NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Miss Maria C Castellanos, M.A.

Mental Health Counselor in San Diego, CA · enumerated 2010.

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

National Provider Identifier

1316279318

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Miss Maria C Castellanos
Credential M.A.
Sex Female
Practice address 3025 Beyer Blvd Ste E-102, San Diego, CA, 92154
Phone (619) 428-1000
Fax (619) 428-1091
Enumeration date Feb 2, 2010
Last updated in NPPES Feb 2, 2010

Taxonomy & licenses

101YM0800X Mental Health 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 Maria Castellanos?
The National Provider Identifier (NPI) for Maria Castellanos is 1316279318, a Type 1 (individual) record in the CMS NPPES registry.
Where does Maria Castellanos practice?
The practice location on file with NPPES is in San Diego, 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 2010-02-02.