Quick answers
- Which hospitals does Mitchell C. Marubayashi work at?
- Medicare's official clinician data lists Mitchell C. Marubayashi at 4 hospitals: Enloe Health, Kaiser Foundation Hospital - Vacaville, Orchard Hospital and Woodland Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mitchell C. Marubayashi see patients?
- Medicare's clinician data lists 2 practice locations, including Vacaville, CA and Colusa, CA. Call before your visit to confirm the address.
- What is Mitchell C. Marubayashi's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Mitchell C. Marubayashi accept Medicare assignment?
- Yes. Medicare's clinician data says Mitchell C. Marubayashi 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.
- What is the phone number for Mitchell C. Marubayashi?
- (707) 624-4000, as listed in official Medicare / NPI Registry data.
- What is Mitchell C. Marubayashi's NPI number?
- 1093208779. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mitchell C. Marubayashi works
Medicare's Facility Affiliation Data lists Mitchell C. Marubayashi at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Enloe HealthChico, CA · Acute Care Hospital · CCN 050039
- Kaiser Foundation Hospital - VacavilleVacaville, CA · Acute Care Hospital · CCN 050767
- Orchard HospitalGridley, CA · Critical Access Hospital · CCN 051311
- Woodland Memorial HospitalWoodland, CA · Acute Care Hospital · CCN 050127
Practice locations
Addresses where Mitchell C. Marubayashi is enrolled with Medicare (CMS data updated 2026-10-02).
- 1 Quality DrVacaville, CA 95688 (707) 624‑4000
- 173 E Webster StColusa, CA 95932 (209) 287‑6308
Group practices
Medicare enrollment lists Mitchell C. Marubayashi as a member of these groups (CMS data updated 2026-10-02).
- Permanente Medical Group Inc10,996 clinicians in the group
- American Specialty Physicians Group Inc100 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Vacaville
Clinicians with the same Medicare primary specialty in Vacaville, CA — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Kansas City University Of Med & Biosciences, College Of Osteo Med |
| Graduation year | 2018 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1093208779 |
| 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