IndividualActive
Sarah Nighswander, MSW
NPI 1649554833 · Social Worker · San Francisco, CA
Sarah Nighswander, MSW is a Social Worker provider in San Francisco, CA (NPI 1649554833).
Provider details
- NPI number
- 1649554833
- Entity type
- Individual
- Primary specialty
- Social WorkerBehavioral Health & Social Service Providers
- Credential
- MSW
- Sex
- Female
- Sole proprietor
- No
- License
- 00253480 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(81/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
14 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
982 Mission St
2nd Floor
San Francisco, CA 94103-2911
Phone: (415) 597-9344
Street-level locationGet directions
Mailing address
982 Mission St
San Francisco, CA 94103-2911
Registry dates
- Enumerated
- 2011-10-05
- Last updated
- 2011-10-05
Frequently asked questions
- What is Sarah Nighswander's NPI number?
- Sarah Nighswander's National Provider Identifier (NPI) is 1649554833, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sarah Nighswander's specialty?
- Sarah Nighswander is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).
- Where is Sarah Nighswander located?
- Sarah Nighswander's practice location on file with NPPES is 982 Mission St, San Francisco, CA 94103-2911.
- What is Sarah Nighswander's phone number?
- The practice phone number listed in the NPPES registry for Sarah Nighswander is (415) 597-9344.
- Is Sarah Nighswander's NPI active?
- Yes — Sarah Nighswander's NPI (1649554833) is active in the NPPES registry as of the last update on 2011-10-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.