Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Steven Mark Sultanoff, PH.D.

Psychologist in Costa Mesa, CA · enumerated 2006.

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

National Provider Identifier

1366470858

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Steven Mark Sultanoff

Credential PH.D.

Sex Male

Practice address 2900 Bristol St, Suite J-204, Costa Mesa, CA, 92626

Phone (714) 665-8801

Enumeration date Jun 30, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers · License PSY8687 (CA) Primary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

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 Steven Sultanoff?

The National Provider Identifier (NPI) for Steven Sultanoff is 1366470858, a Type 1 (individual) record in the CMS NPPES registry.

Where does Steven Sultanoff practice?

The practice location on file with NPPES is in Costa Mesa, 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 2007-07-08.