James Regis Madison, DO
NPI 1447231311ActiveIndividual· Internal Medicine, Nephrology· Tahlequah, OK
Internal Medicine, Nephrology (DO) in Tahlequah, Oklahoma, trained at Kansas City University of Physicians and Surgeons (class of 2001). 198 Medicare patients in 2024, $44,646 paid; nearly all of their 379 Part D prescriptions were generic (92%). Madrigal Pharmaceuticals was the largest of 2 companies reporting payments in 2025, $177.80 in all, mostly food and beverage.
Overview
| NPI | 1447231311 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Nov 8, 2005 |
| Last updated in NPPES | May 13, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 4485 | OK |
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 - Internal Medicine (HI); Practitioner - Internal Medicine (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 198 |
|---|---|
| Services billed | 666 across 10 procedure codes |
| Paid by Medicare | $44,646 |
Part D prescriptions in 2024
| Prescriptions (claims) | 379 · 389 30-day fills |
|---|---|
| Patients | 174 |
| Total drug cost | $22,053 |
| Generic share | 92% of claims |
Education and affiliations
| Medical school | Kansas City University of Physicians and Surgeons |
|---|---|
| Graduation year | 2001 |
| Medicare specialty | Internal Medicine |
Medical group
- Midpacific Hospitalists LLCKamuela, HI · 11 clinicians
Hospital affiliation
- North Hawaii Community Hospital, IncKamuela, HI
Industry payments (Open Payments)
- 2025$177.80 · 2 payments from 2 companies
- 2024$13.56 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Madrigal Pharmaceuticals | $149.66 | 1 |
| Abbvie Inc. | $28.14 | 1 |
What the 2025 payments were for
- Food and Beverage$177.80 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Nephrology providers in Tahlequah
- 1063725901