Quick answers
- Where does John A. Gianitsis see patients?
- Medicare's clinician data lists 3 practice locations, including San Francisco, CA, Daly City, CA and Vallejo, CA. Call before your visit to confirm the address.
- What is John A. Gianitsis's specialty?
- Medicare lists Certified Registered Nurse Anesthetist (CRNA) as the primary specialty.
- Does John A. Gianitsis accept Medicare assignment?
- Yes. Medicare's clinician data says John A. Gianitsis 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 John A. Gianitsis?
- (415) 997-6410, as listed in official Medicare / NPI Registry data.
- What is John A. Gianitsis's NPI number?
- 1346607520. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where John A. Gianitsis is enrolled with Medicare (CMS data updated 2026-10-02).
- 711 Van Ness Ave, Suite 230San Francisco, CA 94102 (415) 997‑6410
- 901 Campus Dr, Suite 102Daly City, CA 94015 (650) 991‑2000
- 975 Sereno DrVallejo, CA 94589 (707) 651‑1000
Group practices
Medicare enrollment lists John A. Gianitsis as a member of these groups (CMS data updated 2026-10-02).
- Permanente Medical Group Inc10,996 clinicians in the group
- In Somno Securitas a Professional Nursing Corporation19 clinicians in the group
Specialties
Find other clinicians: Certified Registered Nurse Anesthetist (CRNA), California →
Other nurse anesthetists in San Francisco
Clinicians with the same Medicare primary specialty in San Francisco, CA — not a recommendation.
Clinician information
| Credential | CNA |
|---|---|
| Graduation year | 2016 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1346607520 |
| 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
- 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