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

Mr. Sean Frederiksen

Marriage & Family Therapist in Riverside, CA · enumerated 2008 · practices at Riverside County Department of Mental Health.

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

National Provider Identifier

1265694582

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Registry record

Entity type Individual (Type 1)

Name Mr. Sean Frederiksen

Sex Male

Practice address Riverside, CA, 92503

Phone (951) 358-3047

Enumeration date Jun 27, 2008

Last updated in NPPES Jun 27, 2008

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

Taxonomy & licenses

106H00000X Marriage & Family Therapist 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.

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Frequently asked questions

What is the NPI number for Sean Frederiksen?

The National Provider Identifier (NPI) for Sean Frederiksen is 1265694582, a Type 1 (individual) record in the CMS NPPES registry.

Where does Sean Frederiksen practice?

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

Other providers at this practice address

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Riverside County Department of Mental Health Case Management Agency · Riverside, CA NPI 1386829976

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-06-27.