Occupational Therapists in Ontario, CA
Browse 27 Occupational Therapist providers listed in NPPES with a practice address in Ontario, California.
How Ontario compares with the U.S.
Ontario has 15 Occupational Therapists per 100,000 residents, about 37% of the U.S. rate of 40.
That is 27 active Occupational Therapists with a practice address in Ontario, for a population of 180,547.
The California rate is 24 per 100,000 residents.
What these numbers mean
Clinicians per 100,000 residents compares places of different sizes. We count active clinicians who list a practice address in the area in the federal NPI registry (NPPES) and divide by the number of people who live there, according to the U.S. Census Bureau. The U.S. rate is the same calculation for the whole country.
A higher number does not mean it is easier to get an appointment, that wait times are shorter, or that care is better. It also does not show how many clinicians are accepting new patients or which insurance plans they take. A lower number does not by itself mean there is a shortage.
City counts use the city name in each clinician's practice address. That postal city can cover a larger or smaller area than the city limits the Census Bureau uses for population, and many clinicians list only one address even if they work in several places.
Too few Occupational Therapists in Ontario are listed in the CMS Medicare file to report Medicare assignment or telehealth shares.
These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.
Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com · Methodology
Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).
Charmaine Lim , OT
Occupational Therapist
Eunice Yoonhee Rhee , OTR, L
Occupational Therapist
Mari Hazel Aguila , OTR, L
Occupational Therapist
Roberto Eli Ayala
Occupational Therapist
Jaclyn Danielle Buckingham , MOT, OTR, L
Occupational Therapist
Brittney Chi
Occupational Therapist
Alyzah Jewels Dalnay , OTR, L
Occupational Therapist
Daniel Jinkane Dang , OTR, L
Occupational Therapist
Andrea Diaz , OTR, L
Occupational Therapist
John Dietel
Occupational Therapist
Breanna Gonzalez
Occupational Therapist
Monica Sarah Jackson , SLPA
Occupational Therapist
Marleen Juarez
Occupational Therapist
Hannah Klein , OTR, L
Occupational Therapist
Amy Kathleen Lee , OTR, L
Occupational Therapist
Dr. Jerelle Ysobel Tobias Medina , OTD, OTR, L
Occupational Therapist
Cynthia Nogoy , MSOT
Occupational Therapist
Kyanguu Nzuve
Occupational Therapist
Buenaventura Peralta , OTR, L
Occupational Therapist
Nimisha Rajesh Pradhan , BSC OT, BSC PSYCH
Occupational Therapist
Frequently Asked Questions about Occupational Therapist in Ontario
Each practitioner profile shows the NUCC taxonomy code and any state license number the practitioner reported to NPPES, plus a link to the California licensing board lookup. NPPES entries are self-reported; current license status is published only by the state board.
This list shows NPI records that are active in NPPES. A deactivated NPI keeps its profile with the deactivation date and practice history; find it with the site search by name or NPI number.
Other Specialties in Ontario
Occupational Therapists in Other California Cities
Cities with the most listed practitioners first.