Michael R. Hahn II, M.D.
NPI 1891784237ActiveIndividual· Neurological Surgery· Oklahoma City, OK
Neurological Surgery (M.D.) in Oklahoma City, Oklahoma, trained at University of Oklahoma College of Medicine (class of 1992). 657 Medicare patients in 2024, $319,567 paid; all of their 360 Part D prescriptions were generic. Medtronic, Inc. was the largest of 2 companies reporting payments in 2025, $759.51 in all, mostly food and beverage.
Overview
| NPI | 1891784237 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Oct 18, 2005 |
| Last updated in NPPES | Mar 13, 2023 |
| Certified by provider | Mar 13, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Neurological Surgery Primary | 207T00000X | 18431 | OK |
| Specialist | 174400000X | 18431 | 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 - Neurosurgery (OK) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 657 |
|---|---|
| Services billed | 1,801 across 73 procedure codes |
| Paid by Medicare | $319,567 |
Part D prescriptions in 2024
| Prescriptions (claims) | 360 · 367 30-day fills |
|---|---|
| Patients | 151 |
| Total drug cost | $4,119 |
| Generic share | 100% of claims |
Education and affiliations
| Medical school | University of Oklahoma College of Medicine |
|---|---|
| Graduation year | 1992 |
| Medicare specialty | Neurosurgery |
Medical group
- Saints Medical Group, LLCOklahoma City, OK · 435 clinicians
Hospital affiliations
- Duncan Regional Hospital, IncDuncan, OK
- Memorial HealthLawton, OK
- Ssm Health St Anthony Hospital - MidwestMidwest City, OK
- Ssm Health St Anthony Hospital - Oklahoma CityOklahoma City, OK
- Ssm Health St Anthony Hospital - ShawneeShawnee, OK
Other facilities
- Ssm Health at Home Home Health - OklahomaHome health agency · Oklahoma City, OK
Industry payments (Open Payments)
- 2025$759.51 · 16 payments from 2 companies
- 2024$622.89 · 18 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $740.13 | 15 |
| Vertex Pharmaceuticals Incorporated | $19.38 | 1 |
What the 2025 payments were for
- Food and Beverage$759.51 · 16 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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