Leonard W Liang MD a Medical Corporation
NPI 1033323290 · Specialist · Los Angeles, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Leonard W Liang MD a Medical Corporation is a Specialist organization in Los Angeles, CA (NPI 1033323290).
Provider details
- NPI number
- 1033323290
- Entity type
- Organization
- Primary specialty
- SpecialistOther Service Providers
- Organization subpart
- No
- Authorized official
- Leonard Liang, Ceo(213) 749-0662
- License
- A66024 (CA)
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
- 2007-05-09
- Last updated
- 2025-08-12
- Certified
- 2025-08-12
Frequently asked questions
- What is Leonard W Liang MD a Medical Corporation's NPI number?
- Leonard W Liang MD a Medical Corporation's National Provider Identifier (NPI) is 1033323290, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Leonard W Liang MD a Medical Corporation?
- Leonard W Liang MD a Medical Corporation is classified in the NPPES registry as Specialist (Other Service Providers).
- Where is Leonard W Liang MD a Medical Corporation located?
- Leonard W Liang MD a Medical Corporation's practice location on file with NPPES is 1513 S Grand Ave, Los Angeles, CA 90015-3070.
- What is Leonard W Liang MD a Medical Corporation's phone number?
- The practice phone number listed in the NPPES registry for Leonard W Liang MD a Medical Corporation is (213) 749-0662.
- Does Leonard W Liang MD a Medical Corporation accept Medicare?
- Leonard W Liang MD a Medical 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 Leonard W Liang MD a Medical Corporation?
- The authorized official listed on Leonard W Liang MD a Medical Corporation's NPPES record is Leonard Liang, Ceo. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Leonard W Liang MD a Medical Corporation's NPI active?
- Yes — Leonard W Liang MD a Medical Corporation's NPI (1033323290) is active in the NPPES registry as of the last update on 2025-08-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.