medical Center, IncAnnapolis, MD
Industry payments (Open Payments)
- 2025$1,236 · 49 payments from 25 companies
- 2024$1,407 · 52 payments from 29 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novartis Pharmaceuticals Corporation | $164.77 | 8 |
| Abbvie Inc. | $150.77 | 7 |
| Janssen Biotech, Inc. | $99.35 | 3 |
| Pfizer Inc. | $94.75 | 4 |
| Astrazeneca Pharmaceuticals LP | $84.40 | 3 |
What the 2025 payments were for
- Food and Beverage$1,236 · 49 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 20 hematologist-oncologists in Annapolis · All hematologist-oncologists in Maryland