Biju Marath, M.D.
NPI 1629234463ActiveIndividual· Internal Medicine, Nephrology· Gulfport, MS
Internal Medicine, Nephrology (M.D.) with South Mississippi Nephrology, PLLC, practicing in Gulfport, Mississippi. In 2024 Medicare paid $219,666 for 378 patients, and Part D covered 907 of their prescriptions, 82% of them generic. Mallinckrodt Hospital Products Inc. was the largest of 11 companies reporting payments in 2025, $472.74 in all, mostly food and beverage. Lists Memorial Hospital at Gulfport and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1629234463 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 31, 2008 |
| Last updated in NPPES | May 24, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 22003 | MS |
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 - Nephrology (MS) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 378 |
|---|---|
| Services billed | 1,936 across 18 procedure codes |
| Paid by Medicare | $219,666 |
Part D prescriptions in 2024
| Prescriptions (claims) | 907 · 1,584 30-day fills |
|---|---|
| Patients | 175 |
| Total drug cost | $223,152 |
| Generic share | 82% of claims |
Education and affiliations
| Graduation year | 2000 |
|---|---|
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
Medical group
- South Mississippi Nephrology, PLLCGulfport, MS · 10 clinicians
Hospital affiliations
- Memorial Hospital at GulfportGulfport, MS
- Memorial Hospital BiloxiBiloxi, MS
- Ochsner Medical Center-HancockBay Saint Louis, MS
- Singing River GulfportGulfport, MS
Other facilities
- Fmc Bay St Louis S. Ms Kidney CtrDialysis facility · Diamondhead, MS
- Fmc North GulfportDialysis facility · Gulfport, MS
- North Gulfport Home ProgramDialysis facility · Gulfport, MS
Industry payments (Open Payments)
- 2025$472.74 · 23 payments from 11 companies
- 2024$913.02 · 41 payments from 13 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Mallinckrodt Hospital Products Inc. | $115.10 | 6 |
| Novo Nordisk Inc | $76.56 | 3 |
| Otsuka America Pharmaceutical, Inc. | $72.82 | 3 |
| Novartis Pharmaceuticals Corporation | $56.34 | 2 |
| Opko Pharmaceuticals, LLC | $38.45 | 2 |
What the 2025 payments were for
- Food and Beverage$469.42 · 21 payments
- Education$3.32 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All Internal Medicine, Nephrology providers in Mississippi →