Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Troy Williamson

Individual provider Physician Assistant · NPI 1750166591

Troy Williamson is a Physician Assistant in Los Alamitos, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2023
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Practice location Address checks out

3751 Katella Ave
Los Alamitos, CA 90720-3113
Phone: (562) 598-1311
Show map & directions

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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence PA63942 (CA)

Record details

NPI number1750166591
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorYes
NPI enumeratedAugust 29, 2023
Last updated in NPPESJanuary 27, 2024
Certification dateJanuary 27, 2024

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients75
Services billed 133 a service is one billed item, such as a visit, a test or a procedure
Average patient age70

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

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