Jack Yen, MD
Psychiatry Physician · Palo Alto, CA
Jack Yen, MD is a psychiatry physician with a practice address in Palo Alto, California, and NPI 1144428483, issued on Jul 9, 2007. Check the license (California A118843, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Jack Yen
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- A118843 CA
Self-reported in NPPES; status is on the state search - Practice location
- 512 Hamilton Ave, Palo Alto, CA 94301
- Phone
- (650) 250-5615
- Enumerated
- Jul 9, 2007
- Record last updated
- Mar 17, 2018 (not updated in 8 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Also registered at 512 Hamilton Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Elisabeth Austin, PSY.D.Clinical Psychologist1639522022
- Brynn Ewen, D.P.M.Podiatrist1649343740
- Julia Schirm, PHDClinical Psychologist1821455791
- Christiane Zenteno, PHDClinical Psychologist1972632719
Verify Jack Yen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A118843Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
215 psychiatry physician records list a practice address in Palo Alto
They are 215 of the 7,617 NPPES records with a practice address in Palo Alto, and 8,673 psychiatry physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 215 in Palo Alto → All 8,673 in California → Every provider in Palo Alto →
Other psychiatry physician records in California
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- Mekabiz Abaian, MDSan Bernardino, CA1891090163
- Brenda Abarca, MDTorrance, CA1407485527
- Pilar Abascal, M.D.Los Angeles, CA1730528191
- Michele Abbasi, M.D.Westlake Village, CA1093940330
- Zohaib AbbasiMartinez, CA1013392224
- Sandy Abdelkedous, MDFresno, CA1306093109
- Nancy Abdelmalak, M.D.Elk Grove, CA1912137498
- Ezzat Abdelmalek, M.DDana Point, CA1992828826
Common questions
What is Jack Yen, MD's NPI number?
Jack Yen, MD's National Provider Identifier (NPI) is 1144428483, issued on Jul 9, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Jack Yen, MD located?
The NPPES record lists a practice address at 512 Hamilton Ave, Palo Alto, CA, 94301. Phone: (650) 250-5615. Providers update this record themselves, so call before visiting.
How can I verify Jack Yen, MD's license?
NPPES lists California license number A118843, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
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.