Thomas Yvan Regenbogen, MD
NPI 1326369794ActiveIndividual· Internal Medicine, Medical Oncology· Ypsilanti, MI
Internal Medicine, Medical Oncology (MD) with Iha Health Services Corporation, practicing in Ypsilanti, Michigan. Their prescriptions cost Medicare Part D more than their services did: $1,666,371 for 910 claims, against $69,682 paid for services in 2024. Astrazeneca Pharmaceuticals LP reported $43.25 in payments in 2025, mostly education. Lists Chelsea Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1326369794 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 19, 2010 |
| Last updated in NPPES | Dec 19, 2024 |
| Certified by provider | Jun 8, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Medical Oncology Primary | 207RX0202X | 4301111453 | MI |
| Internal Medicine | 207R00000X | 4301111453 | MI |
| Internal Medicine | 207R00000X | 2013020343 | MO |
| Internal Medicine, Hematology & Oncology | 207RH0003X | 4301111453 | MI |
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 - Internal Medicine (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 248 |
|---|---|
| Services billed | 887 across 20 procedure codes |
| Paid by Medicare | $69,682 |
Part D prescriptions in 2024
| Prescriptions (claims) | 910 · 1,206 30-day fills |
|---|---|
| Patients | 182 |
| Total drug cost | $1,666,371 |
| Generic share | 78% of claims |
Education and affiliations
| Graduation year | 2010 |
|---|---|
| Medicare specialty | Internal Medicine |
| Secondary specialties | Hematology/Oncology |
| Telehealth | Offers telehealth |
Medical group
- Iha Health Services CorporationPontiac, MI · 1,168 clinicians
Hospital affiliations
- Chelsea HospitalChelsea, MI
- St Joe Mercy Hospital System LivoniaLivonia, MI
- Trinity Health Ann Arbor HospitalAnn Arbor, MI
- Trinity Health Livingston HospitalHowell, MI
- Trinity Health Oakland HospitalPontiac, MI
Industry payments (Open Payments)
- 2025$43.25 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $43.25 | 1 |
What the 2025 payments were for
- Education$43.25 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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