What is Sean Brennan's NPI number?

Sean Brennan's National Provider Identifier (NPI) is 1487354809, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Sean Brennan's specialty?

Sean Brennan is listed in the NPPES registry with a primary specialty of Behavior Technician (Behavioral Health & Social Service Providers).

Where is Sean Brennan located?

Sean Brennan's practice location on file with NPPES is 4848 Lakeview Ave Ste 202c, Yorba Linda, CA 92886-3454.

What is Sean Brennan's phone number?

The practice phone number listed in the NPPES registry for Sean Brennan is (714) 302-2346.

Is Sean Brennan's NPI active?

Yes — Sean Brennan's NPI (1487354809) is active in the NPPES registry as of the last update on 2026-06-05.

IndividualActive

Sean Brennan, AMFT

NPI 1487354809 · Behavior Technician · Yorba Linda, CA

Sean Brennan, AMFT is a Behavior Technician provider in Yorba Linda, CA (NPI 1487354809).

Provider details

NPI number: 1487354809
Entity type: Individual
Primary specialty: Behavior TechnicianBehavioral Health & Social Service Providers
Credential: AMFT
Sex: Male
Sole proprietor: No

Specialties & taxonomies

Behavior TechnicianPrimary106S00000X
Behavioral Health & Social Service Providers

Profile Score

Established profile(52/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
3 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

4848 Lakeview Ave Ste 202c

Yorba Linda, CA 92886-3454

Phone: (714) 302-2346

Street-level locationGet directions

More CA providers

Mailing address