Sam Geffner, MFT
NPI 1134266323 · Marriage & Family Therapist · San Francisco, CA
Sam Geffner, MFT is a Marriage & Family Therapist provider in San Francisco, CA (NPI 1134266323).
Provider details
- NPI number
- 1134266323
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- MFT
- Sex
- Male
- Sole proprietor
- Yes
- License
- MFC 6259 (CA)
Specialties & taxonomies
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
19 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
Mailing address
Registry dates
- Enumerated
- 2007-01-30
- Last updated
- 2007-07-08
Frequently asked questions
- What is Sam Geffner's NPI number?
- Sam Geffner's National Provider Identifier (NPI) is 1134266323, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sam Geffner's specialty?
- Sam Geffner is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Sam Geffner located?
- Sam Geffner's practice location on file with NPPES is 521 Clipper St, San Francisco, CA 94114-3604.
- What is Sam Geffner's phone number?
- The practice phone number listed in the NPPES registry for Sam Geffner is (415) 648-7744.
- Is Sam Geffner's NPI active?
- Yes — Sam Geffner's NPI (1134266323) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.