Geoffrey Walker, MD
NPI 1306890058ActiveIndividual· Internal Medicine, Nephrology· Irving, TX
Internal Medicine, Nephrology (MD) in Irving, Texas, licensed in TX, with an NPI issued in May 2006. Part D covered 13 prescriptions written in 2024, 92% of them generic. Cormedix Inc. was the largest of 6 companies reporting payments in 2025, $19,817 in all, mostly consulting fees.
Overview
| NPI | 1306890058 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 19, 2006 |
| Last updated in NPPES | May 6, 2021 |
| Certified by provider | May 6, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | F5791 | TX |
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 (TX) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 13 · 37 30-day fills |
|---|---|
| Total drug cost | $501.60 |
| Generic share | 92% of claims |
Industry payments (Open Payments)
- 2025$19,817 · 14 payments from 6 companies
- 2024$481.57 · 5 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Cormedix Inc. | $15,562 | 2 |
| Fresenius USA Marketing, Inc. | $3,797 | 6 |
| Nxstage Medical, Inc. | $237.78 | 2 |
| Akebia Therapeutics Inc | $158.29 | 2 |
| Novartis Pharmaceuticals Corporation | $33.16 | 1 |
What the 2025 payments were for
- Consulting Fee$17,962 · 3 payments
- Food and Beverage$981.22 · 7 payments
- Travel and Lodging$853.21 · 3 payments
- Education$21.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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