Michelle O'Neil, DO

Dr. O'Neil is a family doctor with 10 years of service in the Montclair and Rancho Cucamonga area. She specializes in adolescent and preventive health, and has worked with patients from many different backgrounds. Dr. O'Neil values clear communication to make sure her patients understand their health, and she works closely with them to provide guidance on the best treatments. In her personal life, she enjoys spending time with her three children.

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