Quick answers
- Which hospitals does Alex Rainow work at?
- Medicare's official clinician data lists Alex Rainow at 5 hospitals: Marinhealth Medical Center, Novato Community Hospital, Providence Queen of the Valley Medical Center, Providence Santa Rosa Memorial Hospital and Sonoma Valley Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Alex Rainow see patients?
- Medicare's clinician data lists 1 practice location in San Francisco, CA. Call before your visit to confirm the address.
- What is Alex Rainow's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty, and also Internal Medicine.
- Does Alex Rainow accept Medicare assignment?
- Medicare's clinician data says Alex Rainow may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- Does Alex Rainow offer telehealth?
- Medicare's clinician data says Alex Rainow offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Alex Rainow?
- (415) 476-1000, as listed in official Medicare / NPI Registry data.
- What is Alex Rainow's NPI number?
- 1255577904. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Alex Rainow works
Medicare's Facility Affiliation Data lists Alex Rainow at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Marinhealth Medical CenterGreenbrae, CA · Acute Care Hospital · CCN 050360
- Novato Community HospitalNovato, CA · Acute Care Hospital · CCN 050131
- Providence Queen of the Valley Medical CenterNapa, CA · Acute Care Hospital · CCN 050009
- Providence Santa Rosa Memorial HospitalSanta Rosa, CA · Acute Care Hospital · CCN 050174
- Sonoma Valley HospitalSonoma, CA · Acute Care Hospital · CCN 050090
Practice locations
Addresses where Alex Rainow is enrolled with Medicare (CMS data updated 2026-10-02).
- 505 Parnassus AveSan Francisco, CA 94143 (415) 476‑1000
Group practices
Medicare enrollment lists Alex Rainow as a member of this group (CMS data updated 2026-10-02).
- Regents Univ of California UCSF283 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in California →
Other cardiologists in San Francisco
Clinicians with the same Medicare primary specialty in San Francisco, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Albany Medical College Of Union University |
| Graduation year | 2007 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1255577904 |
| 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