Ying-Yan Leung M D a Professional Corporation
NPI 1013261254 · Family Medicine Physician · Hacienda Hts, CA
Ying-Yan Leung M D a Professional Corporation is a Family Medicine Physician organization in Hacienda Hts, CA (NPI 1013261254).
Provider details
- NPI number
- 1013261254
- Entity type
- Organization
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Ying Yan Leung, MD(626) 961-5479
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
13 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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
Registry dates
- Enumerated
- 2012-11-08
- Last updated
- 2023-10-30
- Certified
- 2023-10-30
Frequently asked questions
- What is Ying-Yan Leung M D a Professional Corporation's NPI number?
- Ying-Yan Leung M D a Professional Corporation's National Provider Identifier (NPI) is 1013261254, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Ying-Yan Leung M D a Professional Corporation?
- Ying-Yan Leung M D a Professional Corporation is classified in the NPPES registry as Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ying-Yan Leung M D a Professional Corporation located?
- Ying-Yan Leung M D a Professional Corporation's practice location on file with NPPES is 3038 S Hacienda Blvd, Hacienda Hts, CA 91745-5313.
- What is Ying-Yan Leung M D a Professional Corporation's phone number?
- The practice phone number listed in the NPPES registry for Ying-Yan Leung M D a Professional Corporation is (626) 961-5479.
- Who is the authorized official for Ying-Yan Leung M D a Professional Corporation?
- The authorized official listed on Ying-Yan Leung M D a Professional Corporation's NPPES record is Ying Yan Leung, MD. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Ying-Yan Leung M D a Professional Corporation's NPI active?
- Yes — Ying-Yan Leung M D a Professional Corporation's NPI (1013261254) is active in the NPPES registry as of the last update on 2023-10-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.