IndividualActive
Jack Yen, MD
NPI 1144428483 · Psychiatry Physician · Palo Alto, CA
Jack Yen, MD is a Psychiatry Physician provider in Palo Alto, CA (NPI 1144428483).
Provider details
- NPI number
- 1144428483
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A118843 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(93/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
512 Hamilton Ave
Palo Alto, CA 94301-2011
Phone: (650) 250-5615
Street-level locationGet directions
Mailing address
2310 Homestead Rd Ste C1-543
Los Altos, CA 94024-7339
Additional practice locations (1)
- 2310 Homestead Rd Ste C1-543Los Altos, CA 94024-7339Phone: (614) 304-1816
Registry dates
- Enumerated
- 2007-07-09
- Last updated
- 2018-03-17
Frequently asked questions
- What is Jack Yen's NPI number?
- Jack Yen's National Provider Identifier (NPI) is 1144428483, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jack Yen's specialty?
- Jack Yen is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Jack Yen located?
- Jack Yen's practice location on file with NPPES is 512 Hamilton Ave, Palo Alto, CA 94301-2011.
- What is Jack Yen's phone number?
- The practice phone number listed in the NPPES registry for Jack Yen is (650) 250-5615.
- Is Jack Yen's NPI active?
- Yes — Jack Yen's NPI (1144428483) is active in the NPPES registry as of the last update on 2018-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.