Ruben Ruiz, M.D.
Founder/Medical Director

Ruben Ruiz, M.D., is a veteran internist who has also taught medicine for Stanford University School of Medicine and  UCLA / Charles R. Drew University of Medicine and Science. In addition to operating well established and highly popular family medical clinics in Ontario and Rialto, Dr. Ruiz operates a high successful MedSpa and Wellness Center also in Ontario.

After being graduated from Loyola Marymount University in Los Angeles in 1978, Dr. Ruiz attended UCLA School of Medicine, where he was graduated in 1982. He performed his internship and residency in the Department of Internal Medicine at King Drew Medical Center in Los Angeles between 1982 and 1985.  He began private practice in 1991, with the launch of Clinica Medica Familiar, which now operates the trio of highly successful Family Medicine and MedSpa clinics.

Dr. Ruiz’s extensive medical experience includes prestigious positions that include Clinical Preceptor of the Physician’s Assistant programs at Stanford University School of Medicine and College of Osteopathic Medicine of The Pacific; Assistant Professor of Internal Medicine at UCLA/Charles R. Drew University of Medicine and Science.

His professional appointments include Chairmanship, Physician Advisory Committee, Quality Assurance Committee, and Utilization Review Committee with prominent institutions such as King Drew Medical Center/Community Health Plan at King Drew, L.A. Immunizations Task Force, and Cerritos College.  He has also been a recipient of the Physician’s Recognition Award from the American Medical Association.

Dr. Ruiz has also authored papers and lectured at celebrated institutions such as Charles R Drew/UCLA School of Medicine, St. Mary’s Medical Center, and King Drew Medical Center, on a wide range of topics in Internal Medicine.

Dr. Ruiz is licensed by the state of California and has enjoyed private practice since 1991.  He is fluent in both English and Spanish.  His desire is to provide the highest standard of comprehensive care, at an affordable cost, in a warm and caring environment.