Nathan Ewigman
Clinical Psychologist · San Bruno, CA
Nathan Ewigman is a clinical psychologist with a practice address in San Bruno, California, and NPI 1104298603, issued on Oct 22, 2015. Check the license (California 27570, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Nathan Ewigman
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- 27570 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1001 Sneath LN, San Bruno, CA 94066
- Phone
- (650) 615-6050
- Enumerated
- Oct 22, 2015
- Record last updated
- Oct 22, 2015 (not updated in 11 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20190820000700); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 12,647 in California → Look up another NPI →
Also registered at 1001 Sneath LN
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Christina Barragan, BCATBehavior Analyst1609369156
- Kathleen Bennett, LCSWSocial Worker1710082201
- Robert Bonadies, EDDPsychologist1134285349
- Laura Breckenridge, NPSports Medicine (Internal Medicine) Physician1013091594
- Jada ChappelBehavior Analyst1326690462
Verify Nathan Ewigman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 27570Check 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 San MateoSan Mateo, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nathan Ewigman among 12,647 clinical psychologist records in California
Nathan Ewigman 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 2015, is newer than 74% of them.
- NPI issued2015 · 74% of these records are older, 23% newer
- In a Medicare fileYes · 9% of these records are
- In the CMS Doctors and Clinicians fileYes · 19% of these records are
- Graduated2014 · median 2006 among the 2,424 with a school on file
- Record last updated2015 · 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).
11 clinical psychologist records list a practice address in San Bruno
They are 11 of the 1,579 NPPES records with a practice address in San Bruno, and 12,647 clinical psychologist records in California.
All 12,647 in California → Every provider in San Bruno → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Oscar CervantesSan Bruno, CA 940661629224878
- Eric Hooe, PH.D.San Bruno, CA 940661841341534
- Ori Kochavi, PH.D.San Bruno, CA 940661578620464
- Kelly Koo, PH.D.San Bruno, CA 940661740521970
- Kathleen Mulherin, PH.D.San Bruno, CA 940661619033248
- Kate Riley, PHDSan Bruno, CA 940661508926783
- Mario SandovalSan Bruno, CA 940661750429932
- Bradley Siu, PSY.D.San Bruno, CA 940661831244458
Common questions
What is Nathan Ewigman's NPI number?
Nathan Ewigman's National Provider Identifier (NPI) is 1104298603, issued on Oct 22, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Nathan Ewigman located?
The NPPES record lists a practice address at 1001 Sneath LN, San Bruno, CA, 94066. Phone: (650) 615-6050. Providers update this record themselves, so call before visiting.
How can I verify Nathan Ewigman's license?
NPPES lists California license number 27570, 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.