Gajapathiraju Chamarthi, M.D
NPI 1902175649ActiveIndividual· Internal Medicine, Nephrology· Mobile, AL
Internal Medicine, Nephrology (M.D) with Nephrology Associates of Mobile, P.A., practicing in Mobile, Alabama. Their prescriptions cost Medicare Part D more than their services did: $171,087 for 532 claims, against $107,264 paid for services in 2024. Amgen Inc. was the largest of 9 companies reporting payments in 2025, $637.50 in all, mostly food and beverage. Lists Mobile Infirmary Medical Center and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1902175649 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D |
| Sole proprietor | No |
| NPI issued | Dec 27, 2011 |
| Last updated in NPPES | Dec 9, 2024 |
| Certified by provider | Dec 9, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 45944 | AL |
| Internal Medicine, Nephrology | 207RN0300X | ME139158 | FL |
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 (AL); Practitioner - Nephrology (MS) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 311 |
|---|---|
| Services billed | 1,398 across 26 procedure codes |
| Paid by Medicare | $107,264 |
Part D prescriptions in 2024
| Prescriptions (claims) | 532 · 1,020 30-day fills |
|---|---|
| Patients | 146 |
| Total drug cost | $171,087 |
| Generic share | 73% of claims |
Education and affiliations
| Graduation year | 2005 |
|---|---|
| Medicare specialty | Nephrology |
Medical group
- Nephrology Associates of Mobile, P.A.Mobile, AL · 41 clinicians
Hospital affiliations
- Mobile Infirmary Medical CenterMobile, AL
- North Baldwin InfirmaryBay Minette, AL
- Springhill Medical CenterMobile, AL
- USA Health HCA Providence Hospital, LLCMobile, AL
- USA Health University HospitalMobile, AL
Other facilities
- Fmc Dauphin Island PkwyDialysis facility · Mobile, AL
- Fmc ThomasvilleDialysis facility · Thomasville, AL
Industry payments (Open Payments)
- 2025$637.50 · 37 payments from 9 companies
- 2024$939.58 · 39 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $295.70 | 17 |
| Calliditas Therapeutics US Inc. | $147.72 | 10 |
| Travere Therapeutics, Inc. | $68.04 | 3 |
| Novartis Pharmaceuticals Corporation | $29.08 | 1 |
| Astrazeneca Pharmaceuticals LP | $27.33 | 2 |
What the 2025 payments were for
- Food and Beverage$636.70 · 36 payments
- Education$0.80 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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