Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Arroyo Psychological Group

Q: What is the NPI number for Arroyo Psychological Group?

The NPI for Arroyo Psychological Group is 1528270675, a Type 2 (organization) record in the CMS NPPES registry.

Cognitive & Behavioral Psychologist in Alhambra, CA · enumerated 2007 · authorized official Mark Hassan, President.

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

National Provider Identifier

1528270675

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Registry record

Entity type Organization (Type 2)

Legal business name Arroyo Psychological Group

Practice address 1961 W Huntington Dr Ste 202, Alhambra, CA, 91801

Phone (626) 458-5444

Fax (462) 645-8067

Enumeration date May 3, 2007

Last updated in NPPES Sep 11, 2025

Taxonomy & classification

102L00000X Psychoanalyst Behavioral Health & Social Service Providers Secondary

103T00000X Psychologist Behavioral Health & Social Service Providers · License PSY 5298 (CA) Secondary

103T00000X Psychologist Behavioral Health & Social Service Providers · License PSY 5896 (CA) Secondary

103TB0200X Cognitive & Behavioral Psychologist Behavioral Health & Social Service Providers Primary

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers Secondary

103TC2200X Clinical Child & Adolescent Psychologist Behavioral Health & Social Service Providers Secondary

103TP0814X Psychoanalysis Psychologist Behavioral Health & Social Service Providers Secondary

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers Secondary

Authorized official

Name Mark Hassan

Title President

Phone (626) 458-5444

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

Who is the authorized official for Arroyo Psychological Group?

NPPES lists Mark Hassan (President) as the authorized official for this organization.

What is the NPI number for Arroyo Psychological Group?

The NPI for Arroyo Psychological Group is 1528270675, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.