Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

William J Dess, Ph.D. Clinical Psychology A Prof Corp.

Clinical Psychologist in Encinitas, CA · enumerated 2018 · authorized official William Dess, Psychologist/President.

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

National Provider Identifier

1881170165

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Registry record

Entity type Organization (Type 2)

Legal business name William J Dess, Ph.D. Clinical Psychology A Prof Corp.

Practice address 741 Garden View Ct., Suite 211, Encinitas, CA, 92024

Phone (760) 479-0557

Fax (760) 479-0781

Enumeration date Jul 19, 2018

Last updated in NPPES Jul 19, 2018

Taxonomy & classification

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License PSY5035 (CA) Primary

Authorized official

Name William Dess

Title Psychologist/President

Phone (760) 533-2225

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

Who is the authorized official for William J Dess, Ph.D. Clinical Psychology A Prof Corp.?

NPPES lists William Dess (Psychologist/President) as the authorized official for this organization.

What is the NPI number for William J Dess, Ph.D. Clinical Psychology A Prof Corp.?

The NPI for William J Dess, Ph.D. Clinical Psychology A Prof Corp. is 1881170165, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-07-19.