Psychologists in San Marcos, CA
Browse 9 Psychologist providers listed in NPPES with a practice address in San Marcos, California.
How San Marcos compares with the U.S.
9 active Psychologists list a practice address in San Marcos, CA in the NPI registry.
With fewer than 10 clinicians, rates per 100,000 residents are not reliable enough to compare.
Too few Psychologists in San Marcos are listed in the CMS Medicare file to report Medicare assignment or telehealth shares.
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 Registry addresses can be out of date.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.
Syed M. Imam
Psychologist
Dr. George Koumaras , PhD
Psychologist
Dr. Eric R Pevney , PhD
Psychologist
Dr. Leon Altamirano , PsyD
Psychologist
Dr. Danielle I Flynn , PhD
Psychologist
Dr. Shelli Jackson , PhD
Psychologist
Dr. Charmaine Grace Lowe , PhD
Psychologist
Dr. Nathan Kyle Simmons , PsyD
Psychologist
Dr. Ryan Ford Stevenson , PhD, MSW
Psychologist
Frequently Asked Questions about Psychologist in San Marcos
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 San Marcos
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Cities with the most listed practitioners first.