Genevieve A. Sierminski, M.D.
NPI 1376742858ActiveIndividual· Internal Medicine, Nephrology· Flint, MI
Internal Medicine, Nephrology (M.D.) with Nephrology and Internal Medicine PC, practicing in Flint, Michigan. 577 Medicare patients in 2024, $219,882 paid; nearly all of their 1,757 Part D prescriptions were generic (95%). Fresenius USA Marketing, Inc. reported $20.72 in payments in 2024, mostly food and beverage. Lists Ascension Genesys Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1376742858 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 13, 2007 |
| Last updated in NPPES | Feb 16, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 4301085687 | 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 - Nephrology (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 577 |
|---|---|
| Services billed | 2,015 across 17 procedure codes |
| Paid by Medicare | $219,882 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,757 · 3,920 30-day fills |
|---|---|
| Patients | 382 |
| Total drug cost | $137,001 |
| Generic share | 95% of claims |
Education and affiliations
| Graduation year | 1999 |
|---|---|
| Medicare specialty | Nephrology |
| Telehealth | Offers telehealth |
Medical group
- Nephrology and Internal Medicine PCOwosso, MI · 9 clinicians
Hospital affiliations
- Ascension Genesys HospitalGrand Blanc, MI
- Henry Ford Health HospitalDetroit, MI
- Hurley Medical CenterFlint, MI
- McLaren FlintFlint, MI
- Memorial HealthcareOwosso, MI
Other facilities
- Davita Burton DialysisDialysis facility · Burton, MI
- Davita Davison DialysisDialysis facility · Davison, MI
- Fmc Dialysis - OwossoDialysis facility · Owosso, MI
- Rrc - DavisonDialysis facility · Davison, MI
- Rrc - West FlintDialysis facility · Flint, MI
Industry payments (Open Payments)
- 2024$20.72 · 1 payment from 1 company
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Fresenius USA Marketing, Inc. | $20.72 | 1 |
What the 2024 payments were for
- Food and Beverage$20.72 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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