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Tristan Fontanilla
NPI 1801746953 · Behavior Technician · Ontario, CA
Tristan Fontanilla is a Behavior Technician provider in Ontario, CA (NPI 1801746953).
Provider details
- NPI number
- 1801746953
- Entity type
- Individual
- Primary specialty
- Behavior TechnicianBehavioral Health & Social Service Providers
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Basic profile(47/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in 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
3190 Shelby St Ste B
Ontario, CA 91764-6563
Phone: (909) 451-7861
Street-level locationGet directions
Mailing address
100 N Pacific Coast Hwy Ste 1400
El Segundo, CA 90245-5602
Registry dates
- Enumerated
- 2026-01-29
- Last updated
- 2026-01-29
- Certified
- 2026-01-29
Frequently asked questions
- What is Tristan Fontanilla's NPI number?
- Tristan Fontanilla's National Provider Identifier (NPI) is 1801746953, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tristan Fontanilla's specialty?
- Tristan Fontanilla is listed in the NPPES registry with a primary specialty of Behavior Technician (Behavioral Health & Social Service Providers).
- Where is Tristan Fontanilla located?
- Tristan Fontanilla's practice location on file with NPPES is 3190 Shelby St Ste B, Ontario, CA 91764-6563.
- What is Tristan Fontanilla's phone number?
- The practice phone number listed in the NPPES registry for Tristan Fontanilla is (909) 451-7861.
- Is Tristan Fontanilla's NPI active?
- Yes — Tristan Fontanilla's NPI (1801746953) is active in the NPPES registry as of the last update on 2026-01-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.