NPI Portal NPI Lookup & Verification

Brian James Marrier, BCAB

Brian James Marrier is a Behavior Analyst provider (Behavior Analyst) practicing in Clearlake, CA, registered in the NPPES registry with NPI 1144757261 since 2017.

✓ Active NPI ✓ Valid NPI checksum

NPI 1144757261
Entity type Individual (Type 1)
Name Brian James Marrier
Credential BCAB
Sex Male
Practice address 4456 MANZANITA AVE # 2, Clearlake, CA, 95422
Phone 7074615027
Enumeration date 2017-05-19
Last updated in NPPES 2022-07-21

Taxonomy & licenses

Taxonomy code Specialty Primary License State
103K00000X Behavior Analyst Primary 1-15-18196 CA
Copy-ready billing details
Provider: Brian Marrier, BCAB
NPI: 1144757261
Taxonomy: 103K00000X (Behavior Analyst)
Address: 4456 MANZANITA AVE # 2, Clearlake, CA, 95422

Verify this record

Cross-check NPI 1144757261 against the authoritative CMS record: view Brian James Marrier on the official NPPES registry .

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.

Frequently asked questions

Where does Brian Marrier practice?
The practice location on file with NPPES is in Clearlake, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Brian Marrier?
The National Provider Identifier (NPI) for Brian Marrier is 1144757261, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2022-07-21.