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Pediatrics in Ontario, California

Data updated monthly · Last refresh September 2026

8 Pediatrics providers practice in Ontario. Listings are drawn from federal public records and are not endorsements.

Pediatrics providers in Ontario

Listed alphabetically. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.

Dr. Alexandora Siporin
Ontario, CA · No drug or device payments recorded (2025) · (505) 934-0860
Dr. Benjamin Kershberg, M.D.
Ontario, CA · No drug or device payments recorded (2025) · (909) 724-2554
Dr. Catareya Liep, MD
Ontario, CA · $56 in drug and device payments (2025) · (909) 988-8203
Dr. Jason Lue, D.O.
Ontario, CA · No drug or device payments recorded (2025) · (323) 896-7893
Dr. Nawal Kamel, MD
Ontario, CA · No drug or device payments recorded (2025) · (909) 467-0797
Dr. Theodora Ewusi-mensah, MD
Ontario, CA · No drug or device payments recorded (2025) · (909) 983-4746
Dr. Urmila Patel, M.D.
Ontario, CA · No drug or device payments recorded (2025) · (909) 467-0797
Dr. Yolanda Quam, M.D.
Ontario, CA · No drug or device payments recorded (2025) · (909) 673-9125

Conditions Pediatrics providers in Ontario, California commonly treat

Patients often search by condition rather than specialty. These are conditions typically managed by Pediatrics providers. Individual practices vary, so confirm with the provider before booking.

Common questions

How many Pediatrics providers are in Ontario, California?

There are 8 Pediatrics providers with active NPI records practicing in Ontario, according to federal NPPES data refreshed monthly.

What conditions do Pediatrics providers in Ontario treat?

Pediatrics providers in Ontario commonly treat well child visits, childhood asthma, ear infections, immunizations, developmental screening and related conditions. Individual practices vary, so confirm with the provider before booking.

Where does this data come from?

Provider records come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.

All specialties in Ontario Pediatrics across California

Sources: NPPES (CMS), Doctors and Clinicians national files, CMS Open Payments 2025. Updated monthly. Records are public federal data and are not verified credentials, licensure checks, or endorsements. This directory is informational and not medical advice. How we build this directory.