Organization Active NPI

Chun Yen Hsu, M.D., Professional Corporation

  • Gastroenterology Physician
  • Monterey Park, CA
National Provider Identifier
1013943554
Registry record updated Nov 6, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Gastroenterology PhysicianTaxonomy code 207RG0100X
License
A37929 Issued in CA
Legal business name
CHUN YEN HSU, M.D., PROFESSIONAL CORPORATION
Practice address
600 N Garfield Ave, Ste 310
Monterey Park, CA 91754-1172
Phone
(626) 573-9979
Fax
(626) 573-1822
NPI assigned
Jun 25, 2006
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Nov 6, 2025

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

Authorized official

Name
Chun Yen Hsu, M.D.NPI 1902831894
Title
President
Phone
(626) 573-9979

Authorized official NPPES reports the official by name only. The link goes to the one practitioner connected to this organization with that name.

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Gastroenterology PhysicianGroup: 193400000X SINGLE SPECIALTY GROUP 207RG0100X A37929 CA Primary

Addresses

Primary practice location

600 N Garfield Ave, Ste 310
Monterey Park, CA 91754-1172

Mailing address

600 N Garfield Ave, Ste 310
Monterey Park, CA 91754-1172
Phone (626) 573-9979

Other identifiers 1

IdentifierTypeStateIssuer
A379290MedicaidCA

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20100818001063 CA Part B Supplier - Clinic/Group Practice 4082748504 Receives reassigned benefits from 1 practitioner
Practice locations: Monterey Park, CA

National Provider Directory

National Provider Directory

Locations

600 N Garfield Ave
Ste 310
Monterey Park, CA 91754
Phone (626) 573-9979

Practitioners & affiliated clinicians

Practitioners 1

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

NPI Registry JSON

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

{
    "created_epoch": "1151193600000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1762387200000",
    "number": "1013943554",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "600 N GARFIELD AVE, STE 310",
            "city": "MONTEREY PARK",
            "state": "CA",
            "postal_code": "917541172",
            "telephone_number": "626-573-9979",
            "fax_number": "626-573-1822"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "600 N GARFIELD AVE, STE 310",
            "city": "MONTEREY PARK",
            "state": "CA",
            "postal_code": "917541172",
            "telephone_number": "626-573-9979",
            "fax_number": "626-573-1822"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "CHUN YEN HSU, M.D., PROFESSIONAL CORPORATION",
        "organizational_subpart": "NO",
        "enumeration_date": "2006-06-25",
        "last_updated": "2025-11-06",
        "certification_date": "2025-11-06",
        "status": "A",
        "authorized_official_last_name": "HSU",
        "authorized_official_first_name": "CHUN",
        "authorized_official_middle_name": "YEN",
        "authorized_official_title_or_position": "PRESIDENT",
        "authorized_official_telephone_number": "626-573-9979",
        "authorized_official_credential": "M.D."
    },
    "taxonomies": [
        {
            "code": "207RG0100X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "CA",
            "license": "A37929",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "A379290",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Monterey Park, CA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 6, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.