Michael W. McNamara, M.D.
NPI 1336268747ActiveIndividual· Internal Medicine, Cardiovascular Disease· Wyoming, MI
Internal Medicine, Cardiovascular Disease (M.D.) with Spectrum Health Primary Care Partners, practicing in Wyoming, Michigan. Their prescriptions cost Medicare Part D more than their services did: $1,224,973 for 6,867 claims, against $50,366 paid for services in 2024. Heartflow, Inc. was the largest of 2 companies reporting payments in 2025, $655.78 in all, mostly consulting fees. Lists Corewell Health Gerber Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1336268747 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Mar 28, 2007 |
| Last updated in NPPES | Mar 3, 2021 |
| Certified by provider | Mar 3, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | 4301087880 | MI |
| Student in an Organized Health Care Education/Training Program | 390200000X | 4301087880 | 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 - Cardiovascular Disease (Cardiology) (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 792 |
|---|---|
| Services billed | 1,318 across 49 procedure codes |
| Paid by Medicare | $50,366 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,867 · 17,510 30-day fills |
|---|---|
| Patients | 1,537 |
| Total drug cost | $1,224,973 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 2006 |
|---|---|
| Medicare specialty | Cardiovascular Disease (Cardiology) |
Medical group
- Spectrum Health Primary Care PartnersGrand Rapids, MI · 2,294 clinicians
Hospital affiliations
- Corewell Health Gerber HospitalFremont, MI
- Corewell Health Reed City HospitalReed City, MI
- Holland HospitalHolland, MI
- Spectrum HealthGrand Rapids, MI
- Spectrum Health United HospitalGreenville, MI
Industry payments (Open Payments)
- 2025$655.78 · 3 payments from 2 companies
- 2024$427.01 · 4 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Heartflow, Inc. | $600.00 | 2 |
| Baxter Healthcare | $55.78 | 1 |
What the 2025 payments were for
- Consulting Fee$600.00 · 2 payments
- Food and Beverage$55.78 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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