Health Alliance Medical Group

Primary specialty

Primary Care Clinic/CenterTaxonomy code 261QP2300X

Legal business name

HEALTH ALLIANCE MEDICAL GROUP

Practice address

17170 Colima Rd Ste G
Hacienda Heights, CA 91745-6771

Phone

(626) 965-8202

Fax

(626) 964-9893

NPI assigned

Apr 26, 2007

Organization subpart

No

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

Authorized official

Name

William Shun Tzeng, MDNPI 1649809385

Title

Ceo

Phone

(626) 965-8202

Specialties & licenses 1

Addresses

Other identifiers 2

Medicare fee-for-service enrollment

Enrolled in CA

Enrollment records 1

These CMS records do not include an NPI. They are shown because their name and street address match this provider’s.

CLIA laboratory certificates

Locations

Practitioners 2

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

• William Shun Tzeng, MD

  • Internal Medicine Physician
  • Hacienda Heights, CA
  • NPI 1649809385
  Medicare reassignment Care Compare group NPD Authorized official
• Robert Fan Yang Tzeng, MD

  • Internal Medicine Physician
  • Monterey Park, CA
  • NPI 1578665014
  Medicare reassignment Care Compare group NPD

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

{
    "created_epoch": "1177545600000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1788307200000",
    "number": "1124248570",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "17170 COLIMA RD STE G",
            "city": "HACIENDA HEIGHTS",
            "state": "CA",
            "postal_code": "917456771",
            "telephone_number": "626-965-8202",
            "fax_number": "626-964-9893"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "17170 COLIMA RD STE G",
            "city": "HACIENDA HEIGHTS",
            "state": "CA",
            "postal_code": "917456771",
            "telephone_number": "626-965-8202",
            "fax_number": "626-964-9893"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "420 N Garfield Ave Ste 205",
            "address_purpose": "LOCATION",
            "city": "Monterey Park",
            "state": "CA",
            "postal_code": "917541206",
            "country_code": "US",
            "telephone_number": "626-965-8202",
            "fax_number": "626-964-9893",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "organization_name": "HEALTH ALLIANCE MEDICAL GROUP",
        "organizational_subpart": "NO",
        "enumeration_date": "2007-04-26",
        "last_updated": "2026-09-02",
        "certification_date": "2026-09-02",
        "status": "A",
        "authorized_official_last_name": "TZENG",
        "authorized_official_first_name": "WILLIAM",
        "authorized_official_middle_name": "SHUN",
        "authorized_official_title_or_position": "CEO",
        "authorized_official_telephone_number": "626-965-8202",
        "authorized_official_credential": "MD"
    },
    "taxonomies": [
        {
            "code": "261QP2300X",
            "taxonomy_group": "",
            "desc": "Clinic/Center, Primary Care",
            "state": "CA",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "GROUP",
            "identifier": "W11601",
            "state": "CA"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "GR0050620",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Sarah Hand
• Swati Hans, DC
• Quan Hao, BCBA
• Hassan a Kobaissi DPM
• Ridha Amir Hassoun, PHARMD
• Helen Evans Healthcare Center LLC
• Lily Henry
• Evelyn Heredia
• Miranda Heredia
• Carmen Enriqueta Hernandez

• Primary Care Clinic/Center in Hacienda Heights, CA
• Providers in Hacienda Heights, CA by specialty
• Primary Care Clinic/Center in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 2, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.