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Occupational Therapy Assistants in Placentia, CA

Browse 11 Occupational Therapy Assistant providers listed in NPPES with a practice address in Placentia, California.

11 Healthcare Providers

How Placentia compares with the U.S.

Placentia has 21 Occupational Therapy Assistants per 100,000 residents, about 1.7 times the U.S. rate of 12.

That is 11 active Occupational Therapy Assistants with a practice address in Placentia, for a population of 52,826.

The California rate is 4.8 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. Cities with hospitals or large medical centers often list more specialists than the number of residents alone would suggest, because patients also come from nearby areas.

None of the Occupational Therapy Assistants in Placentia are listed in the CMS Medicare file.

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 Registry addresses can be out of date.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 ยท 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).

Showing 1โ€“11 of 11 providers
With recent CMS data first, then Aโ€“Z

Michelle Alfonso , COTA, L

Occupational Therapy Assistant

Active NPI Status
1180 N Bradford Ave, Placentia, CA 928703301
Phone: 7149969292
NPI Identifier 1013682772
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Raymond Barrow

Occupational Therapy Assistant

Active NPI Status
306 Los Padres Ln, Placentia, CA 928706234
Phone: 7145612968
NPI Identifier 1427751601
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Angela Chan , COTA, L

Occupational Therapy Assistant

Active NPI Status
740 S Placentia Ave Ste 100, Placentia, CA 928706832
Phone: 7146468318
NPI Identifier 1649779117
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Nasym Emami

Occupational Therapy Assistant

Active NPI Status
740 S Placentia Ave, Placentia, CA 928706832
Phone: 7146468318
NPI Identifier 1801152475
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Daniel Guerrero

Occupational Therapy Assistant

Active NPI Status
774 S Placentia Ave, Placentia, CA 928706826
Phone: 8008707989
NPI Identifier 1518689777
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Marsha Martinez

Occupational Therapy Assistant

Active NPI Status
740 S Placentia Ave Ste 100, Placentia, CA 92870
Phone: 7146468318
NPI Identifier 1457520637
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Debra Sue Mcmillen , COTA

Occupational Therapy Assistant

Active NPI Status
740 S Placentia Ave, Ste 100, Placentia, CA 928706832
Phone: 7146468318
NPI Identifier 1114460383
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Angelita Guadalupe Ramirez

Occupational Therapy Assistant

Active NPI Status
740 Placentia Ave Ste 100, Placentia, CA 928706832
Phone: 7146468318
NPI Identifier 1700388386
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Emily Rodriguez

Occupational Therapy Assistant

Active NPI Status
740 S Placentia Ave Ste 100, Placentia, CA 928706832
Phone: 7146468318
NPI Identifier 1093222507
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Christine Diana Szymanek , COTA

Occupational Therapy Assistant

Active NPI Status
740 S Placentia Ave, Suite 100, Placentia, CA 928706832
Phone: 7146468318
NPI Identifier 1841431574
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Tina Yip , COTA

Occupational Therapy Assistant

Active NPI Status
774 S Placentia Ave Ste 200, Placentia, CA 928706838
Phone: 8008707989
NPI Identifier 1093175937
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Frequently Asked Questions about Occupational Therapy Assistant in Placentia

How do I check a Occupational Therapy Assistant practitioner's license?

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.

Why is a practitioner missing from this list?

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.

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