Individual provider Active NPI

Chien Shien Yang, MD

  • Psychiatry Physician
  • San Jose, CA
National Provider Identifier
1780025692
Registry record updated Dec 19, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Psychiatry PhysicianTaxonomy code 2084P0800X
License
A146578 Issued in CA
Practice address
1190 Park Ave
San Jose, CA 95126-2913
Phone
(415) 655-0952
NPI assigned
Jul 9, 2013
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Dec 19, 2025

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Psychiatry Physician 2084P0800X A146578 CA Primary

Addresses

Primary practice location

1190 Park Ave
San Jose, CA 95126-2913

Mailing address

1190 Park Ave
San Jose, CA 95126-2913
Phone (415) 655-0952

Other practice location 1

3880 S Bascom Ave Ste 216
San Jose, CA 95124-2675
Phone (415) 655-0952

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20170928001907 CA Practitioner - Psychiatry 3375774995 Reassigns benefits to 2 organizations
Practice locations: Fremont, CA

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
A146578CAMDPsychiatry Physician

Practice roles

OrganizationSpecialtyStatusNew patients
County of Santa Clara Current Accepting new patients
County of Santa Clara CurrentSince Oct 1, 2025 Accepting new patients
County of Santa Clara CurrentSince Oct 1, 2025 Accepting new patients
Alameda County CurrentSince Aug 26, 2021 Accepting new patients
Innergrove Psychiatry PC Psychiatry CurrentSince Dec 21, 2025 Accepting new patients
Alameda County Current Accepting new patients
County of Alameda Past Accepting new patients
Chien Shien Yang MD Inc Psychiatry PastSince May 1, 2020 Accepting new patients

Locations

7475 Camino Arroyo
Gilroy, CA 95020
Phone (408) 852-2400

409 Jackson St
Ste 100
Hayward, CA 94544
Phone (510) 383-5103

7200 Bancroft Ave
Ste 125A
Oakland, CA 94605
Phone (510) 777-3800

751 S Bascom Ave
San Jose, CA 95128
Phone (408) 885-5110

1993 McKee Rd
San Jose, CA 95116
Phone (408) 254-6320

500 Tully Rd
San Jose, CA 95111
Phone (408) 817-1433

750 S Bascom Ave
San Jose, CA 95128
Phone (408) 885-2320

1190 Park Ave
San Jose, CA 95126
Phone (415) 655-0952

660 S Fair Oaks Ave
Sunnyvale, CA 94086
Phone (408) 885-7366

Interoperability endpoints

  • Direct secure messaging: cyang190337@santaclaravalley.direct-ci.net

Organizations & group practices 8

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1373328000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1766102400000",
    "number": "1780025692",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1190 PARK AVE",
            "city": "SAN JOSE",
            "state": "CA",
            "postal_code": "951262913",
            "telephone_number": "415-655-0952"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1190 PARK AVE",
            "city": "SAN JOSE",
            "state": "CA",
            "postal_code": "951262913",
            "telephone_number": "415-655-0952"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "3880 S Bascom Ave Ste 216",
            "address_purpose": "LOCATION",
            "city": "San Jose",
            "state": "CA",
            "postal_code": "951242675",
            "country_code": "US",
            "telephone_number": "415-655-0952",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "YANG",
        "first_name": "CHIEN SHIEN",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2013-07-09",
        "last_updated": "2025-12-19",
        "certification_date": "2025-12-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "CA",
            "license": "A146578",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in San Jose, CA

Sources for this page

Verify at the official NPI Registry.