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

William Bernard Young, PHD

Clinical Psychologist in Orange, CA · enumerated 2006 · practices at Dominic Ong Lmft.

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

National Provider Identifier

1134220247

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Registry record

Entity type Individual (Type 1)

Name William Bernard Young

Credential PHD

Sex Male

Practice address Orange, CA, 92867

Phone (714) 633-7247

Fax (714) 633-7224

Enumeration date Sep 25, 2006

Last updated in NPPES Jan 28, 2021

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

Taxonomy & licenses

103TP0814X Psychoanalysis Psychologist Behavioral Health & Social Service Providers · License PSY9978 (CA) Secondary

103TP2701X Group Psychotherapy Psychologist Behavioral Health & Social Service Providers · License PSY9978 (CA) Secondary

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License PSY9978 (CA) Primary

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

Other identifiers

Identifier	Type	State	Issuer
00PL99780	Other	CA	BLUE SHIELD
PSY099780	Other	CA	MEDICAL

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

Is NPI 1134220247 active?

Yes, as of the latest NPPES snapshot, NPI 1134220247 is active (record last updated 2021-01-28).

How do I verify William Young's NPI record?

Cross-check NPI 1134220247 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Amber Adams Marriage & Family Therapist · Orange, CA NPI 1972795524 Carlos Alcantara Clinical Social Worker · Orange, CA NPI 1154584365 Angela Arendt Marriage & Family Therapist · Orange, CA NPI 1730328923 Melanie Reyes Marriage & Family Therapist · Orange, CA NPI 1316288954 Dominic Ong Marriage & Family Therapist · Orange, CA NPI 1689094450 Sherry Hastings Marriage & Family Therapist · Orange, CA NPI 1386196285 Hiroko Saeki Marriage & Family Therapist · Orange, CA NPI 1023641891 Dominic Ong Lmft Mental Health Clinic/Center (Including Community Mental Health Center) · Orange, CA NPI 1831860584

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-01-28.