Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Paul D Guest, PH D
Clinical Psychologist in Patton, CA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1487606513
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Registry record
Entity type Individual (Type 1)
Name Paul D Guest
Credential PH D
Sex Male
Practice address 3102 East Highland Ave, Patton, CA, 92369
Phone (909) 425-7000
Fax (909) 425-7520
Enumeration date May 17, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License PSY10903 (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
Where does Paul Guest practice?
The practice location on file with NPPES is in Patton, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Paul Guest?
The National Provider Identifier (NPI) for Paul Guest is 1487606513, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Edward Case Psychiatry Physician · Patton, CA NPI 1407808785 Ron Foo Psychiatry Physician · Patton, CA NPI 1578515813 Christopher Sangdahl Psychiatry Physician · Patton, CA NPI 1700838109 Jette Warka Psychologist · Patton, CA NPI 1710939137 James Rosenthal Psychiatry Physician · Patton, CA NPI 1942252382 Yongoh Lhim Psychiatry Physician · Patton, CA NPI 1386696565 April Wursten Psychologist · Patton, CA NPI 1619929072 Nellie Anosa Psychiatry Physician · Patton, CA NPI 1568414936
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.