Mark Leo Graham II, M.D.
NPI 1760481667ActiveIndividual· Internal Medicine, Hematology & Oncology· Cary, NC
Internal Medicine, Hematology & Oncology (M.D.) in Cary, North Carolina, trained at Mayo Medical School (class of 1982). Their prescriptions cost Medicare Part D more than their services did: $4,290,469 for 2,588 claims, against $104,421 paid for services in 2024. Merck Sharp & Dohme LLC reported $25.70 in payments in 2025, mostly education.
Overview
| NPI | 1760481667 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 21, 2005 |
| Last updated in NPPES | Nov 9, 2022 |
| Certified by provider | Jul 2, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 39812 | NC |
| Internal Medicine | 207R00000X | 39812 | NC |
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 - Hematology/Oncology (NC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 524 |
|---|---|
| Services billed | 1,422 across 17 procedure codes |
| Paid by Medicare | $104,421 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,588 · 4,482 30-day fills |
|---|---|
| Patients | 418 |
| Total drug cost | $4,290,469 |
| Generic share | 82% of claims |
Education and affiliations
| Medical school | Mayo Medical School |
|---|---|
| Graduation year | 1982 |
| Medicare specialty | Hematology/Oncology |
| Telehealth | Offers telehealth |
Medical group
- Wakemed Specialists Group LLCCary, NC · 876 clinicians
Hospital affiliations
- Rex HospitalRaleigh, NC
- Wakemed, Cary HospitalCary, NC
- Wakemed, Raleigh CampusRaleigh, NC
Industry payments (Open Payments)
- 2025$25.70 · 1 payment from 1 company
- 2024$186.73 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $25.70 | 1 |
What the 2025 payments were for
- Education$25.70 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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