Diana Westbrook, PA-C
NPI 1215487780ActiveIndividual· Physician Assistant· Rancho Mirage, CA
Physician Assistant (PA-C) in Rancho Mirage, California, trained at Western University of Health Sciences College of Dental Med (class of 2016). Their prescriptions cost Medicare Part D more than their services did: $916,931 for 1,182 claims, against $202,421 paid for services in 2024. Abbvie Inc. was the largest of 14 companies reporting payments in 2025, $1,307 in all, mostly food and beverage.
Overview
| NPI | 1215487780 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Oct 9, 2016 |
| Last updated in NPPES | Oct 11, 2023 |
| Certified by provider | Oct 11, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 53855 | 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 | 1,252 |
|---|---|
| Services billed | 5,634 across 43 procedure codes |
| Paid by Medicare | $202,421 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,182 · 1,409 30-day fills |
|---|---|
| Patients | 486 |
| Total drug cost | $916,931 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | Western University of Health Sciences College of Dental Med |
|---|---|
| Graduation year | 2016 |
| Medicare specialty | Physician Assistant |
Medical group
- J Robert West MD IncLas Vegas, NV · 138 clinicians
Industry payments (Open Payments)
- 2025$1,307 · 55 payments from 14 companies
- 2024$2,283 · 95 payments from 15 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $259.50 | 14 |
| Ucb, Inc. | $168.81 | 6 |
| Arcutis Biotherapeutics, Inc. | $151.05 | 7 |
| Genzyme Corporation | $140.41 | 3 |
| Galderma Laboratories, L.P. | $131.59 | 6 |
What the 2025 payments were for
- Food and Beverage$1,307 · 55 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 63 physician assistants in Rancho Mirage · All physician assistants in California