Psychologists in Diamond Bar, CA
Browse 3 Psychologist providers listed in NPPES with a practice address in Diamond Bar, California.
How Diamond Bar compares with the U.S.
3 active Psychologists list a practice address in Diamond Bar, CA in the NPI registry.
With fewer than 10 clinicians, rates per 100,000 residents are not reliable enough to compare.
None of the Psychologists in Diamond Bar are listed in the CMS Medicare file.
These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.
Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com · Methodology
Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026.
Dr. Thomas Strand Ball , PhD
Psychologist
Dr. Sona Khachikyan , PhD
Psychologist
Dr. Tony Wu , PhD, ABPP
Psychologist
Frequently Asked Questions about Psychologist in Diamond Bar
Each practitioner profile shows the NUCC taxonomy code and any state license number the practitioner reported to NPPES, plus a link to the California licensing board lookup. NPPES entries are self-reported; current license status is published only by the state board.
This list shows NPI records that are active in NPPES. A deactivated NPI keeps its profile with the deactivation date and practice history; find it with the site search by name or NPI number.
Other Specialties in Diamond Bar
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