George Koumaras, PHD
Psychologist · San Marcos, CA
George Koumaras, PHD is a psychologist with a practice address in San Marcos, California, and NPI 1154377901, issued on May 25, 2006. Check the license with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- George Koumaras
- Credential
- PHD
- Primary taxonomy
- Psychologist 103T00000X
- Practice location
- 277 Rancheros Dr Ste 301, San Marcos, CA 92069
- Phone
- (760) 471-4073
- Enumerated
- May 25, 2006
- Record last updated
- May 6, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (619) 528-4625
- Entity
- Type 1 · individual
Also registered at 277 Rancheros Dr Ste 301
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Alicia Burke, DNPPsychiatric/Mental Health Nurse Practitioner1891233649
- Darryl Butson, LMFTMarriage & Family Therapist1538769393
- Eloisa DietrichPsychiatric/Mental Health Nurse Practitioner1134512288
Verify George Koumaras in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Psychologist providers in California
There are 7,304 psychologist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other psychologist records in California
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- Elham Abouhamzeh, PSY.DIrvine, CA1386092880
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- Mackenzie Abraham, PHDRedondo Beach, CA1881053833
- Sandra Abraham, PSYDSanta Fe Springs, CA1427467851
Common questions
What is George Koumaras, PHD's NPI number?
George Koumaras, PHD's National Provider Identifier (NPI) is 1154377901, issued on May 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is George Koumaras, PHD located?
The NPPES record lists a practice address at 277 Rancheros Dr Ste 301, San Marcos, CA, 92069. Phone: (760) 471-4073. Providers update this record themselves, so call before visiting.
How can I verify George Koumaras, PHD's license?
Search the California board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.