Michael Shawn Werkema, M.D.
NPI 1093833451ActiveIndividual· Obstetrics & Gynecology· Grand Rapids, MI
Obstetrics & Gynecology (M.D.) in Grand Rapids, Michigan, trained at Wayne State University School of Medicine (class of 2003). 20 Medicare patients in 2024, $3,564 paid; nearly all of their 92 Part D prescriptions were generic (91%). Intuitive Surgical, Inc. was the largest of 2 companies reporting payments in 2025, $222.17 in all, mostly food and beverage.
Overview
| NPI | 1093833451 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Mar 26, 2007 |
| Last updated in NPPES | Jun 24, 2024 |
| Certified by provider | Jun 24, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | 4301081890 | 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 - Obstetrics/Gynecology (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 20 |
|---|---|
| Services billed | 59 across 16 procedure codes |
| Paid by Medicare | $3,564 |
Part D prescriptions in 2024
| Prescriptions (claims) | 92 · 164 30-day fills |
|---|---|
| Patients | 30 |
| Total drug cost | $3,725 |
| Generic share | 91% of claims |
Education and affiliations
| Medical school | Wayne State University School of Medicine |
|---|---|
| Graduation year | 2003 |
| Medicare specialty | Obstetrics/Gynecology |
Medical group
- Spectrum Health Primary Care PartnersGrand Rapids, MI · 2,294 clinicians
Hospital affiliation
- Spectrum HealthGrand Rapids, MI
Industry payments (Open Payments)
- 2025$222.17 · 6 payments from 2 companies
- 2024$77.24 · 4 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Intuitive Surgical, Inc. | $131.24 | 1 |
| Hologic Sales and Service, LLC | $90.93 | 5 |
What the 2025 payments were for
- Food and Beverage$222.17 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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