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Steven H. Reynolds, D.O.

Principal Investigator, Collaborative Neuroscience Research, Board Certified Family PractitionerBoard Certified Family Practitioner

Dr. Reynolds has served as a principal investigator at CNS since 2010, conducting trials at the Long Beach location. He has specialized in trials in healthy subjects as well as ethnobridging trials and internal medicine indications. Dr. Reynolds has extensive experience conducting complex Phase I and IIa studies.

Work History

Dr. Reynolds has participated as an investigator in over 200 trials, most of which have been Phase I or IIa. His experience includes specialized studies such as FIH, SAD/MAD, PK/PD, bioequivalence, DDI, food effect, and Japanese bridging. Dr. Reynolds has practiced family medicine since 1995 and is currently in private practice with Naples Medical Group Long Beach. He maintains a position as an Associate Professor at the University of Irvine College of Medicine and also acts as a Police Surgeon and Consultant for the City of Long Beach Police Department. Dr. Reynolds holds affiliations with Long Beach Memorial Medical Center, Miller Children’s Hospital, and Memorial Women’s Hospital. He’s a member of many professional organizations including the American Academy of Family Physicians and the California Academy of Family Physicians, Long Beach Chapter.


Dr. Reynolds is board certified in family practice. He obtained his medical degree from Midwestern University, Chicago College of Osteopathic Medicine and an undergraduate degree in Microbiology from San Diego State University. He completed Family Practice Residency at Long Beach Medical Center in Long Beach, CA.