Ibrahim Halil Sahin, MD
NPI 1902149396ActiveIndividual· Internal Medicine, Hematology & Oncology· Ann Arbor, MI
Internal Medicine, Hematology & Oncology (MD) with Regents of the University of Michigan, practicing in Ann Arbor, Michigan. Their prescriptions cost Medicare Part D more than their services did: $59,860 for 94 claims, against $11,632 paid for services in 2024. Array Biopharma Inc was the largest of 6 companies reporting payments in 2025, $13,120 in all, mostly consulting fees. Lists University of Michigan Health System as a hospital affiliation.
Overview
| NPI | 1902149396 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 3, 2013 |
| Last updated in NPPES | Aug 22, 2025 |
| Certified by provider | Aug 22, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 4301514513 | MI |
| Internal Medicine, Hematology & Oncology | 207RH0003X | ME144733 | FL |
| Internal Medicine, Hematology & Oncology | 207RH0003X | MD478724 | PA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Hematology/Oncology (MI); Practitioner - Hematology/Oncology (PA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 49 |
|---|---|
| Services billed | 168 across 13 procedure codes |
| Paid by Medicare | $11,632 |
Part D prescriptions in 2024
| Prescriptions (claims) | 94 · 98 30-day fills |
|---|---|
| Total drug cost | $59,860 |
| Generic share | 70% of claims |
Education and affiliations
| Graduation year | 2009 |
|---|---|
| Medicare specialty | Hematology/Oncology |
| Secondary specialties | Internal Medicine, Medical Oncology |
| Telehealth | Offers telehealth |
Medical group
- Regents of the University of MichiganAnn Arbor, MI · 3,346 clinicians
Hospital affiliation
- University of Michigan Health SystemAnn Arbor, MI
Industry payments (Open Payments)
- 2025$13,120 · 13 payments from 6 companies
- 2024$4,324 · 10 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Array Biopharma Inc | $9,944 | 8 |
| Glaxosmithkline, LLC. | $2,250 | 1 |
| Amgen Inc. | $551.80 | 1 |
| Caris Mpi, Inc. | $141.23 | 1 |
| Pfizer Inc. | $135.00 | 1 |
What the 2025 payments were for
- Consulting Fee$11,242 · 6 payments
- Travel and Lodging$1,358 · 2 payments
- Food and Beverage$421.52 · 4 payments
- Education$98.65 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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