Physician Assistants in Rialto, CA
Browse 17 Physician Assistant providers listed in NPPES with a practice address in Rialto, California.
How Rialto compares with the U.S.
Rialto has 16 Physician Assistants per 100,000 residents, about 33% of the U.S. rate of 49.
That is 17 active Physician Assistants with a practice address in Rialto, for a population of 104,143.
The California rate is 37 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 Physician Assistants in Rialto 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 Registry addresses can be out of date.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).
Physician Assistant Medicare (PECOS) Enrollment & Ordering Eligibility
Medicare enrollment and order/referring eligibility listed by CMS for Physician Assistant practitioners in Rialto, CA
Grace A Buonavita , PA-C
Physician Assistant
Martha Evangeline Colunga , PA-C
Physician Assistant
Hilda Mancilla , PA-C
Physician Assistant
Mickoyan Nakita Poole , PA-C
Physician Assistant
Ira Pauline Santos , PA-C
Physician Assistant
Diego H Sevilla , PHYSICIAN ASSISTANT
Physician Assistant
Shannon Shieh
Physician Assistant
Wariam Kaur William , PA-C
Physician Assistant
Michael Alvarez , PA-C
Physician Assistant
Gabriela Alexandra Armenta , PA-C
Physician Assistant
Adair Rutherford Buckner , PHYSICIAN ASSISTANT
Physician Assistant
Luis M Buenrostro Martinez , MA
Physician Assistant
Rogelio Lira
Physician Assistant
Kristen Taylor Martini , PA-C
Physician Assistant
Shannon Michelle Meza
Physician Assistant
Mariam Medhat Sorial , PA
Physician Assistant
Katherine Elizabeth Vazquez , PA-C
Physician Assistant
Frequently Asked Questions about Physician Assistant in Rialto
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 Rialto
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