Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Christine Larson

Addiction (Substance Use Disorder) Counselor in Los Alamitos, CA · enumerated 2016.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1851835276

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Christine Larson

Sex Female

Practice address 4388 Katella Ave, Los Alamitos, CA, 90720

Phone (562) 596-0050

Enumeration date Dec 5, 2016

Last updated in NPPES Dec 5, 2016

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Christine Larson?

The National Provider Identifier (NPI) for Christine Larson is 1851835276, a Type 1 (individual) record in the CMS NPPES registry.

Where does Christine Larson practice?

The practice location on file with NPPES is in Los Alamitos, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-12-05.