William Shun Tzeng, MD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

A187692 Issued in CA

Practice address

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

Phone

(626) 965-8202

Fax

(626) 964-9893

NPI assigned

Apr 4, 2020

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

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

Specialty

Internal Medicine

Education

Washington University School of Medicine, 2020

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Health Alliance Medical GroupGroup PAC ID 5991747883, 2 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Lakeside Home Health, Inc. Home health agency, West Covina, CA, CCN 757117

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Networks

• BSC 65 PLUS INDIVIDUAL MAPD

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.

• Health Alliance Medical Group

  • Primary Care Clinic/Center
  • Hacienda Heights, CA
  • NPI 1124248570
  Medicare reassignment Care Compare group NPD Authorized official
• Ahmc Garfield Medical Center LP

  • General Acute Care Hospital
  • Monterey Park, CA
  • NPI 1730171265
  NPD (past)
• Grace Ting, DPM, Inc.

  • Foot & Ankle Surgery Podiatrist
  • Alhambra, CA
  • NPI 1245266576
  NPD (past)

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Lakeside Home Health, Inc.

  • Home Health Agency
  • Burbank, CA
  • NPI 1407458995
  Care Compare affiliation

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

{
    "created_epoch": "1585958400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788307200000",
    "number": "1649809385",
    "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": {
        "last_name": "TZENG",
        "first_name": "WILLIAM",
        "middle_name": "SHUN",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2020-04-04",
        "last_updated": "2026-09-02",
        "certification_date": "2026-09-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A187692",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Howard Tseng
• Connie Tsui, RDN
• Freco Tsun, DNAP
• Wen Jung Tu, PHARMD
• Catherine Tung
• U Clinic Corp.
• Lindsey Ueda
• Jaimis Rebecca Ulrich, ED.D., CHT
• Ulterior Dental Hygiene Practice of Benjamin Corey
• United Care Homes, Inc. - Kinbrae

• Internal Medicine Physician in Hacienda Heights, CA
• Providers in Hacienda Heights, CA by specialty
• Internal Medicine Physician 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; Order and Referring.
• 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.