Derek A. Irwin, MD
NPI 1184603300ActiveIndividual· Pathology, Anatomic Pathology & Clinical Pathology· Oklahoma City, OK
Pathology, Anatomic Pathology & Clinical Pathology (MD) in Oklahoma City, Oklahoma, trained at University of Oklahoma College of Medicine (class of 1995). Medicare paid $27,736 for services to 385 patients in 2024. Caris Mpi, Inc. reported $29.17 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1184603300 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jan 16, 2006 |
| Last updated in NPPES | Jul 1, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Pathology, Anatomic Pathology & Clinical Pathology Primary | 207ZP0102X | 19794 | 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 - Pathology (OK) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 385 |
|---|---|
| Services billed | 976 across 16 procedure codes |
| Paid by Medicare | $27,736 |
Education and affiliations
| Medical school | University of Oklahoma College of Medicine |
|---|---|
| Graduation year | 1995 |
| Medicare specialty | Pathology |
Medical groups
- Diagnostic Pathology Services, Inc.Oklahoma City, OK · 9 clinicians
- Pathology Consultation Services IncNorman, OK · 5 clinicians
Hospital affiliations
- Integris Baptist Medical Center, IncOklahoma City, OK
- Integris Canadian Valley HospitalYukon, OK
- Norman RegionalNorman, OK
- O U Medical CenterOklahoma City, OK
Industry payments (Open Payments)
- 2025$29.17 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Caris Mpi, Inc. | $29.17 | 1 |
What the 2025 payments were for
- Food and Beverage$29.17 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 85 pathologists in Oklahoma City · All pathologists in Oklahoma