Nancy Sierra
NPI 1215427968 · Community Health Worker · San Francisco, CA
Nancy Sierra is a Community Health Worker provider in San Francisco, CA (NPI 1215427968).
Provider details
- NPI number
- 1215427968
- Entity type
- Individual
- Primary specialty
- Community Health WorkerOther Service Providers
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Other Service Providers
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
8 yrs in NPPES registry
- Profile completeness38% of score
83% 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
Mailing address
Registry dates
- Enumerated
- 2018-05-17
- Last updated
- 2023-11-06
- Certified
- 2023-11-06
Frequently asked questions
- What is Nancy Sierra's NPI number?
- Nancy Sierra's National Provider Identifier (NPI) is 1215427968, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nancy Sierra's specialty?
- Nancy Sierra is listed in the NPPES registry with a primary specialty of Community Health Worker (Other Service Providers).
- Where is Nancy Sierra located?
- Nancy Sierra's practice location on file with NPPES is 1563 Mission St, San Francisco, CA 94103-2543.
- What is Nancy Sierra's phone number?
- The practice phone number listed in the NPPES registry for Nancy Sierra is (415) 662-3700.
- Is Nancy Sierra's NPI active?
- Yes — Nancy Sierra's NPI (1215427968) is active in the NPPES registry as of the last update on 2023-11-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.