Lucille Leong, MD
NPI 1104936459 · Medical Oncology Physician · Duarte, CA
Lucille Leong, MD is a Medical Oncology Physician provider in Duarte, CA (NPI 1104936459).
Provider details
- NPI number
- 1104936459
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- G43999 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
- 2006-08-30
- Last updated
- 2015-08-26
Frequently asked questions
- What is Lucille Leong's NPI number?
- Lucille Leong's National Provider Identifier (NPI) is 1104936459, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lucille Leong's specialty?
- Lucille Leong is listed in the NPPES registry with a primary specialty of Medical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Lucille Leong located?
- Lucille Leong's practice location on file with NPPES is 1500 E Duarte Rd, Duarte, CA 91010.
- What is Lucille Leong's phone number?
- The practice phone number listed in the NPPES registry for Lucille Leong is (626) 359-8111.
- Is Lucille Leong's NPI active?
- Yes — Lucille Leong's NPI (1104936459) is active in the NPPES registry as of the last update on 2015-08-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.