Active NPI
Hyunju Lee MD a Professional Corporation
- Endocrinology, Diabetes & Metabolism Physician
- La Palma, CA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Endocrinology, Diabetes & Metabolism Physician
- 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
Registry information is reported by the provider to CMS and is not verified. About this source
Authorized official
- Name
- Hyunju Lee, MD
- 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) | Code | License | State | Primary |
|---|---|---|---|---|
| Internal Medicine Physician | 207R00000X | |||
| Endocrinology, Diabetes & Metabolism Physician | 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
National Provider Directory
National Provider DirectoryLocations
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.
-
- Endocrinology, Diabetes & Metabolism Physician
- La Palma, CA
- NPI 1629483102
Internal Medicine
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.