Trisha Zylstra, MD
NPI 1134223779ActiveIndividual· Obstetrics & Gynecology· Grand Rapids, MI
Obstetrics & Gynecology (MD) in Grand Rapids, Michigan, trained at Michigan State University College of Human Medicine (class of 2002). Their prescriptions cost Medicare Part D more than their services did: $20,742 for 202 claims, against $1,538 paid for services in 2024. Hologic Sales and Service, LLC reported $17.72 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1134223779 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Sep 12, 2006 |
| Last updated in NPPES | Feb 24, 2020 |
| Certified by provider | Feb 24, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | 4301080272 | 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 | 23 |
|---|---|
| Services billed | 32 across 6 procedure codes |
| Paid by Medicare | $1,538 |
Part D prescriptions in 2024
| Prescriptions (claims) | 202 · 399 30-day fills |
|---|---|
| Patients | 67 |
| Total drug cost | $20,742 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | Michigan State University College of Human Medicine |
|---|---|
| Graduation year | 2002 |
| Medicare specialty | Obstetrics/Gynecology |
Medical group
- Advantage Health/Saint Mary's Medical GroupCaledonia, MI · 505 clinicians
Industry payments (Open Payments)
- 2025$17.72 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Hologic Sales and Service, LLC | $17.72 | 1 |
What the 2025 payments were for
- Food and Beverage$17.72 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other OB-GYNs in Grand Rapids
- 1063403657
- 1063452118
- 1063953214
- 1083954606
- 1093833451
- 1134780315
- 1154617660
- 1154628600
- 1154852838
- 1164402012
- 1205217056
- 1265422653