Michael Warren Guiou, M.D.
NPI 1548436363ActiveIndividual· Radiology, Radiation Oncology· Green Bay, WI
Radiology, Radiation Oncology (M.D.) in Green Bay, Wisconsin, trained at University of California, Davis School of Medicine (class of 2008). 123 Medicare patients in 2024, $81,491 paid; all of their 60 Part D prescriptions were generic.
Overview
| NPI | 1548436363 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 1, 2008 |
| Last updated in NPPES | Dec 16, 2021 |
| Certified by provider | Dec 16, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Radiology, Radiation Oncology Primary | 2085R0001X | 35122030 | OH |
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 - Radiation Oncology (MI); Practitioner - Radiation Oncology (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 123 |
|---|---|
| Services billed | 1,048 across 33 procedure codes |
| Paid by Medicare | $81,491 |
Part D prescriptions in 2024
| Prescriptions (claims) | 60 · 71 30-day fills |
|---|---|
| Patients | 35 |
| Total drug cost | $549.59 |
| Generic share | 100% of claims |
Education and affiliations
| Medical school | University of California, Davis School of Medicine |
|---|---|
| Graduation year | 2008 |
| Medicare specialty | Radiation Oncology |
Medical groups
- St Vincent Hospital-Hospital Sisters-Third Order of St FrancisGreen Bay, WI · 603 clinicians
- Dlp Marquette Physician Practices IncMarquette, MI · 197 clinicians
Hospital affiliations
- Door County Medical CenterSturgeon Bay, WI
- St Vincent HospitalGreen Bay, WI
- Uphs Marquette Dlp HospitalMarquette, MI
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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