Katherine Sladewski, PA
NPI 1104481324ActiveIndividual· Physician Assistant· Torrance, CA
Physician Assistant (PA) with Genesis Healthcare Partners PC, practicing in Torrance, California. Their prescriptions cost Medicare Part D more than their services did: $173,382 for 1,344 claims, against $17,235 paid for services in 2024. Abbvie Inc. was the largest of 15 companies reporting payments in 2025, $1,177 in all, mostly food and beverage. Lists Providence Little Company of Mary Med Ctr Torrance and 1 other hospital as hospital affiliations.
Overview
| NPI | 1104481324 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA |
| Sole proprietor | No |
| NPI issued | May 2, 2019 |
| Last updated in NPPES | Apr 4, 2023 |
| Certified by provider | Apr 4, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | — | — |
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 (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 174 |
|---|---|
| Services billed | 1,243 across 13 procedure codes |
| Paid by Medicare | $17,235 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,344 · 3,030 30-day fills |
|---|---|
| Patients | 463 |
| Total drug cost | $173,382 |
| Generic share | 89% of claims |
Education and affiliations
| Graduation year | 2020 |
|---|---|
| Medicare specialty | Physician Assistant |
| Telehealth | Offers telehealth |
Medical group
- Genesis Healthcare Partners PCSan Francisco, CA · 228 clinicians
Hospital affiliations
- Providence Little Company of Mary Med Ctr TorranceTorrance, CA
- Torrance Memorial Medical CenterTorrance, CA
Industry payments (Open Payments)
- 2025$1,177 · 46 payments from 15 companies
- 2024$1,279 · 51 payments from 15 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $341.86 | 14 |
| Urogen Pharma, Inc. | $144.19 | 5 |
| Sumitomo Pharma America, Inc. | $119.33 | 5 |
| Dendreon Pharmaceuticals LLC | $104.34 | 4 |
| Astellas Pharma US Inc | $98.12 | 2 |
What the 2025 payments were for
- Food and Beverage$1,099 · 45 payments
- Education$77.99 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 93 physician assistants in Torrance · All physician assistants in California