Leon Diep
Counselor · San Jose, CA
Leon Diep is a counselor with a practice address in San Jose, California, and NPI 1528212008, issued on Nov 10, 2008. 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
- Leon Diep
- Primary taxonomy
- Counselor 101Y00000X
- Practice location
- 210 N 4TH St Ste 100, San Jose, CA 95112
- Phone
- (408) 295-5288
- Enumerated
- Nov 10, 2008
- Record last updated
- Nov 10, 2008 (not updated in 18 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest counselor records → All 13,723 in California → Look up another NPI →
Also registered at 210 N 4TH St Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Leon Diep 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
Leon Diep among 13,723 counselor records in California
Leon Diep is one of 13,723 counselor records with a practice address in California. under 1% 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 2008, is newer than 17% of them.
- NPI issued2008 · 17% of these records are older, 76% newer
- In a Medicare fileNo · under 1% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2008 · 81% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 101Y00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
521 counselor records list a practice address in San Jose
They are 521 of the 20,925 NPPES records with a practice address in San Jose, and 13,723 counselor records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 13,723 in California → Every provider in San Jose → Counselor nationwide →
The 8 counselor records with the nearest ZIP codes
- Ivan Alan, MSSan Jose, CA 951121689742041
- Sophany BaySan Jose, CA 951121043388523
- Ofelia Chavarin, MHSSan Jose, CA 951121790853257
- Felicia EliazarSan Jose, CA 951121750459202
- Jose EstradaSan Jose, CA 951121043388507
- Loren GissibleSan Jose, CA 951121750459137
- Michelle JeungSan Jose, CA 951121972671436
- Ana Leon, BSWSan Jose, CA 951121497823850
Common questions
What is Leon Diep's NPI number?
Leon Diep's National Provider Identifier (NPI) is 1528212008, issued on Nov 10, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Leon Diep located?
The NPPES record lists a practice address at 210 N 4TH St Ste 100, San Jose, CA, 95112. Phone: (408) 295-5288. Providers update this record themselves, so call before visiting.
How can I verify Leon Diep'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.