Mariah Koenen, PA-C
NPI 1619378585ActiveIndividual· Physician Assistant· La Crosse, WI
Physician Assistant (PA-C) with Mayo Clinic Health System-Southwest Wisconsin Region Inc, practicing in La Crosse, Wisconsin. Mostly services rather than prescriptions: Medicare paid $16,283 for 174 patients in 2024, with only 19 Part D claims. Lists Mayo Clinic Health System-Franciscan Medical Center Inc and 1 other hospital as hospital affiliations.
Overview
| NPI | 1619378585 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Sep 10, 2014 |
| Last updated in NPPES | Jul 15, 2021 |
| Certified by provider | Jul 15, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 3480 | WI |
| Physician Assistant | 363A00000X | 11699 | MN |
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 - Physician Assistant (MN); Practitioner - Physician Assistant (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 174 |
|---|---|
| Services billed | 325 across 17 procedure codes |
| Paid by Medicare | $16,283 |
Part D prescriptions in 2024
| Prescriptions (claims) | 19 · 29 30-day fills |
|---|---|
| Patients | 12 |
| Total drug cost | $633.79 |
| Generic share | 100% of claims |
Education and affiliations
| Graduation year | 2014 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Mayo Clinic Health System-Southwest Wisconsin Region IncLa Crosse, WI · 534 clinicians
Hospital affiliations
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 59 physician assistants in La Crosse · All physician assistants in Wisconsin