Tosan A. Fregene, M.D.
NPI 1336189513ActiveIndividual· Internal Medicine, Hematology & Oncology· Oak Park, MI
Internal Medicine, Hematology & Oncology (M.D.) with Ccm Health, practicing in Oak Park, Michigan. Their prescriptions cost Medicare Part D more than their services did: $2,843,366 for 1,020 claims, against $77,633 paid for services in 2024. Inari Medical, Inc. reported $173.49 in payments in 2024, mostly food and beverage. Lists Ascension Providence Hospital, Southfield and Novi and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1336189513 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 7, 2006 |
| Last updated in NPPES | Dec 19, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | TF053107 | MI |
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 - Hematology/Oncology (MI); Practitioner - Hematology/Oncology (MN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 219 |
|---|---|
| Services billed | 1,134 across 9 procedure codes |
| Paid by Medicare | $77,633 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,020 · 1,418 30-day fills |
|---|---|
| Patients | 140 |
| Total drug cost | $2,843,366 |
| Generic share | 80% of claims |
Education and affiliations
| Graduation year | 1985 |
|---|---|
| Medicare specialty | Hematology/Oncology |
| Secondary specialties | Hospice/Palliative Care |
| Telehealth | Offers telehealth |
Medical group
- Ccm HealthMontevideo, MN · 69 clinicians
Hospital affiliations
- Ascension Providence Hospital, Southfield and NoviSouthfield, MI
- Chippewa County HospitalMontevideo, MN
- Detroit Receiving HospitalDetroit, MI
- Harper University HospitalDetroit, MI
- Sinai-Grace HospitalDetroit, MI
Industry payments (Open Payments)
- 2024$173.49 · 1 payment from 1 company
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Inari Medical, Inc. | $173.49 | 1 |
What the 2024 payments were for
- Food and Beverage$173.49 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other hematologist-oncologists in Oak Park
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