Quick answers
- Which hospitals does Lewis Gamarra work at?
- Medicare's official clinician data lists Lewis Gamarra at 3 hospitals: Adventist Health Sierra Vista, French Hospital Medical Center and Marian Regional Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Lewis Gamarra see patients?
- Medicare's clinician data lists 1 practice location in Los Osos, CA. Call before your visit to confirm the address.
- What is Lewis Gamarra's specialty?
- Medicare lists Hospitalist as the primary specialty, and also Internal Medicine.
- Does Lewis Gamarra accept Medicare assignment?
- Yes. Medicare's clinician data says Lewis Gamarra accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- Does Lewis Gamarra offer telehealth?
- Medicare's clinician data says Lewis Gamarra offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Lewis Gamarra?
- (805) 534-9360, as listed in official Medicare / NPI Registry data.
- What is Lewis Gamarra's NPI number?
- 1124048608. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Lewis Gamarra works
Medicare's Facility Affiliation Data lists Lewis Gamarra at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Adventist Health Sierra VistaSan Luis Obispo, CA · Acute Care Hospital · CCN 050506
- French Hospital Medical CenterSan Luis Obispo, CA · Acute Care Hospital · CCN 050232
- Marian Regional Medical CenterSanta Maria, CA · Acute Care Hospital · CCN 050107
Practice locations
Addresses where Lewis Gamarra is enrolled with Medicare (CMS data updated 2026-10-02).
- 2115 10th St, Suite A2Los Osos, CA 93402 (805) 534‑9360
Specialties
- Hospitalistprimary
- Internal Medicinealso
Other hospitalists in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Medical College Of Wisconsin |
| Graduation year | 1988 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1124048608 |
| 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 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- 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