Larissa Severine May, MD
NPI 1083624282ActiveIndividual· Emergency Medicine· Sacramento, CA
Emergency Medicine (MD) in Sacramento, California, trained at George Washington University School of Medicine (class of 2002). Mostly services rather than prescriptions: Medicare paid $5,451 for 66 patients in 2024, with only 47 Part D claims. Biomerieux Inc was the largest of 3 companies reporting payments in 2025, $25,213 in all, mostly speaking and faculty fees.
Overview
| NPI | 1083624282 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 9, 2006 |
| Last updated in NPPES | Oct 23, 2026 |
| Certified by provider | Oct 23, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | C15503 | CA |
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 - Emergency Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 66 |
|---|---|
| Services billed | 69 across 7 procedure codes |
| Paid by Medicare | $5,451 |
Part D prescriptions in 2024
| Prescriptions (claims) | 47 · 48 30-day fills |
|---|---|
| Patients | 23 |
| Total drug cost | $1,060 |
| Generic share | 91% of claims |
Education and affiliations
| Medical school | George Washington University School of Medicine |
|---|---|
| Graduation year | 2002 |
| Medicare specialty | Emergency Medicine |
| Secondary specialties | Pediatric Medicine |
Medical group
- Regents of the Univ of CaSacramento, CA · 1,584 clinicians
Hospital affiliation
- University of California Davis Medical CenterSacramento, CA
Industry payments (Open Payments)
- 2025$25,213 · 18 payments from 3 companies
- 2024$6,251 · 7 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Biomerieux Inc | $25,090 | 16 |
| Biofire Diagnostics, LLC | $75.00 | 1 |
| Janssen Research & Development, LLC | $48.39 | 1 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$23,400 · 10 payments
- Travel and Lodging$1,542 · 4 payments
- Food and Beverage$270.80 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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