Brett Ryan Grundl, MMS, PA-C
NPI 1578783171ActiveIndividual· Physician Assistant· Hemet, CA
Physician Assistant (MMS, PA-C) with County of Riverside, practicing in Hemet, California. Part D covered 3,955 prescriptions written in 2024, 81% of them generic. Lilly USA, LLC was the largest of 2 companies reporting payments in 2025, $52.13 in all, mostly food and beverage. Lists Riverside University Health System-Medical Center as a hospital affiliation.
Overview
| NPI | 1578783171 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MMS, PA-C |
| Sole proprietor | No |
| NPI issued | Apr 26, 2007 |
| Last updated in NPPES | Jul 5, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | PA 18749 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Physician Assistant (CA) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 3,955 · 7,346 30-day fills |
|---|---|
| Patients | 249 |
| Total drug cost | $433,443 |
| Generic share | 81% of claims |
Education and affiliations
| Graduation year | 2006 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- County of RiversideIndio, CA · 193 clinicians
Hospital affiliation
- Riverside University Health System-Medical CenterMoreno Valley, CA
Industry payments (Open Payments)
- 2025$52.13 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lilly USA, LLC | $32.79 | 1 |
| Exact Sciences Corporation | $19.34 | 1 |
What the 2025 payments were for
- Food and Beverage$52.13 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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