Gagandeep Grewal, M.D.
NPI 1285675314ActiveIndividual· Emergency Medicine· Santa Ana, CA
Emergency Medicine (M.D.) in Santa Ana, California, trained at University of California, Davis School of Medicine (class of 1997). 68 Medicare patients in 2024, $9,941 paid; nearly all of their 79 Part D prescriptions were generic (92%). Genentech USA, Inc. was the largest of 2 companies reporting payments in 2025, $66.43 in all, mostly food and beverage.
Overview
| NPI | 1285675314 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 9, 2006 |
| Last updated in NPPES | Nov 30, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | A68101 | 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 - Emergency Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 68 |
|---|---|
| Services billed | 127 across 13 procedure codes |
| Paid by Medicare | $9,941 |
Part D prescriptions in 2024
| Prescriptions (claims) | 79 · 80 30-day fills |
|---|---|
| Patients | 50 |
| Total drug cost | $582.92 |
| Generic share | 92% of claims |
Education and affiliations
| Medical school | University of California, Davis School of Medicine |
|---|---|
| Graduation year | 1997 |
| Medicare specialty | Emergency Medicine |
Medical group
- Cep America - CaliforniaPomona, CA · 1,292 clinicians
Hospital affiliation
- Redlands Community HospitalRedlands, CA
Industry payments (Open Payments)
- 2025$66.43 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Genentech USA, Inc. | $44.62 | 1 |
| Chiesi USA, Inc. | $21.81 | 1 |
What the 2025 payments were for
- Food and Beverage$66.43 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 23 emergency medicine physicians in Santa Ana · All emergency medicine physicians in California