IndividualActive
Sarah Hammill
NPI 1871845354 · Social Worker · San Rafael, CA
Sarah Hammill is a Social Worker provider in San Rafael, CA (NPI 1871845354).
Provider details
- NPI number
- 1871845354
- Entity type
- Individual
- Primary specialty
- Social WorkerBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(72/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
13 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
3270 Kerner Blvd
San Rafael, CA 94901-4840
Phone: (415) 473-2100
Street-level locationGet directions
Mailing address
401 Panoramic Way
Berkeley, CA 94704-2532
Registry dates
- Enumerated
- 2012-10-09
- Last updated
- 2012-10-09
Frequently asked questions
- What is Sarah Hammill's NPI number?
- Sarah Hammill's National Provider Identifier (NPI) is 1871845354, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sarah Hammill's specialty?
- Sarah Hammill is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).
- Where is Sarah Hammill located?
- Sarah Hammill's practice location on file with NPPES is 3270 Kerner Blvd, San Rafael, CA 94901-4840.
- What is Sarah Hammill's phone number?
- The practice phone number listed in the NPPES registry for Sarah Hammill is (415) 473-2100.
- Is Sarah Hammill's NPI active?
- Yes — Sarah Hammill's NPI (1871845354) is active in the NPPES registry as of the last update on 2012-10-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.