Larry Walker, M.D.
NPI 1538140587ActiveIndividual· Internal Medicine, Nephrology· Huntsville, AL
Internal Medicine, Nephrology (M.D.) in Huntsville, Alabama, trained at University of Wisconsin School of Medicine (class of 1996). 962 Medicare patients in 2024, $242,009 paid; nearly all of their 882 Part D prescriptions were generic (90%). Novartis Pharmaceuticals Corporation was the largest of 5 companies reporting payments in 2025, $458.82 in all, mostly food and beverage.
Overview
| NPI | 1538140587 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Nov 8, 2005 |
| Last updated in NPPES | Aug 11, 2020 |
| Certified by provider | Aug 11, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 21290 | AL |
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 (AL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 962 |
|---|---|
| Services billed | 3,157 across 22 procedure codes |
| Paid by Medicare | $242,009 |
Part D prescriptions in 2024
| Prescriptions (claims) | 882 · 2,181 30-day fills |
|---|---|
| Patients | 247 |
| Total drug cost | $111,501 |
| Generic share | 90% of claims |
Education and affiliations
| Medical school | University of Wisconsin School of Medicine |
|---|---|
| Graduation year | 1996 |
| Medicare specialty | Nephrology |
| Telehealth | Offers telehealth |
Medical group
- Huntsville Renal Clinic, PCHuntsville, AL · 15 clinicians
Hospital affiliations
- Athens Limestone HospitalAthens, AL
- Crestwood Medical CenterHuntsville, AL
- Highlands Medical CenterScottsboro, AL
- Huntsville HospitalHuntsville, AL
- Marshall Medical CentersBoaz, AL
Other facilities
- Endeavor DialysisDialysis facility · Huntsville, AL
- Fmc Huntsville HomeDialysis facility · Huntsville, AL
- Fmc Odyssey DialysisDialysis facility · Madison, AL
- Fmc TranquilityDialysis facility · Meridianville, AL
- Fmc West MadisonDialysis facility · Madison, AL
Industry payments (Open Payments)
- 2025$458.82 · 16 payments from 5 companies
- 2024$283.03 · 4 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novartis Pharmaceuticals Corporation | $225.41 | 9 |
| Medtronic, Inc. | $116.23 | 1 |
| Amgen Inc. | $66.08 | 3 |
| Novo Nordisk Inc | $35.66 | 2 |
| Mallinckrodt Hospital Products Inc. | $15.44 | 1 |
What the 2025 payments were for
- Food and Beverage$458.82 · 16 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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