Organization Active NPI

Hyunju Lee MD a Professional Corporation

  • Endocrinology, Diabetes & Metabolism Physician
  • La Palma, CA
National Provider Identifier
1245103126
Registry record updated Aug 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Endocrinology, Diabetes & Metabolism PhysicianTaxonomy code 207RE0101X
Legal business name
HYUNJU LEE MD A PROFESSIONAL CORPORATION
Practice address
7851 Walker St Ste 103
La Palma, CA 90623-1734
Phone
(714) 422-0440
Fax
(714) 494-4210
NPI assigned
Sep 26, 2025
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Aug 13, 2026

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

Authorized official

Name
Hyunju Lee, MDNPI 1629483102
Title
Physician
Phone
(714) 583-8569

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 2

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 207R00000X
Endocrinology, Diabetes & Metabolism PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 207RE0101X Primary

Addresses

Primary practice location

7851 Walker St Ste 103
La Palma, CA 90623-1734

Mailing address

12372 Garden Grove Blvd Ste B
Garden Grove, CA 92843-1805
Phone (714) 583-8569

Other practice location 1

12372 Garden Grove Blvd Ste B
Garden Grove, CA 92843-1805
Phone (714) 583-8569

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20251209001024 CA Part B Supplier - Clinic/Group Practice 9234623117 Receives reassigned benefits from 1 practitioner
Practice locations: Garden Grove, CA

National Provider Directory

National Provider Directory

Locations

7851 Walker St
Ste 103
La Palma, CA 90623
Phone (714) 345-3023

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": "1758844800000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1786579200000",
    "number": "1245103126",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "12372 GARDEN GROVE BLVD STE B",
            "city": "GARDEN GROVE",
            "state": "CA",
            "postal_code": "928431805",
            "telephone_number": "714-583-8569",
            "fax_number": "714-661-5371"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "7851 WALKER ST STE 103",
            "city": "LA PALMA",
            "state": "CA",
            "postal_code": "906231734",
            "telephone_number": "714-422-0440",
            "fax_number": "714-494-4210"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "12372 Garden Grove Blvd Ste B",
            "address_purpose": "LOCATION",
            "city": "Garden Grove",
            "state": "CA",
            "postal_code": "928431805",
            "country_code": "US",
            "telephone_number": "714-583-8569",
            "fax_number": "714-661-5371",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "organization_name": "HYUNJU LEE MD A PROFESSIONAL CORPORATION",
        "organizational_subpart": "NO",
        "enumeration_date": "2025-09-26",
        "last_updated": "2026-08-13",
        "certification_date": "2026-08-13",
        "status": "A",
        "authorized_official_last_name": "LEE",
        "authorized_official_first_name": "HYUNJU",
        "authorized_official_title_or_position": "PHYSICIAN",
        "authorized_official_telephone_number": "714-583-8569",
        "authorized_official_credential": "MD"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Internal Medicine",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "207RE0101X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in La Palma, CA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 13, 2026; 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.