Leon Chan
NPI 1164245411 · Assistant Behavior Analyst · Rancho Cucamonga, CA
Leon Chan is a Assistant Behavior Analyst provider in Rancho Cucamonga, CA (NPI 1164245411).
Provider details
- NPI number
- 1164245411
- Entity type
- Individual
- Primary specialty
- Assistant Behavior AnalystBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
1 yr in NPPES registry
- Profile completeness38% of score
83% 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
- 2024-11-05
- Last updated
- 2024-11-05
- Certified
- 2024-11-05
Frequently asked questions
- What is Leon Chan's NPI number?
- Leon Chan's National Provider Identifier (NPI) is 1164245411, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leon Chan's specialty?
- Leon Chan is listed in the NPPES registry with a primary specialty of Assistant Behavior Analyst (Behavioral Health & Social Service Providers).
- Where is Leon Chan located?
- Leon Chan's practice location on file with NPPES is 10261 Trademark St Ste C, Rancho Cucamonga, CA 91730-5805.
- What is Leon Chan's phone number?
- The practice phone number listed in the NPPES registry for Leon Chan is (909) 317-8499.
- Is Leon Chan's NPI active?
- Yes — Leon Chan's NPI (1164245411) is active in the NPPES registry as of the last update on 2024-11-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.