Christin Patricia Lissmann, APNP
NPI 1235857509ActiveIndividual· Nurse Practitioner, Gerontology· Milwaukee, WI
Nurse Practitioner, Gerontology (APNP) with Prohealth Medical Group Inc, practicing in Milwaukee, Wisconsin. Their prescriptions cost Medicare Part D more than their services did: $72,807 for 146 claims, against $20,409 paid for services in 2024. Celgene Corporation was the largest of 2 companies reporting payments in 2025, $55.81 in all, mostly food and beverage. Lists Oconomowoc Memorial Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1235857509 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | APNP |
| Sole proprietor | No |
| NPI issued | Aug 22, 2022 |
| Last updated in NPPES | Jan 5, 2024 |
| Certified by provider | Jan 5, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Gerontology Primary | 363LG0600X | 13083 | WI |
| Nurse Practitioner | 363L00000X | 13083-33 | 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 - Nurse Practitioner (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 137 |
|---|---|
| Services billed | 270 across 5 procedure codes |
| Paid by Medicare | $20,409 |
Part D prescriptions in 2024
| Prescriptions (claims) | 146 · 183 30-day fills |
|---|---|
| Patients | 75 |
| Total drug cost | $72,807 |
| Generic share | 81% of claims |
Education and affiliations
| Graduation year | 2018 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Prohealth Medical Group IncMukwonago, WI · 479 clinicians
Hospital affiliations
- Oconomowoc Memorial HospitalOconomowoc, WI
- Waukesha Memorial HospitalWaukesha, WI
Other facilities
- Prohealth Home CareHome health agency · Waukesha, WI
Industry payments (Open Payments)
- 2025$55.81 · 3 payments from 2 companies
- 2024$249.18 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Celgene Corporation | $40.85 | 2 |
| Taiho Oncology, Inc. | $14.96 | 1 |
What the 2025 payments were for
- Food and Beverage$55.81 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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