Marissa Zobrist, M.D.
NPI 1033407382ActiveIndividual· Emergency Medicine· Los Angeles, CA
Emergency Medicine (M.D.) in Los Angeles, California, trained at University of Southern California Keck School of Medicine (class of 2011). 619 Medicare patients in 2024, $81,701 paid; nearly all of their 220 Part D prescriptions were generic (92%). Stryker Corporation was the largest of 2 companies reporting payments in 2025, $68.20 in all, mostly food and beverage.
Overview
| NPI | 1033407382 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jul 20, 2011 |
| Last updated in NPPES | May 26, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | A123446 | CA |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 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 | 619 |
|---|---|
| Services billed | 1,224 across 57 procedure codes |
| Paid by Medicare | $81,701 |
Part D prescriptions in 2024
| Prescriptions (claims) | 220 · 228 30-day fills |
|---|---|
| Patients | 172 |
| Total drug cost | $8,090 |
| Generic share | 92% of claims |
Education and affiliations
| Medical school | University of Southern California Keck School of Medicine |
|---|---|
| Graduation year | 2011 |
| Medicare specialty | Emergency Medicine |
Medical group
- Providence Saint Johns Medical FoundationSanta Monica, CA · 281 clinicians
Hospital affiliation
- Saint John's Health CenterSanta Monica, CA
Industry payments (Open Payments)
- 2025$68.20 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Stryker Corporation | $41.68 | 1 |
| Inari Medical, Inc. | $26.52 | 1 |
What the 2025 payments were for
- Food and Beverage$68.20 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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