Mark Ashby, PA
NPI 1093060386ActiveIndividual· Physician Assistant· Sherman Oaks, CA
Physician Assistant (PA) with Central Valley Emergency Medicine and 1 other group, practicing in Sherman Oaks, California. 426 Medicare patients in 2024, $111,636 paid; nearly all of their 393 Part D prescriptions were generic (94%). Lists Chino Valley Medical Center and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1093060386 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA |
| Sole proprietor | No |
| NPI issued | Jul 23, 2012 |
| Last updated in NPPES | Nov 4, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | PA22159 | 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 | 426 |
|---|---|
| Services billed | 1,417 across 46 procedure codes |
| Paid by Medicare | $111,636 |
Part D prescriptions in 2024
| Prescriptions (claims) | 393 · 393 30-day fills |
|---|---|
| Patients | 266 |
| Total drug cost | $11,913 |
| Generic share | 94% of claims |
Education and affiliations
| Graduation year | 2011 |
|---|---|
| Medicare specialty | Physician Assistant |
| Telehealth | Offers telehealth |
Medical groups
- Central Valley Emergency MedicinePorterville, CA · 26 clinicians
- Ca Physician Assistant Cooperative Healthcare PCInglewood, CA · 2 clinicians
Hospital affiliations
- Chino Valley Medical CenterChino, CA
- Desert Valley HospitalVictorville, CA
- Sierra View Medical CenterPorterville, 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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All 47 physician assistants in Sherman Oaks · All physician assistants in California