William Aaron Markoff, M.D.
NPI 1407869167ActiveIndividual· Family Medicine· Santa Rosa, CA
Family Medicine (M.D.) with Providence Medical Foundation, practicing in Santa Rosa, California. Their prescriptions cost Medicare Part D more than their services did: $496,168 for 8,605 claims, against $219,971 paid for services in 2024. Pfizer Inc. reported $17.44 in payments in 2024, mostly education. Lists Petaluma Valley Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1407869167 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 14, 2006 |
| Last updated in NPPES | Nov 30, 2021 |
| Certified by provider | Nov 30, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | A74621 | 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 - Family Practice (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 629 |
|---|---|
| Services billed | 3,303 across 37 procedure codes |
| Paid by Medicare | $219,971 |
Part D prescriptions in 2024
| Prescriptions (claims) | 8,605 · 21,186 30-day fills |
|---|---|
| Patients | 812 |
| Total drug cost | $496,168 |
| Generic share | 91% of claims |
Education and affiliations
| Graduation year | 1998 |
|---|---|
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Medical group
- Providence Medical FoundationVictorville, CA · 1,466 clinicians
Hospital affiliations
- Petaluma Valley HospitalPetaluma, CA
- Providence Santa Rosa Memorial HospitalSanta Rosa, CA
- Sonoma Valley HospitalSonoma, CA
Other facilities
- Accentcare Home Health of California, IncHome health agency · San Ramon, CA
- Blc Homehealth IncHome health agency · San Leandro, CA
- Bridge Home HealthHome health agency · Petaluma, CA
- Providence at Home With Compassus Home Health, SonomaHome health agency · Santa Rosa, CA
- Sutter Care at HomeHome health agency · Santa Rosa, CA
Industry payments (Open Payments)
- 2024$17.44 · 1 payment from 1 company
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $17.44 | 1 |
What the 2024 payments were for
- Education$17.44 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 298 family medicine physicians in Santa Rosa · All family medicine physicians in California