What is Isaac Fonseca's NPI number?

Isaac Fonseca's National Provider Identifier (NPI) is 1427905512, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Isaac Fonseca's specialty?

Isaac Fonseca is listed in the NPPES registry with a primary specialty of Behavior Technician (Behavioral Health & Social Service Providers).

Where is Isaac Fonseca located?

Isaac Fonseca's practice location on file with NPPES is 5488 S Monrovia Ave, Tucson, AZ 85706-2120.

What is Isaac Fonseca's phone number?

The practice phone number listed in the NPPES registry for Isaac Fonseca is (805) 889-9838.

Is Isaac Fonseca's NPI active?

Yes — Isaac Fonseca's NPI (1427905512) is active in the NPPES registry as of the last update on 2026-04-02.

IndividualActive

Isaac Fonseca

NPI 1427905512 · Behavior Technician · Tucson, AZ

Isaac Fonseca is a Behavior Technician provider in Tucson, AZ (NPI 1427905512).

Provider details

NPI number: 1427905512
Entity type: Individual
Primary specialty: Behavior TechnicianBehavioral Health & Social Service Providers
Sex: Male
Sole proprietor: No

Specialties & taxonomies

Behavior TechnicianPrimary106S00000X
Behavioral Health & Social Service Providers

Profile Score

Basic profile(46/100 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

5488 S Monrovia Ave

Tucson, AZ 85706-2120

Phone: (805) 889-9838

Street-level locationGet directions

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Mailing address