Mark Justin Apfel, M.D.
NPI 1538219779ActiveIndividual· Family Medicine· Boonville, CA
Family Medicine (M.D.) in Boonville, California, trained at State University of New York at Buffalo School of Medicine (class of 1973). 20 Medicare patients in 2024, $3,505 paid; nearly all of their 77 Part D prescriptions were generic (90%).
Overview
| NPI | 1538219779 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jan 11, 2007 |
| Last updated in NPPES | Mar 28, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | G27316 | 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 | 20 |
|---|---|
| Services billed | 44 across 7 procedure codes |
| Paid by Medicare | $3,505 |
Part D prescriptions in 2024
| Prescriptions (claims) | 77 · 149 30-day fills |
|---|---|
| Patients | 47 |
| Total drug cost | $5,238 |
| Generic share | 90% of claims |
Education and affiliations
| Medical school | State University of New York at Buffalo School of Medicine |
|---|---|
| Graduation year | 1973 |
| Medicare specialty | Family Practice |
Medical group
- Anderson Valley Health CenterBoonville, CA · 5 clinicians
Hospital affiliation
- Adventist Health Ukiah ValleyUkiah, CA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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