Samuel Thomas Johnston, MD
NPI 1073193124ActiveIndividual· Internal Medicine· Birmingham, AL
Internal Medicine (MD) in Birmingham, Alabama, trained at University of Alabama School of Medicine (class of 2020). Part D covered 149 prescriptions written in 2024, 93% of them generic. Novartis Pharmaceuticals Corporation was the largest of 6 companies reporting payments in 2025, $583.25 in all, mostly food and beverage.
Overview
| NPI | 1073193124 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 13, 2021 |
| Last updated in NPPES | Jan 26, 2026 |
| Certified by provider | Jan 26, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | MD.44901 | AL |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 (AL); Practitioner - Nephrology (MS) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 149 · 363 30-day fills |
|---|---|
| Patients | 28 |
| Total drug cost | $4,627 |
| Generic share | 93% of claims |
Education and affiliations
| Medical school | University of Alabama School of Medicine |
|---|---|
| Graduation year | 2020 |
| Medicare specialty | Hospitalist |
Medical group
- Oak Mountain Group Services, LLCBirmingham, AL · 61 clinicians
Hospital affiliations
- Grandview Medical CenterBirmingham, AL
- North Mississippi Medical CenterTupelo, MS
Industry payments (Open Payments)
- 2025$583.25 · 7 payments from 6 companies
- 2024$332.94 · 8 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novartis Pharmaceuticals Corporation | $209.61 | 2 |
| Genzyme Corporation | $117.16 | 1 |
| Mallinckrodt Hospital Products Inc. | $102.44 | 1 |
| Vantive US Healthcare LLC | $101.78 | 1 |
| Calliditas Therapeutics US Inc. | $37.05 | 1 |
What the 2025 payments were for
- Food and Beverage$583.25 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 574 internal medicine physicians in Birmingham · All internal medicine physicians in Alabama