IndividualActive
James Castellon
NPI 1811880610 · Behavior Technician · Monrovia, CA
James Castellon is a Behavior Technician provider in Monrovia, CA (NPI 1811880610).
Provider details
- NPI number
- 1811880610
- Entity type
- Individual
- Primary specialty
- Behavior TechnicianBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Basic profile(48/100 index)
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
126 W Olive Ave
Monrovia, CA 91016-3410
Phone: (626) 239-3060
Fax: (855) 568-2494
Street-level locationGet directions
Mailing address
100 N Pacific Coast Hwy
El Segundo, CA 90245-4359
Registry dates
- Enumerated
- 2025-05-30
- Last updated
- 2025-05-30
- Certified
- 2025-05-30
Frequently asked questions
- What is James Castellon's NPI number?
- James Castellon's National Provider Identifier (NPI) is 1811880610, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Castellon's specialty?
- James Castellon is listed in the NPPES registry with a primary specialty of Behavior Technician (Behavioral Health & Social Service Providers).
- Where is James Castellon located?
- James Castellon's practice location on file with NPPES is 126 W Olive Ave, Monrovia, CA 91016-3410.
- What is James Castellon's phone number?
- The practice phone number listed in the NPPES registry for James Castellon is (626) 239-3060.
- Is James Castellon's NPI active?
- Yes — James Castellon's NPI (1811880610) is active in the NPPES registry as of the last update on 2025-05-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.