NATALIE NICHOLE TOMSIO
NPI 1790200889
Occupational Therapist in Ontario, CA

Active since August 09, 2017
4688 ONTARIO MILLS PKWY, ONTARIO, CA 91764(657) 242-2079 Get Directions Write a Review

NPPES record last updated: December 11, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Dec 11, 2025, Jul 1, 2024, Jul 21, 2022 and 2 more (5 updates tracked since 2017).

About Natalie Nichole Tomsio NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

NATALIE NICHOLE TOMSIO (NPI 1790200889) is an individual occupational therapist in Ontario, California, licensed in California (22289) and active in the NPI registry since August 2017.

NPPES Registry Identity

NPI1790200889
Entity TypeIndividualFemale
Primary Taxonomy225X00000X
Provider Legal NameNATALIE NICHOLE TOMSIO
Location Address4688 ONTARIO MILLS PKWYOntario, CA 91764-5104
Mailing Address6154 Goldenrod LnRiverside, CA 92504-1290 · (909) 451-3607
Sole ProprietorYes
Enumeration DateAugust 9, 2017
Last NPPES UpdateDecember 11, 20255 updates tracked since enumeration
NPPES CertifiedDecember 11, 2025
NPI 1790200889 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyOccupational TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
Taxonomy Code225X00000X
License Licensed in CA · 22289
Definition

An occupational therapist is a person who has graduated from an entry-level occupational therapy program accredited by the Accreditation Council for Occupational Therapy Education (ACOTE) or predecessor organizations, or approved by the World Federation of Occupational Therapists (WFOT), or an equivalent international occupational therapy education program; has successfully completed a period of supervised fieldwork experience required by the occupational therapy program; has passed a nationally recognized entry-level examination for occupational therapists, and fulfills state requirements for licensure, certification, or registration. An occupational therapist provides interventions based on evaluation and which emphasize the therapeutic use of everyday life activities (i.e., occupations) with individuals or groups for the purpose of facilitating participation in roles and situations and in home, school, workplace, community and other settings. Occupational therapy services are provided for the purpose of promoting health and wellness and are provided to those who have or are at risk for developing an illness, injury, disease, disorder, condition, impairment, disability, activity limitation, or participation restriction. Occupational therapists address the physical, cognitive, psychosocial, sensory, and other aspects of occupational performance in a variety of contexts to support engagement in everyday life activities that affect health, well-being, and quality of life.

4688 ONTARIO MILLS PKWY, Ontario, CA 91764

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Behavior Technician
4688 ONTARIO MILLS PKWY
ONTARIO, CA 91764
Behavior Technician
4688 ONTARIO MILLS PKWY
ONTARIO, CA 91764
Speech-Language Pathologist
4688 ONTARIO MILLS PKWY
ONTARIO, CA 91764
Assistant Behavior Analyst
4688 ONTARIO MILLS PKWY
ONTARIO, CA 91764
Behavior Analyst
4688 ONTARIO MILLS PKWY
ONTARIO, CA 91764
Assistant Behavior Analyst
4688 ONTARIO MILLS PKWY
ONTARIO, CA 91764
Assistant Behavior Analyst
4688 ONTARIO MILLS PKWY
ONTARIO, CA 91764
Behavior Technician
4688 ONTARIO MILLS PKWY
ONTARIO, CA 91764

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Natalie Tomsio's NPI number?

The NPI number for Natalie Tomsio is 1790200889. It was assigned to this individual provider in the NPPES registry on August 9, 2017.

Where is Natalie Tomsio located?

Natalie Tomsio practices at 4688 Ontario Mills Pkwy, Ontario, CA 91764. The listed phone number is (657) 242-2079.

What is Natalie Tomsio's specialty?

The primary specialty registered for this NPI is Occupational Therapist with taxonomy code 225X00000X.

When was this NPI record last updated?

The NPPES record for Natalie Tomsio was last updated on December 11, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.