NPI Portal NPI Lookup & Verification

Colleen Carlos

Colleen Carlos is a Behavior Analyst provider (Behavior Analyst) practicing in Fairfield, CA, registered in the NPPES registry with NPI 1831643634 since 2016.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1831643634
Entity type Individual (Type 1)
Name Colleen Carlos
Sex Female
Practice address Fairfield, CA, 94533
Phone 7073863830
Enumeration date 2016-08-09
Last updated in NPPES 2016-08-09

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code Specialty Primary License State
103K00000X Behavior Analyst Primary CA
Copy-ready billing details
Provider: Colleen Carlos
NPI: 1831643634
Taxonomy: 103K00000X (Behavior Analyst)
Address: Fairfield, CA, 94533

Verify this record

Cross-check NPI 1831643634 against the authoritative CMS record: view Colleen Carlos 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

How do I verify Colleen Carlos's NPI record?
Cross-check NPI 1831643634 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1831643634 active?
Yes — as of the latest NPPES snapshot, NPI 1831643634 is active (record last updated 2016-08-09).

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2016-08-09.