Mary Vanderwerp, PA
NPI 1023416351ActiveIndividual· Physician Assistant· Grand Rapids, MI
Physician Assistant (PA) with Spectrum Health Primary Care Partners, practicing in Grand Rapids, Michigan. Their prescriptions cost Medicare Part D more than their services did: $39,558 for 530 claims, against $6,486 paid for services in 2024. E.R. Squibb & Sons, L.L.C. was the largest of 4 companies reporting payments in 2025, $133.45 in all, mostly food and beverage. Lists Spectrum Health as a hospital affiliation.
Overview
| NPI | 1023416351 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA |
| Sole proprietor | No |
| NPI issued | Dec 19, 2014 |
| Last updated in NPPES | Feb 17, 2021 |
| Certified by provider | Feb 17, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 5601007241 | 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 - Physician Assistant (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 62 |
|---|---|
| Services billed | 82 across 14 procedure codes |
| Paid by Medicare | $6,486 |
Part D prescriptions in 2024
| Prescriptions (claims) | 530 · 704 30-day fills |
|---|---|
| Patients | 89 |
| Total drug cost | $39,558 |
| Generic share | 77% of claims |
Education and affiliations
| Graduation year | 2012 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Spectrum Health Primary Care PartnersGrand Rapids, MI · 2,294 clinicians
Hospital affiliation
- Spectrum HealthGrand Rapids, MI
Industry payments (Open Payments)
- 2025$133.45 · 6 payments from 4 companies
- 2024$92.68 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| E.R. Squibb & Sons, L.L.C. | $47.65 | 2 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $44.74 | 2 |
| Heartflow, Inc. | $22.83 | 1 |
| Novartis Pharmaceuticals Corporation | $18.23 | 1 |
What the 2025 payments were for
- Food and Beverage$133.45 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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