Mehrdad Ghahremani-Ghajar, D.O.
NPI 1942510607ActiveIndividual· Internal Medicine· Rialto, CA
Internal Medicine (D.O.) with Southern California Permanente Medical Group and 2 other groups, practicing in Rialto, California. In 2024 Medicare paid $178,814 for 400 patients, and Part D covered 2,292 of their prescriptions, 88% of them generic. Bayer Healthcare Pharmaceuticals Inc. reported $29.54 in payments in 2025, mostly food and beverage. Lists Arrowhead Regional Medical Center and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1942510607 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Oct 15, 2010 |
| Last updated in NPPES | May 19, 2026 |
| Certified by provider | May 19, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 20A11526 | CA |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 - General Practice (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 400 |
|---|---|
| Services billed | 1,644 across 19 procedure codes |
| Paid by Medicare | $178,814 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,292 · 4,861 30-day fills |
|---|---|
| Patients | 360 |
| Total drug cost | $171,740 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 2009 |
|---|---|
| Medicare specialty | General Practice |
| Secondary specialties | Internal Medicine, Neurology |
| Telehealth | Offers telehealth |
Medical groups
- Southern California Permanente Medical GroupRedlands, CA · 11,293 clinicians
- Quantum Healthcare Medical Associates IncHilo, HI · 109 clinicians
- Inland Empire Nephrology IncColton, CA · 7 clinicians
Hospital affiliations
- Arrowhead Regional Medical CenterColton, CA
- Kaiser Foundation Hospital, RiversideRiverside, CA
- Kaiser Foundation Hospital-Moreno ValleyMoreno Valley, CA
Other facilities
- Blendship, IncHospice · Upland, CA
- Madison Hospice, Inc.Hospice · West Covina, CA
Industry payments (Open Payments)
- 2025$29.54 · 1 payment from 1 company
- 2024$63.99 · 3 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Bayer Healthcare Pharmaceuticals Inc. | $29.54 | 1 |
What the 2025 payments were for
- Food and Beverage$29.54 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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