Richard Brian Mahan, PH.D.
Clinical Psychologist · Los Gatos, CA
Richard Brian Mahan, PH.D. is a clinical psychologist with a practice address in Los Gatos, California, and NPI 1417121476, issued on Apr 21, 2008. Check the license (California PSY23768, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Richard Brian Mahan
- Credential
- PH.D.
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- PSY23768 CA
Self-reported in NPPES; status is on the state search - Practice location
- 110 N Santa Cruz Ave, Los Gatos, CA 95030
- Phone
- (408) 409-0039
- Enumerated
- Apr 21, 2008
- Record last updated
- Nov 16, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (408) 620-1340
- Medicare enrollment
- Enrolled (PECOS I20230207003440); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 12,647 in California → Look up another NPI →
Also registered at 110 N Santa Cruz Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Judy Jackson, MFTMarriage & Family Therapist1629205224
Verify Richard Brian Mahan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PSY23768Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- County OF Santa ClaraSan Jose, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Richard Brian Mahan among 12,647 clinical psychologist records in California
Richard Brian Mahan, PH.D. is one of 12,647 clinical psychologist records with a practice address in California. 9% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 43% of them.
- NPI issued2008 · 43% of these records are older, 51% newer
- In a Medicare fileYes · 9% of these records are
- In the CMS Doctors and Clinicians fileYes · 19% of these records are
- Graduated2007 · median 2006 among the 2,424 with a school on file
- Record last updated2012 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TC0700X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
30 clinical psychologist records list a practice address in Los Gatos
They are 30 of the 1,905 NPPES records with a practice address in Los Gatos, and 12,647 clinical psychologist records in California.
All 12,647 in California → Every provider in Los Gatos → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Catherine Eckel, PH.D.Los Gatos, CA 950301497152326
- Nancy Haug, PHDLos Gatos, CA 950301912936063
- Robert Levit, PH.D.Los Gatos, CA 950301770960403
- Barbara Menoff, PHDLos Gatos, CA 950301821246885
- Eva Nicolas, PSYDLos Gatos, CA 950301942949581
- Ayelet Schafir-Hirshfeld, PHD CLINICAL PSYCHLos Gatos, CA 950301861687659
- Erica Simon, PH.D.Los Gatos, CA 950301578101598
- Michelle Spoelstra, PSY.D.Los Gatos, CA 950301861685224
Common questions
What is Richard Brian Mahan, PH.D.'s NPI number?
Richard Brian Mahan, PH.D.'s National Provider Identifier (NPI) is 1417121476, issued on Apr 21, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Richard Brian Mahan, PH.D. located?
The NPPES record lists a practice address at 110 N Santa Cruz Ave, Los Gatos, CA, 95030. Phone: (408) 409-0039. Providers update this record themselves, so call before visiting.
How can I verify Richard Brian Mahan, PH.D.'s license?
NPPES lists California license number PSY23768, as entered by the provider. 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. Medicare files from data.cms.gov. 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.