IndividualActive
Alexandra Siegel
NPI 1356978811 · Registered Nurse · San Francisco, CA
Alexandra Siegel is a Registered Nurse provider in San Francisco, CA (NPI 1356978811).
Provider details
- NPI number
- 1356978811
- Entity type
- Individual
- Primary specialty
- Registered NurseNursing Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 95215402 (CA)
Specialties & taxonomies
Nursing Service Providers
Profile Score
Established profile(64/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
550 16th St Fl 4
San Francisco, CA 94143-2549
Phone: (415) 476-1435
Street-level locationGet directions
Mailing address
550 16th St Fl 4
San Francisco, CA 94143-2549
Registry dates
- Enumerated
- 2020-03-25
- Last updated
- 2026-03-30
- Certified
- 2026-03-30
Frequently asked questions
- What is Alexandra Siegel's NPI number?
- Alexandra Siegel's National Provider Identifier (NPI) is 1356978811, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alexandra Siegel's specialty?
- Alexandra Siegel is listed in the NPPES registry with a primary specialty of Registered Nurse (Nursing Service Providers).
- Where is Alexandra Siegel located?
- Alexandra Siegel's practice location on file with NPPES is 550 16th St Fl 4, San Francisco, CA 94143-2549.
- What is Alexandra Siegel's phone number?
- The practice phone number listed in the NPPES registry for Alexandra Siegel is (415) 476-1435.
- Is Alexandra Siegel's NPI active?
- Yes — Alexandra Siegel's NPI (1356978811) is active in the NPPES registry as of the last update on 2026-03-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.