Garrett Clark Martin, M.D.
NPI 1083648596ActiveIndividual· Internal Medicine· Detroit, MI
Internal Medicine (M.D.) in Detroit, Michigan, trained at Meharry Medical College School of Medicine (class of 2001). In 2024 Medicare paid $209,446 for 537 patients, and Part D covered 303 of their prescriptions, 87% of them generic. Merck Sharp & Dohme LLC was the largest of 3 companies reporting payments in 2025, $238.33 in all, mostly food and beverage.
Overview
| NPI | 1083648596 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 10, 2006 |
| Last updated in NPPES | Aug 12, 2025 |
| Certified by provider | Aug 12, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | D67934 | MD |
| Hospitalist | 208M00000X | D67934 | 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 - Internal Medicine (DC); Practitioner - Internal Medicine (GA); Practitioner - Hospitalist (MD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 537 |
|---|---|
| Services billed | 2,279 across 13 procedure codes |
| Paid by Medicare | $209,446 |
Part D prescriptions in 2024
| Prescriptions (claims) | 303 · 327 30-day fills |
|---|---|
| Patients | 110 |
| Total drug cost | $12,406 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | Meharry Medical College School of Medicine |
|---|---|
| Graduation year | 2001 |
| Medicare specialty | Hospitalist |
| Secondary specialties | Internal Medicine |
Medical groups
- Galen Inpatient Physicians PCHanford, CA · 1,077 clinicians
- Synergy Medical Group LLCHyattsville, MD · 109 clinicians
Hospital affiliation
- Holy Cross HospitalSilver Spring, MD
Other facilities
- Frederick Health HospiceHospice · Frederick, MD
- Sterling Care BethesdaNursing home · Bethesda, MD
Industry payments (Open Payments)
- 2025$238.33 · 6 payments from 3 companies
- 2024$407.02 · 10 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $152.78 | 3 |
| Pfizer Inc. | $61.40 | 2 |
| Smith+nephew, Inc. | $24.15 | 1 |
What the 2025 payments were for
- Food and Beverage$238.33 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 750 internal medicine physicians in Detroit · All internal medicine physicians in Michigan