Kathryn Carnahan, MD
NPI 1598128324ActiveIndividual· Obstetrics & Gynecology· Wauwatosa, WI
Obstetrics & Gynecology (MD) in Wauwatosa, Wisconsin, trained at Medical College of Wisconsin (class of 2016). Their prescriptions cost Medicare Part D more than their services did: $10,986 for 46 claims, against $2,298 paid for services in 2024. Hologic Sales and Service, LLC reported $23.29 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1598128324 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 30, 2016 |
| Last updated in NPPES | Mar 7, 2023 |
| Certified by provider | Jun 16, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | 67806-20 | WI |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 - Obstetrics/Gynecology (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 11 |
|---|---|
| Services billed | 19 across 10 procedure codes |
| Paid by Medicare | $2,298 |
Part D prescriptions in 2024
| Prescriptions (claims) | 46 · 88 30-day fills |
|---|---|
| Patients | 20 |
| Total drug cost | $10,986 |
| Generic share | 70% of claims |
Education and affiliations
| Medical school | Medical College of Wisconsin |
|---|---|
| Graduation year | 2016 |
| Medicare specialty | Obstetrics/Gynecology |
Medical group
- Ascension Medical Group-Southeast Wisconsin IncBrookfield, WI · 545 clinicians
Hospital affiliation
- Ascension Se Wisconsin HospitalMilwaukee, WI
Industry payments (Open Payments)
- 2025$23.29 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Hologic Sales and Service, LLC | $23.29 | 1 |
What the 2025 payments were for
- Food and Beverage$23.29 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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