CNS Principal Investigators
David P. Walling, Ph.D.
Dr. Walling serves as Chief Executive Officer and Principal Investigator for CNS. He has participated as a lead or co-investigator in more than 200 clinical studies, with many focusing on schizophrenia and schizoaffective disorder. Dr. Walling has authored numerous articles in leading scientific journals including the American Journal of Psychiatry, American Journal of Psychotherapy, and Journal of Nervous and Mental Disease.
Prior to co-founding CNS, Dr. Walling held the position of Vice President of Clinical Services at both Psychiatric Management Resources, a subsidiary of Universal Health Services, Inc. and Stadt Solutions Pharmacy Corporation. He also served as Assistant Professor and Research Scientist in Psychiatry and Behavioral Sciences at the University of Texas Medical Branch at Galveston.
Dr. Walling received his doctorate in Counseling Psychology from the University of Southern California. He earned a Master of Science degree in Counseling from California State University Fullerton and a Bachelor of Science degree in Counseling Psychology from California State University Long Beach.
Armen Goenjian, M.D., D.F.A.P.A., F.A.C.G.S
Dr. Goenjian has published extensively on post-traumatic stress disorder and depression in peer reviewed journals. He has more than 13 years experience conducting phase I-IV clinical trials specializing in bipolar disorder, depression, schizophrenia, and post-traumatic-stress disorder.
Dr. Goenjian received his Bachelors of Science degree at the American University of Beirut and Doctorate in Medicine at the University of Tennessee. He is a Diplomate of the American Board of Psychiatry and Neurology in Psychiatry and Diplomate of the American Board of Geriatrics.
Mark Leibowitz, M.D.
Dr. Leibowitz received his medical degree from Albert Einstein School of Medicine in New York. He also holds a Bachelor of Arts in Biology from Hofstra University where he graduated Summa Cum Laude. He is board certified in Internal Medicine.
Nirav Patel, M.D.
Dr. Patel is Board Certified from the American Board of Psychiatry and Neurology and the National Board of Medical Examiners Parts I & II. He is affiliated with the Los Angeles Society of Neurological Sciences, the Los Angeles County Medical Association and the American Academy of Neurology. Additionally, Dr. Patel serves as Medical Director of the Stroke Center at Los Alamitos Medical Center and is a part of the Clinical Faculty in the Department of Neurology at Harbor–UCLA Medical Center. He was the former Chief Resident in the Department of Neurology at Harbor-UCLA Medical Center and is a Private Practitioner at Southland Neurologic Associates.
Having received his Bachelors of Science in Biomedical Sciences at University of California, Riverside, Dr. Patel then attended the University of California at Los Angeles School of Medicine and went on to complete his residency at Harbor-UCLA Medical Center in Torrance.
Omid Omidvar, M.D.
Dr. Omidvar received his medical degree, Diplôme d’État de Docteur en Médicine from Faculte de Medecine de Rouen, France. After finishing his residency in Neurology at the Harbor-UCLA Medical Center, he later served as the department’s Chief Resident. Dr. Omidvar currently serves as an Assistant Clinical Professor at the David Geffen School of Medicine at UCLA and is the Co-Medical Director of the MemorialCare Rehabilitation Institute at Long Beach Memorial Hospital.
Steven Reynolds, D.O.
Dr. Reynolds obtained his medical degree at Midwestern University, Chicago College of Osteopathic Medicine and holds an undergraduate degree in Microbiology from San Diego State University. He is Board Certified with the American Board of Family Practice and is a member of the American College of Occupational and Environmental Medicine. Dr. Reynolds holds affiliations with Long Beach Memorial Medical Center, Miller Children’s Hospital and Memorial Women’s Hospital.