Carol J. Sobkowiak, NP
NPI 1669759429ActiveIndividual· Nurse Practitioner· La Crosse, WI
Nurse Practitioner (NP) in La Crosse, Wisconsin, licensed in WI and MN, with an NPI issued in November 2011. Their prescriptions cost Medicare Part D more than their services did: $1,760,926 for 568 claims, against $15,593 paid for services in 2024. Ardelyx, Inc. reported $125.00 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1669759429 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | NP |
| Sole proprietor | No |
| NPI issued | Nov 8, 2011 |
| Last updated in NPPES | Feb 12, 2026 |
| Certified by provider | Feb 12, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | 4754-33 | WI |
| Nurse Practitioner | 363L00000X | R 147227-1 | 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 - Nurse Practitioner (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 174 |
|---|---|
| Services billed | 328 across 13 procedure codes |
| Paid by Medicare | $15,593 |
Part D prescriptions in 2024
| Prescriptions (claims) | 568 · 824 30-day fills |
|---|---|
| Patients | 149 |
| Total drug cost | $1,760,926 |
| Generic share | 72% of claims |
Industry payments (Open Payments)
- 2025$125.00 · 1 payment from 1 company
- 2024$282.85 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Ardelyx, Inc. | $125.00 | 1 |
What the 2025 payments were for
- Food and Beverage$125.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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