Ken D. Nguyen, M.D., Inc.

Primary specialty

Gastroenterology PhysicianTaxonomy code 207RG0100X

Legal business name

KEN D. NGUYEN, M.D., INC.

Practice address

6271 Rosemead Blvd
Temple City, CA 91780-1562

Phone

(626) 898-4560

Fax

(844) 407-0584

NPI assigned

Mar 20, 2020

Organization subpart

No

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

Authorized official

Name

Dr. Ken Nguyen, MDNPI 1205193828

Title

President

Phone

(626) 898-4560

Specialties & licenses 2

Addresses

Interoperability endpoints

• Direct secure messaging: insite-sangabriel@directaddress.net

Subparts reporting this organization as parent 1

Organizations that report themselves as subparts in NPPES and name this organization, in the same state, as their parent.

• Ken D. Nguyen, M.D., Inc.

  • Internal Medicine Physician
  • Los Angeles, CA
  • NPI 1649189622
  NPPES parent name

Practitioners 2

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

• Ken Duong Nguyen, M.D.

  • Gastroenterology Physician
  • Temple City, CA
  • NPI 1205193828
  NPD Authorized official
• Tien-Chun Chen, MD

  • Gastroenterology Physician
  • Temple City, CA
  • NPI 1396005450
  NPD

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

{
    "created_epoch": "1584662400000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1788825600000",
    "number": "1043846108",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 597",
            "city": "TEMPLE CITY",
            "state": "CA",
            "postal_code": "917800597",
            "telephone_number": "626-898-4560",
            "fax_number": "626-898-4561"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "6271 ROSEMEAD BLVD",
            "city": "TEMPLE CITY",
            "state": "CA",
            "postal_code": "917801562",
            "telephone_number": "626-898-4560",
            "fax_number": "844-407-0584"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "KEN D. NGUYEN, M.D., INC.",
        "organizational_subpart": "NO",
        "enumeration_date": "2020-03-20",
        "last_updated": "2026-09-08",
        "certification_date": "2026-09-08",
        "status": "A",
        "authorized_official_last_name": "NGUYEN",
        "authorized_official_first_name": "KEN",
        "authorized_official_title_or_position": "PRESIDENT",
        "authorized_official_telephone_number": "626-898-4560",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "MD"
    },
    "taxonomies": [
        {
            "code": "207RG0100X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Internal Medicine, Gastroenterology",
            "state": null,
            "license": null,
            "primary": true
        },
        {
            "code": "207RI0008X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Internal Medicine, Hepatology",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Juste Medical a Professional Corporation (San Gabriel Primary Care)
• Franck Juste, M.D.
• Terry Ann Kappe
• Jessica Diana Karaguezian, FNP-BC
• Sarah E Kelly
• Joanne Kim, M.S. CCC-SLP
• Colleen Ting-Ting Kwan, MS
• Lynn May Kwok, PHARM D
• Tiffany Christine Kwong, OD
• Chiman Lad, DDS

• Gastroenterology Physician in Temple City, CA
• Providers in Temple City, CA by specialty
• Gastroenterology Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 8, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.