Marshall Roy Koon, PA-C
NPI 1982939302ActiveIndividual· Physician Assistant, Medical· Apple Valley, CA
Physician Assistant, Medical (PA-C) in Apple Valley, California, licensed in CA, with an NPI issued in October 2009. 38 Medicare patients in 2024, $3,666 paid; nearly all of their 69 Part D prescriptions were generic (94%).
Overview
| NPI | 1982939302 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Oct 4, 2009 |
| Last updated in NPPES | Oct 4, 2009 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant, Medical Primary | 363AM0700X | PA20578 | 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 | 38 |
|---|---|
| Services billed | 45 across 8 procedure codes |
| Paid by Medicare | $3,666 |
Part D prescriptions in 2024
| Prescriptions (claims) | 69 · 70 30-day fills |
|---|---|
| Patients | 44 |
| Total drug cost | $1,718 |
| Generic share | 94% of claims |
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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