Roxanne F. Umanzor-Smiley, PA
NPI 1508914599ActiveIndividual· Physician Assistant· Fontana, CA
Physician Assistant (PA) with Southern California Permanente Medical Group, practicing in Fontana, California. Their prescriptions cost Medicare Part D more than their services did: $14,614 for 594 claims, against $530.92 paid for services in 2024.
Overview
| NPI | 1508914599 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA |
| Sole proprietor | No |
| NPI issued | Jan 8, 2007 |
| Last updated in NPPES | Dec 1, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | PA13306 | 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 | 13 |
|---|---|
| Services billed | 13 across 4 procedure codes |
| Paid by Medicare | $530.92 |
Part D prescriptions in 2024
| Prescriptions (claims) | 594 · 874 30-day fills |
|---|---|
| Patients | 351 |
| Total drug cost | $14,614 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 1993 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Southern California Permanente Medical GroupRedlands, CA · 11,293 clinicians
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 98 physician assistants in Fontana · All physician assistants in California