Occupational Therapists in Diamond Bar, CA
Browse 19 Occupational Therapist providers listed in NPPES with a practice address in Diamond Bar, California.
How Diamond Bar compares with the U.S.
Diamond Bar has 36 Occupational Therapists per 100,000 residents, 11% lower than the U.S. rate of 40.
That is 19 active Occupational Therapists with a practice address in Diamond Bar, for a population of 53,355.
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 Diamond Bar 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 Registry addresses can be out of date.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).
Chao Rong Lee
Occupational Therapist
Randy Balbuena
Occupational Therapist
Charlene Lopez Celestino
Occupational Therapist
Lina Chen , OT
Occupational Therapist
Nancy Cho , OT
Occupational Therapist
Erin Hannah Chung
Occupational Therapist
Nirali Darji , OCCUPATIONAL THERAPI
Occupational Therapist
Arnavaz Dubash
Occupational Therapist
Che-Wei Hsiao
Occupational Therapist
Dr. Joyce Khowdee , OTD, OTR, L
Occupational Therapist
Joseph Lee
Occupational Therapist
Megan Nicole Lee , OTR, L
Occupational Therapist
Christa Le Fevre , OTR, L
Occupational Therapist
Ming Wei Lo
Occupational Therapist
Cassidy Morton
Occupational Therapist
Dhanashree M Potdar
Occupational Therapist
Coleen Songcuya , OTR
Occupational Therapist
Eliza Hisako Yamamoto , OTR, L
Occupational Therapist
Jessica Zhu
Occupational Therapist
Frequently Asked Questions about Occupational Therapist in Diamond Bar
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 Diamond Bar
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