Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Brian James Marrier, BCAB
Behavior Analyst in Clearlake, CA · enumerated 2017.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1144757261
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Registry record
Entity type Individual (Type 1)
Name Brian James Marrier
Credential BCAB
Sex Male
Practice address 4456 Manzanita Ave # 2, Clearlake, CA, 95422
Phone (707) 461-5027
Enumeration date May 19, 2017
Last updated in NPPES Jul 21, 2022
Taxonomy & licenses
103K00000X Behavior Analyst Behavioral Health & Social Service Providers · License 1-15-18196 (CA) Primary
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.
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 2026-07-13. Provider record last updated 2022-07-21.