Pharmacists in Ontario, CA
Browse 88 Pharmacist providers listed in NPPES with a practice address in Ontario, California.
How Ontario compares with the U.S.
Ontario has 49 Pharmacists per 100,000 residents, about 56% of the U.S. rate of 86.
That is 88 active Pharmacists with a practice address in Ontario, for a population of 180,547.
The California rate is 83 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.
None of the Pharmacists in Ontario 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 Registry addresses can be out of date.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 · 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).
Bann Aboudi Allyas
Pharmacist
Bishoy Roshdy Boctor , RPH
Pharmacist
Dr. Kathlynn Uyen Chu , PharmD
Pharmacist
Kamilia Hamdulla
Pharmacist
Dr. Minh Tram Ho , PharmD
Pharmacist
Nahla Makram Khella Hozain
Pharmacist
Dr. Joanne Kuo , PharmD
Pharmacist
Dr. Vickie H Le , PharmD
Pharmacist
Dr. Jong Chul Lee , PharmD
Pharmacist
Dr. Gerard Leong , PharmD
Pharmacist
Dr. Allan Manio , PharmD
Pharmacist
Gustavo Martinez , RPH
Pharmacist
Dr. Hector Mendoza , PharmD
Pharmacist
Dien D Nguyen , RPH
Pharmacist
Blessy M Reddy
Pharmacist
Amy Tran
Pharmacist
Dr. Michael Wan , PharmD
Pharmacist
Jessica J Wu
Pharmacist
Frequently Asked Questions about Pharmacist 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
Pharmacists in Other California Cities
Cities with the most listed practitioners first.