Katherine Dagmar Wilkens, PA
NPI 1558384057ActiveIndividual· Physician Assistant· San Pablo, CA
Physician Assistant (PA) with R Makala Anders MD Medical Corporation, practicing in San Pablo, California. 955 Medicare patients in 2024, $206,105 paid; nearly all of their 671 Part D prescriptions were generic (96%). Organon LLC reported $31.40 in payments in 2025, mostly food and beverage. Lists Sonoma Valley Hospital as a hospital affiliation.
Overview
| NPI | 1558384057 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA |
| Sole proprietor | No |
| NPI issued | Jul 25, 2006 |
| Last updated in NPPES | Sep 6, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | PA16912 | CA |
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 | 955 |
|---|---|
| Services billed | 5,635 across 43 procedure codes |
| Paid by Medicare | $206,105 |
Part D prescriptions in 2024
| Prescriptions (claims) | 671 · 784 30-day fills |
|---|---|
| Patients | 340 |
| Total drug cost | $162,569 |
| Generic share | 96% of claims |
Education and affiliations
| Graduation year | 2003 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- R Makala Anders MD Medical CorporationSonoma, CA · 2 clinicians
Hospital affiliation
- Sonoma Valley HospitalSonoma, CA
Industry payments (Open Payments)
- 2025$31.40 · 1 payment from 1 company
- 2024$33.70 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Organon LLC | $31.40 | 1 |
What the 2025 payments were for
- Food and Beverage$31.40 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 15 physician assistants in San Pablo · All physician assistants in California