Ramon Aguilera Grijalva Jr., M.D.
NPI 1023295292ActiveIndividual· Orthopaedic Surgery· Riverside, CA
Orthopaedic Surgery (M.D.) in Riverside, California, trained at University of California, Geffen School of Medicine (class of 2007). Their prescriptions cost Medicare Part D more than their services did: $8,246 for 868 claims, against $2,637 paid for services in 2024. Zimmer Biomet Holdings, Inc. reported $600.24 in payments in 2025, mostly education.
Overview
| NPI | 1023295292 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jan 29, 2008 |
| Last updated in NPPES | Dec 6, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery Primary | 207X00000X | A105392 | CA |
| Orthopaedic Surgery | 207X00000X | 8315898-1205 | UT |
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 - Orthopedic Surgery (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 17 |
|---|---|
| Services billed | 30 across 12 procedure codes |
| Paid by Medicare | $2,637 |
Part D prescriptions in 2024
| Prescriptions (claims) | 868 · 946 30-day fills |
|---|---|
| Patients | 318 |
| Total drug cost | $8,246 |
| Generic share | 99% of claims |
Education and affiliations
| Medical school | University of California, Geffen School of Medicine |
|---|---|
| Graduation year | 2007 |
| Medicare specialty | Orthopedic Surgery |
Medical group
- Southern California Permanente Medical GroupRedlands, CA · 11,293 clinicians
Hospital affiliation
- Kaiser Foundation Hospital, RiversideRiverside, CA
Other facilities
- Kaiser, Riverside, Home Health Agency (Parent)Home health agency · Corona, CA
Industry payments (Open Payments)
- 2025$600.24 · 3 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Zimmer Biomet Holdings, Inc. | $600.24 | 3 |
What the 2025 payments were for
- Education$438.15 · 1 payment
- Food and Beverage$162.09 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Orthopaedic Surgery providers in Riverside
- 1609018464
- 1780955310
- 1225732506
- 1275608937
- 1669557872
- 1740308683
- 1528213303
- 1144491895
- 1164915716
- 1215107354
- 1477512671
- 1598878449