NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Rita Seiden, L.C.S.W.

Clinical Social Worker in Marina Del Rey, CA · enumerated 2005.

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

National Provider Identifier

1083613939

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Rita Seiden
Credential L.C.S.W.
Sex Female
Practice address Marina Del Rey, CA, 90292
Phone (718) 415-8213
Enumeration date Jul 21, 2005
Last updated in NPPES May 30, 2018

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

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 28925 (CA) Secondary
1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License R030612 (NY) Primary
LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW credential

Other identifiers

Identifier Type State Issuer
28925 Other CA LCSW
01518161 Medicaid NY -
R030612 Other NY NYS LCSW

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

Where does Rita Seiden practice?
The practice location on file with NPPES is in Marina Del Rey, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Rita Seiden?
The National Provider Identifier (NPI) for Rita Seiden is 1083613939, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-05-30.