Clarissa J. Renken, DO
NPI 1861636375ActiveIndividual· Family Medicine· Wausau, WI
Family Medicine (DO) in Wausau, Wisconsin, trained at West Virginia School of Osteopathic Medicine (class of 2009). Their prescriptions cost Medicare Part D more than their services did: $530,562 for 4,899 claims, against $23,663 paid for services in 2024. Novo Nordisk Inc was the largest of 3 companies reporting payments in 2025, $225.66 in all, mostly food and beverage.
Overview
| NPI | 1861636375 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Apr 28, 2009 |
| Last updated in NPPES | Jun 20, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 54752-21 | WI |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | WI |
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 - Family Practice (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 130 |
|---|---|
| Services billed | 412 across 15 procedure codes |
| Paid by Medicare | $23,663 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,899 · 11,531 30-day fills |
|---|---|
| Patients | 356 |
| Total drug cost | $530,562 |
| Generic share | 85% of claims |
Education and affiliations
| Medical school | West Virginia School of Osteopathic Medicine |
|---|---|
| Graduation year | 2009 |
| Medicare specialty | Family Practice |
Medical group
- Aspirus Wausau Hospital IncWausau, WI · 237 clinicians
Hospital affiliations
- Aspirus Stevens Point Hospital & Clinics, Inc.Stevens Point, WI
- Aspirus Wausau HospitalWausau, WI
- Langlade HospitalAntigo, WI
Other facilities
- Aspirus at HomeHome health agency · Wausau, WI
- Aspirus at HomeHospice · Wausau, WI
Industry payments (Open Payments)
- 2025$225.66 · 3 payments from 3 companies
- 2024$362.59 · 6 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $87.24 | 1 |
| Lilly USA, LLC | $76.09 | 1 |
| Exact Sciences Corporation | $62.33 | 1 |
What the 2025 payments were for
- Food and Beverage$225.66 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 65 family medicine physicians in Wausau · All family medicine physicians in Wisconsin