Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Sharon Lynn Phelps, PHD
Clinical Psychologist in Irvine, CA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1629064100
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Registry record
Entity type Individual (Type 1)
Name Dr. Sharon Lynn Phelps
Credential PHD
Sex Female
Practice address 18952 Macarthur Blvd, Suite 350, Irvine, CA, 92612
Phone (949) 474-4063
Fax (949) 660-7223
Enumeration date Sep 21, 2005
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License PSY 5571 (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.
Frequently asked questions
How do I verify Sharon Phelps's NPI record?
Cross-check NPI 1629064100 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1629064100 active?
Yes, as of the latest NPPES snapshot, NPI 1629064100 is active (record last updated 2007-07-08).
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.