Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Matthew Ryan Chester, PH.D.
Psychologist in San Clemente, CA · enumerated 2020.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1922631928
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Registry record
Entity type Individual (Type 1)
Name Dr. Matthew Ryan Chester
Credential PH.D.
Sex Male
Practice address 101 W Avenida Vista Hermosa Ste 120, San Clemente, CA, 92672
Phone (949) 891-0328
Enumeration date Feb 18, 2020
Last updated in NPPES Jul 30, 2020
Taxonomy & licenses
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 Matthew Chester's NPI record?
Cross-check NPI 1922631928 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1922631928 active?
Yes, as of the latest NPPES snapshot, NPI 1922631928 is active (record last updated 2020-07-30).
Other providers at this practice address
Browse all → Brendon Rearick Health & Wellness Coach · San Clemente, CA NPI 1497410906 Emily Jennings Health & Wellness Coach · San Clemente, CA NPI 1194480145 Chloe Divine Case Manager/Care Coordinator · San Clemente, CA NPI 1194656280 Camille Zuniga Case Manager/Care Coordinator · San Clemente, CA NPI 1912833088
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-07-30.