Stephen Gassner, MD, MPH
NPI 1538628524ActiveIndividual· Emergency Medicine· Orange, CA
Emergency Medicine (MD, MPH) in Orange, California, licensed in CA, with an NPI issued in March 2019. Their prescriptions cost Medicare Part D more than their services did: $6,164 for 280 claims, against $1,154 paid for services in 2024.
Overview
| NPI | 1538628524 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD, MPH |
| Sole proprietor | No |
| NPI issued | Mar 18, 2019 |
| Last updated in NPPES | Dec 13, 2022 |
| Certified by provider | Dec 13, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | A177552 | 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 | 17 |
|---|---|
| Services billed | 17 across 4 procedure codes |
| Paid by Medicare | $1,154 |
Part D prescriptions in 2024
| Prescriptions (claims) | 280 · 297 30-day fills |
|---|---|
| Patients | 176 |
| Total drug cost | $6,164 |
| Generic share | 91% of claims |
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other emergency medicine physicians in Orange
- 1003996257
- 1013327360
- 1033299185
- 1033429253
- 1063838159
- 1124274915
- 1124588058
- 1154734671
- 1164006946
- 1215424502
- 1215969449
- 1225590201
All 181 emergency medicine physicians in Orange · All emergency medicine physicians in California