Leslie Sifferman, MFT
NPI 1063976892 · Marriage & Family Therapist · Mountain View, CA
Leslie Sifferman, MFT is a Marriage & Family Therapist provider in Mountain View, CA (NPI 1063976892).
Provider details
- NPI number
- 1063976892
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- MFT
- Sex
- Female
- Sole proprietor
- Yes
- License
- 37837 (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
7 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
- 2019-01-25
- Last updated
- 2019-01-25
Frequently asked questions
- What is Leslie Sifferman's NPI number?
- Leslie Sifferman's National Provider Identifier (NPI) is 1063976892, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leslie Sifferman's specialty?
- Leslie Sifferman is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Leslie Sifferman located?
- Leslie Sifferman's practice location on file with NPPES is 1059 El Monte Ave Ste B, Mountain View, CA 94040-4601.
- What is Leslie Sifferman's phone number?
- The practice phone number listed in the NPPES registry for Leslie Sifferman is (408) 930-2715.
- Is Leslie Sifferman's NPI active?
- Yes — Leslie Sifferman's NPI (1063976892) is active in the NPPES registry as of the last update on 2019-01-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.