John R. Lamb, M.D.
NPI 1679552467ActiveIndividual· Internal Medicine· Oak Bluffs, MA
Internal Medicine (M.D.) in Oak Bluffs, Massachusetts, trained at State University of New York at Buffalo School of Medicine (class of 1979). Their prescriptions cost Medicare Part D more than their services did: $377,342 for 5,488 claims, against $653.50 paid for services in 2024.
Overview
| NPI | 1679552467 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jan 11, 2006 |
| Last updated in NPPES | May 10, 2022 |
| Certified by provider | May 10, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 226239 | 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 - Internal Medicine (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 70 |
|---|---|
| Services billed | 98 across 2 procedure codes |
| Paid by Medicare | $653.50 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,488 · 12,320 30-day fills |
|---|---|
| Patients | 425 |
| Total drug cost | $377,342 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | State University of New York at Buffalo School of Medicine |
|---|---|
| Graduation year | 1979 |
| Medicare specialty | Internal Medicine |
Medical group
- Martha's Vineyard Hospital IncOak Bluffs, MA · 155 clinicians
Hospital affiliation
- Martha's Vineyard Hospital IncOak Bluffs, MA
Other facilities
- Vna of Cape CodHome health agency · South Dennis, MA
- Hospice and Palliative Care of Martha's VineyardHospice · Vineyard Haven, MA
- Visiting Nurse Association of Cape Cod HospiceHospice · Hyannis, MA
- Navigator Homes of Martha's VineyardNursing home · Edgartown, MA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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