Hyunju Lee MD a Professional Corporation
NPI 1245103126 · Endocrinology, Diabetes & Metabolism Physician · Garden Grove, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hyunju Lee MD a Professional Corporation is a Endocrinology, Diabetes & Metabolism Physician organization in Garden Grove, CA (NPI 1245103126).
Provider details
- NPI number
- 1245103126
- Entity type
- Organization
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Hyunju Lee, Physician(657) 217-9191
Specialties & taxonomies
Allopathic & Osteopathic Physicians
- Internal Medicine Physician207R00000X
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Additional practice locations (1)
- 7851 Walker St Ste 102La Palma, CA 90623-1734Phone: (714) 422-0440Fax: (714) 494-4210
Registry dates
- Enumerated
- 2025-09-26
- Last updated
- 2026-05-07
- Certified
- 2026-05-07
Frequently asked questions
- What is Hyunju Lee MD a Professional Corporation's NPI number?
- Hyunju Lee MD a Professional Corporation's National Provider Identifier (NPI) is 1245103126, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Hyunju Lee MD a Professional Corporation?
- Hyunju Lee MD a Professional Corporation is classified in the NPPES registry as Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Hyunju Lee MD a Professional Corporation located?
- Hyunju Lee MD a Professional Corporation's practice location on file with NPPES is 12372 Garden Grove Blvd Ste B, Garden Grove, CA 92843-1805.
- What is Hyunju Lee MD a Professional Corporation's phone number?
- The practice phone number listed in the NPPES registry for Hyunju Lee MD a Professional Corporation is (714) 583-8569.
- Does Hyunju Lee MD a Professional Corporation accept Medicare?
- Hyunju Lee MD a Professional Corporation is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Hyunju Lee MD a Professional Corporation?
- The authorized official listed on Hyunju Lee MD a Professional Corporation's NPPES record is Hyunju Lee, Physician. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Hyunju Lee MD a Professional Corporation's NPI active?
- Yes — Hyunju Lee MD a Professional Corporation's NPI (1245103126) is active in the NPPES registry as of the last update on 2026-05-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.