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Registered Dietitian in Ontario, California

Data updated monthly · Last refresh September 2026

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

Registered Dietitian 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. Ashley Ramirez, RD, CDCES
Ontario, CA · No drug or device payments recorded (2025) · (909) 935-6455
Dr. Diana Torres, M.P.H., R.D.
Ontario, CA · No drug or device payments recorded (2025) · (909) 947-4057
Dr. Jocelyn Torres
Ontario, CA · No drug or device payments recorded (2025) · (909) 224-1033
Dr. Lian Liu, MPH, RD, CDE
Ontario, CA · No drug or device payments recorded (2025) · (909) 724-5000
Dr. Nasira Burkholder-cooley, DRPH, RD
Ontario, CA · No drug or device payments recorded (2025) · (844) 695-4331
Dr. Rachelle Bocalbos, R.D
Ontario, CA · No drug or device payments recorded (2025) · (310) 347-9763
Dr. Rebekah Acosta, RDN
Ontario, CA · No drug or device payments recorded (2025) · (909) 994-0014
Dr. Vanessa Felix, RD
Ontario, CA · No drug or device payments recorded (2025) · (626) 434-6127

Common questions

How many Registered Dietitian providers are in Ontario, California?

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

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 Registered Dietitian 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.