John A. Tenbrook, Jr., M.D.
NPI 1902846439ActiveIndividual· Internal Medicine· Braintree, MA
Internal Medicine (M.D.) in Braintree, Massachusetts, trained at Geisel School of Medicine at Dartmouth (class of 1996). In 2024 Medicare paid $83,411 for 403 patients, and Part D covered 320 of their prescriptions, 87% of them generic.
Overview
| NPI | 1902846439 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 6, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 209991 | 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 - Hospitalist (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 403 |
|---|---|
| Services billed | 1,027 across 14 procedure codes |
| Paid by Medicare | $83,411 |
Part D prescriptions in 2024
| Prescriptions (claims) | 320 · 329 30-day fills |
|---|---|
| Patients | 154 |
| Total drug cost | $22,204 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | Geisel School of Medicine at Dartmouth |
|---|---|
| Graduation year | 1996 |
| Medicare specialty | Hospitalist |
| Secondary specialties | Internal Medicine |
Medical group
- Coastal Medical AssociatesWeymouth, MA · 443 clinicians
Hospital affiliation
- South Shore HospitalSouth Weymouth, 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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All 39 internal medicine physicians in Braintree · All internal medicine physicians in Massachusetts