Wei Mon Lew, PH.D.
Clinical Psychologist · San Mateo, CA
Wei Mon Lew, PH.D. is a clinical psychologist with a practice address in San Mateo, California, and NPI 1427134733, issued on Oct 29, 2006. Check the license (California PSY4074, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Wei Mon Lew
- Credential
- PH.D.
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- PSY4074 CA
Self-reported in NPPES; status is on the state search - Practice location
- 421 27TH Ave, San Mateo, CA 94403
- Phone
- (650) 573-9765
- Enumerated
- Oct 29, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (415) 433-0953
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 12,647 in California → Look up another NPI →
Verify Wei Mon Lew in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PSY4074Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Wei Mon Lew among 12,647 clinical psychologist records in California
Wei Mon Lew, 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 not. Its NPI, issued in 2006, is newer than 1% of them.
- NPI issued2006 · 1% of these records are older, 80% newer
- In a Medicare fileNo · 9% of these records are
- In the CMS Doctors and Clinicians fileNo · 19% of these records are
- Record last updated2007 · 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).
65 clinical psychologist records list a practice address in San Mateo
They are 65 of the 3,909 NPPES records with a practice address in San Mateo, and 12,647 clinical psychologist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 12,647 in California → Every provider in San Mateo → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Lauren Allerhand, PSY.D.San Mateo, CA 944031346763067
- Ernestina Araiza, PSY.D.San Mateo, CA 944031568608636
- Sherri BurwellSan Mateo, CA 944031750417085
- Courtney Farmer, PH.D.San Mateo, CA 944031336690924
- Raisa GarciaSan Mateo, CA 944031770918005
- Daniele Levy, PHDSan Mateo, CA 944031902166465
- Jazmin Llamas, PHDSan Mateo, CA 944031972081933
- Lorena Michel, PSY.D.San Mateo, CA 944031003955691
Common questions
What is Wei Mon Lew, PH.D.'s NPI number?
Wei Mon Lew, PH.D.'s National Provider Identifier (NPI) is 1427134733, issued on Oct 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Wei Mon Lew, PH.D. located?
The NPPES record lists a practice address at 421 27TH Ave, San Mateo, CA, 94403. Phone: (650) 573-9765. Providers update this record themselves, so call before visiting.
How can I verify Wei Mon Lew, PH.D.'s license?
NPPES lists California license number PSY4074, 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. 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.