Marc D. Irwin, MD
NPI 1972514974ActiveIndividual· Family Medicine· Canyon, TX
Family Medicine (MD) in Canyon, Texas, trained at University of Minnesota Medical School (class of 1988). Their prescriptions cost Medicare Part D more than their services did: $428,752 for 4,000 claims, against $80,672 paid for services in 2024. International Rehabilitative Sciences, Inc was the largest of 3 companies reporting payments in 2025, $74.35 in all, mostly food and beverage.
Overview
| NPI | 1972514974 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 11, 2006 |
| Last updated in NPPES | Dec 31, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | K3255 | 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 - Family Practice (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 209 |
|---|---|
| Services billed | 3,094 across 74 procedure codes |
| Paid by Medicare | $80,672 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,000 · 8,851 30-day fills |
|---|---|
| Patients | 342 |
| Total drug cost | $428,752 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | University of Minnesota Medical School |
|---|---|
| Graduation year | 1988 |
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Medical group
- Fmc Medical Foundation, Inc.Amarillo, TX · 35 clinicians
Hospital affiliation
- Bsa HospitalAmarillo, TX
Industry payments (Open Payments)
- 2025$74.35 · 3 payments from 3 companies
- 2024$108.25 · 6 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| International Rehabilitative Sciences, Inc | $37.96 | 1 |
| Astellas Pharma US Inc | $22.73 | 1 |
| Abbvie Inc. | $13.66 | 1 |
What the 2025 payments were for
- Food and Beverage$74.35 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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