Jun Hyeok Choi

Primary specialty

Physician AssistantTaxonomy code 363A00000X

Practice address

3550 E Philadelphia St Ste 150
Ontario, CA 91761-2963

Phone

(909) 773-0022

Fax

(909) 781-6015

NPI assigned

Jul 6, 2026

Last updated

Aug 7, 2026By the provider in NPPES

Sex

Male

Sole proprietor

Yes

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

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

Practice roles

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

• Wu & Diaz Professional Corp

  dba Care First Medical Group Inc

  • Family Medicine Physician
  • Ontario, CA
  • NPI 1548356884
  NPD (past)

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

{
    "created_epoch": "1783296000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1786060800000",
    "number": "1801713326",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1265 HARBOR LAKE AVE",
            "city": "BREA",
            "state": "CA",
            "postal_code": "928212860",
            "telephone_number": "562-965-9070"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3550 E PHILADELPHIA ST STE 150",
            "city": "ONTARIO",
            "state": "CA",
            "postal_code": "917612963",
            "telephone_number": "909-773-0022",
            "fax_number": "909-781-6015"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CHOI",
        "first_name": "JUN HYEOK",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2026-07-06",
        "last_updated": "2026-08-07",
        "certification_date": "2026-08-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Physician Assistant",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Derek Chiu, PT
• Samantha Marie Chiuppi, LMFT
• Elizabeth H Choi, RPH
• Eunice Choi
• Hanna Choi, PHYSICIAN ASSISTANT
• Matthew Choi
• Serena Choi
• Solomia Choi
• Chong Il Lee D.D.S a Professional Corporation
• Cany Tan Chong

• Physician Assistant in Ontario, CA
• Providers in Ontario, CA by specialty
• Physician Assistant in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 7, 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.