Jack Brennan
NPI 1740543107 · Marriage & Family Therapist · Los Angeles, CA
Jack Brennan is a Marriage & Family Therapist provider in Los Angeles, CA (NPI 1740543107).
Provider details
- NPI number
- 1740543107
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
- License
- 116210 (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
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
Mailing address
Registry dates
- Enumerated
- 2012-06-20
- Last updated
- 2021-12-09
- Certified
- 2021-12-09
Frequently asked questions
- What is Jack Brennan's NPI number?
- Jack Brennan's National Provider Identifier (NPI) is 1740543107, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jack Brennan's specialty?
- Jack Brennan is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Jack Brennan located?
- Jack Brennan's practice location on file with NPPES is 1554 S Sepulveda Blvd Ste 212, Los Angeles, CA 90025-3359.
- What is Jack Brennan's phone number?
- The practice phone number listed in the NPPES registry for Jack Brennan is (619) 602-7353.
- Is Jack Brennan's NPI active?
- Yes — Jack Brennan's NPI (1740543107) is active in the NPPES registry as of the last update on 2021-12-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.