What is Natalie Alonzo's NPI number?

Natalie Alonzo's National Provider Identifier (NPI) is 1396682043, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Natalie Alonzo's specialty?

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

Where is Natalie Alonzo located?

Natalie Alonzo's practice location on file with NPPES is 2930 Inland Empire Blvd Ste 101, Ontario, CA 91764-4802.

What is Natalie Alonzo's phone number?

The practice phone number listed in the NPPES registry for Natalie Alonzo is (909) 483-5000.

Is Natalie Alonzo's NPI active?

Yes — Natalie Alonzo's NPI (1396682043) is active in the NPPES registry as of the last update on 2026-04-30.

IndividualActive

Natalie Alonzo, M.S

NPI 1396682043 · Behavior Technician · Ontario, CA

Natalie Alonzo, M.S is a Behavior Technician provider in Ontario, CA (NPI 1396682043).

Provider details

NPI number: 1396682043
Entity type: Individual
Primary specialty: Behavior TechnicianBehavioral Health & Social Service Providers
Credential: M.S
Sex: Female
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

2930 Inland Empire Blvd Ste 101

Ontario, CA 91764-4802

Phone: (909) 483-5000

Street-level locationGet directions

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Mailing address