IndividualActive
Lauren Karchmer
NPI 1518821065 · Social Worker · San Francisco, CA
Lauren Karchmer is a Social Worker provider in San Francisco, CA (NPI 1518821065).
Provider details
- NPI number
- 1518821065
- Entity type
- Individual
- Primary specialty
- Social WorkerBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Basic profile(47/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in 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
3630 Divisadero St
San Francisco, CA 94123-1411
Phone: (415) 749-3516
Street-level locationGet directions
Mailing address
3086 Market St
San Francisco, CA 94114-1825
Registry dates
- Enumerated
- 2025-12-10
- Last updated
- 2025-12-10
- Certified
- 2025-12-10
Frequently asked questions
- What is Lauren Karchmer's NPI number?
- Lauren Karchmer's National Provider Identifier (NPI) is 1518821065, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lauren Karchmer's specialty?
- Lauren Karchmer is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).
- Where is Lauren Karchmer located?
- Lauren Karchmer's practice location on file with NPPES is 3630 Divisadero St, San Francisco, CA 94123-1411.
- What is Lauren Karchmer's phone number?
- The practice phone number listed in the NPPES registry for Lauren Karchmer is (415) 749-3516.
- Is Lauren Karchmer's NPI active?
- Yes — Lauren Karchmer's NPI (1518821065) is active in the NPPES registry as of the last update on 2025-12-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.