Mark Gregory Sperry, M.D.
NPI 1376773754ActiveIndividual· Internal Medicine· Boston, MA
Internal Medicine (M.D.) with Washington Physician Services, practicing in Boston, Massachusetts. Their prescriptions cost Medicare Part D more than their services did: $886,929 for 3,110 claims, against $33,214 paid for services in 2024. Merck Sharp & Dohme LLC reported $24.10 in payments in 2025, mostly food and beverage. Lists Upmc Greene and 1 other hospital as hospital affiliations.
Overview
| NPI | 1376773754 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jul 20, 2009 |
| Last updated in NPPES | Jul 20, 2009 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 240907 | MA |
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 - Pulmonary Disease (DC); Practitioner - Pulmonary Disease (PA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 251 |
|---|---|
| Services billed | 585 across 39 procedure codes |
| Paid by Medicare | $33,214 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,110 · 3,451 30-day fills |
|---|---|
| Patients | 346 |
| Total drug cost | $886,929 |
| Generic share | 45% of claims |
Education and affiliations
| Graduation year | 2009 |
|---|---|
| Medicare specialty | Pulmonary Disease |
| Telehealth | Offers telehealth |
Medical group
- Washington Physician ServicesWashington, PA · 106 clinicians
Hospital affiliations
- Upmc GreeneWaynesburg, PA
- Washington Hospital, theWashington, PA
Industry payments (Open Payments)
- 2025$24.10 · 1 payment from 1 company
- 2024$119.93 · 6 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $24.10 | 1 |
What the 2025 payments were for
- Food and Beverage$24.10 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 2,375 internal medicine physicians in Boston · All internal medicine physicians in Massachusetts