Samuel Andrew Johnson, MD
NPI 1225255128ActiveIndividual· Internal Medicine, Nephrology· Marietta, GA
Internal Medicine, Nephrology (MD) in Marietta, Georgia, trained at Temple University School of Medicine (class of 2002). In 2024 Medicare paid $333,203 for 805 patients, and Part D covered 1,533 of their prescriptions, 87% of them generic. Novartis Pharmaceuticals Corporation was the largest of 11 companies reporting payments in 2025, $504.34 in all, mostly food and beverage.
Overview
| NPI | 1225255128 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 20, 2007 |
| Last updated in NPPES | Aug 1, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 54909 | GA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Nephrology (GA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 805 |
|---|---|
| Services billed | 4,183 across 70 procedure codes |
| Paid by Medicare | $333,203 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,533 · 3,518 30-day fills |
|---|---|
| Patients | 255 |
| Total drug cost | $320,307 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | Temple University School of Medicine |
|---|---|
| Graduation year | 2002 |
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
Medical groups
- Georgia Kidney Associates, Inc.Marietta, GA · 16 clinicians
- Preferred Vascular Services Northwest LLCMarietta, GA · 12 clinicians
Hospital affiliations
- Northside Hospital CherokeeCanton, GA
- Wellstar Cobb Medical CenterAustell, GA
- Wellstar Kennestone Regional Medical CenterMarietta, GA
Other facilities
- Fmc Renal Care Center of North Georgia BmaDialysis facility · Canton, GA
- Amedisys Northwest Home HealthHome health agency · Jasper, GA
- Wellstar Windy Hill HospitalLong-term care hospital · Marietta, GA
Industry payments (Open Payments)
- 2025$504.34 · 22 payments from 11 companies
- 2024$448.44 · 20 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novartis Pharmaceuticals Corporation | $121.47 | 5 |
| Mallinckrodt Hospital Products Inc. | $67.34 | 3 |
| Astrazeneca Pharmaceuticals LP | $66.47 | 3 |
| Otsuka America Pharmaceutical, Inc. | $61.22 | 3 |
| Nxstage Medical, Inc. | $54.02 | 1 |
What the 2025 payments were for
- Food and Beverage$504.34 · 22 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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