Caitlin Sommer Boyak, NP
NPI 1508513714ActiveIndividual· Nurse Practitioner· Ann Arbor, MI
Nurse Practitioner (NP) with Regents of the University of Michigan and 1 other group, practicing in Ann Arbor, Michigan. Their prescriptions cost Medicare Part D more than their services did: $172,427 for 528 claims, against $20,509 paid for services in 2024. Impulse Dynamics (USA) Inc. was the largest of 4 companies reporting payments in 2025, $383.02 in all, mostly food and beverage. Lists Rush Oak Park Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1508513714 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | NP |
| Sole proprietor | No |
| NPI issued | Mar 8, 2022 |
| Last updated in NPPES | Dec 19, 2024 |
| Certified by provider | Dec 19, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | 4704303958 | MI |
| Nurse Practitioner, Acute Care | 363LA2100X | PENDING | IL |
| Nurse Practitioner, Gerontology | 363LG0600X | PENDING | IL |
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 - Nurse Practitioner (IL); Practitioner - Nurse Practitioner (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 214 |
|---|---|
| Services billed | 408 across 17 procedure codes |
| Paid by Medicare | $20,509 |
Part D prescriptions in 2024
| Prescriptions (claims) | 528 · 1,023 30-day fills |
|---|---|
| Patients | 186 |
| Total drug cost | $172,427 |
| Generic share | 69% of claims |
Education and affiliations
| Graduation year | 2021 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical groups
- Regents of the University of MichiganAnn Arbor, MI · 3,346 clinicians
- Rush University Medical GroupChicago, IL · 1,551 clinicians
Hospital affiliations
- Rush Oak Park HospitalOak Park, IL
- Rush University Medical CenterChicago, IL
- University of Michigan Health SystemAnn Arbor, MI
Industry payments (Open Payments)
- 2025$383.02 · 4 payments from 4 companies
- 2024$3,524 · 34 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Impulse Dynamics (USA) Inc. | $154.13 | 1 |
| Biotronik Inc. | $110.81 | 1 |
| Boston Scientific Corporation | $74.93 | 1 |
| Atricure, Inc. | $43.15 | 1 |
What the 2025 payments were for
- Food and Beverage$383.02 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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