Maryellen Walter Rosel, D.O.
NPI 1821044280ActiveIndividual· Hospitalist· Muskegon, MI
Hospitalist (D.O.) in Muskegon, Michigan, trained at Michigan State University College of Osteopathic Medicine (class of 2003). 295 Medicare patients in 2024, $41,768 paid; nearly all of their 169 Part D prescriptions were generic (91%). Novo Nordisk Inc was the largest of 5 companies reporting payments in 2025, $87.52 in all, mostly food and beverage.
Overview
| NPI | 1821044280 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | May 26, 2006 |
| Last updated in NPPES | Apr 23, 2022 |
| Certified by provider | Apr 23, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Hospitalist Primary | 208M00000X | 5101015664 | MI |
| Internal Medicine | 207R00000X | 5101015664 | 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 - Internal Medicine (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 295 |
|---|---|
| Services billed | 566 across 10 procedure codes |
| Paid by Medicare | $41,768 |
Part D prescriptions in 2024
| Prescriptions (claims) | 169 · 171 30-day fills |
|---|---|
| Patients | 80 |
| Total drug cost | $7,228 |
| Generic share | 91% of claims |
Education and affiliations
| Medical school | Michigan State University College of Osteopathic Medicine |
|---|---|
| Graduation year | 2003 |
| Medicare specialty | Internal Medicine |
Medical groups
- Mercy Specialty ServicesMuskegon, MI · 90 clinicians
- Trinity Health Grand Haven HospitalGrand Haven, MI · 11 clinicians
Hospital affiliations
- Mercy Health Lakeshore CampusShelby, MI
- Trinity Health Grand Haven HospitalGrand Haven, MI
- Trinity Health Muskegon HospitalMuskegon, MI
Industry payments (Open Payments)
- 2025$87.52 · 5 payments from 5 companies
- 2024$149.35 · 7 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $22.40 | 1 |
| Inspire Medical Systems, Inc. | $17.86 | 1 |
| E.R. Squibb & Sons, L.L.C. | $17.52 | 1 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $15.25 | 1 |
| Merck Sharp & Dohme LLC | $14.49 | 1 |
What the 2025 payments were for
- Food and Beverage$87.52 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 35 hospitalists in Muskegon · All hospitalists in Michigan