Gary M. Davis, MD
NPI 1912065251ActiveIndividual· Internal Medicine, Nephrology· Jackson, MS
Internal Medicine, Nephrology (MD) in Jackson, Mississippi, trained at Meharry Medical College School of Medicine (class of 1982). Their prescriptions cost Medicare Part D more than their services did: $255,513 for 844 claims, against $92,721 paid for services in 2024. Mallinckrodt Hospital Products Inc. was the largest of 2 companies reporting payments in 2025, $40.85 in all, mostly food and beverage.
Overview
| NPI | 1912065251 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Dec 5, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 11174 | MS |
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 (MS) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 81 |
|---|---|
| Services billed | 526 across 8 procedure codes |
| Paid by Medicare | $92,721 |
Part D prescriptions in 2024
| Prescriptions (claims) | 844 · 1,099 30-day fills |
|---|---|
| Patients | 104 |
| Total drug cost | $255,513 |
| Generic share | 70% of claims |
Education and affiliations
| Medical school | Meharry Medical College School of Medicine |
|---|---|
| Graduation year | 1982 |
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
Medical group
- Diversified Renal Group LLCJackson, MS · 5 clinicians
Other facilities
- Drg FayetteDialysis facility · Fayette, MS
Industry payments (Open Payments)
- 2025$40.85 · 2 payments from 2 companies
- 2024$257.08 · 8 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Mallinckrodt Hospital Products Inc. | $22.63 | 1 |
| Bayer Healthcare Pharmaceuticals Inc. | $18.22 | 1 |
What the 2025 payments were for
- Food and Beverage$40.85 · 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 →