Kathryn Louise Arendt, M.D.
NPI 1639157613ActiveIndividual· Obstetrics & Gynecology, Gynecology· Kirkland, WA
Obstetrics & Gynecology, Gynecology (M.D.) in Kirkland, Washington, trained at University of Missouri, Columbia School of Medicine (class of 1990). Their prescriptions cost Medicare Part D more than their services did: $226,428 for 1,001 claims, against $62,618 paid for services in 2024. Sumitomo Pharma America, Inc. was the largest of 8 companies reporting payments in 2025, $957.46 in all, mostly food and beverage.
Overview
| NPI | 1639157613 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jan 9, 2006 |
| Last updated in NPPES | Mar 17, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology, Gynecology Primary | 207VG0400X | MD00031752 | WA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Obstetrics/Gynecology (WA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 192 |
|---|---|
| Services billed | 967 across 47 procedure codes |
| Paid by Medicare | $62,618 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,001 · 2,115 30-day fills |
|---|---|
| Patients | 244 |
| Total drug cost | $226,428 |
| Generic share | 70% of claims |
Education and affiliations
| Medical school | University of Missouri, Columbia School of Medicine |
|---|---|
| Graduation year | 1990 |
| Medicare specialty | Obstetrics/Gynecology |
Medical group
- Overlake Medical Clinics LLCBellevue, WA · 425 clinicians
Hospital affiliations
- Evergreenhealth Medical CenterKirkland, WA
- Overlake Hospital Medical Center & ClinicsBellevue, WA
Industry payments (Open Payments)
- 2025$957.46 · 24 payments from 8 companies
- 2024$2,134 · 26 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Sumitomo Pharma America, Inc. | $240.78 | 5 |
| Caldera Medical, Inc | $215.03 | 1 |
| Mayne Pharma Commercial LLC | $160.51 | 12 |
| Medtronic, Inc. | $112.81 | 1 |
| Femselect Inc. | $103.89 | 1 |
What the 2025 payments were for
- Food and Beverage$957.46 · 24 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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