Quick answers
- Does Melissa Larsen accept Medicare assignment?
- Medicare's clinician data says Melissa Larsen may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- What is Melissa Larsen's NPI number?
- 1831192418. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Melissa Larsen works
Medicare's Facility Affiliation Data lists Melissa Larsen at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Salinas Valley Health Medical CenterSalinas, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050334
Practice locations
Addresses where Melissa Larsen is enrolled with Medicare (CMS data updated October 2, 2026).
- 450 E Romie LnSalinas, CA 93901
- 777 Knowles Dr, Suite 11Los Gatos, CA 95032 (408) 871‑5202
Group practices
Medicare enrollment lists Melissa Larsen as a member of these groups (CMS data updated October 2, 2026).
- El Camino Health Medical Network LLC202 clinicians in the group
- Obstetrix Medical Group of California a Professional Corporation15 clinicians in the group
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in Salinas
Clinicians with the same Medicare primary specialty in Salinas, CA — not a recommendation.
Other clinicians in El Camino Health Medical Network LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1981 (45 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1831192418 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians