Glenn Giessel, M.D., CPI — Medical Director
Board Certified in Pulmonary Medicine/Critical Care Medicine and Sleep Medicine.
Dr. Giessel has over 17 years’ experience in conducting Phase II – IV clinical trials and has received his research certification as a CPI by APPI/ACRP.

Douglas W. Puryear, M.D.
Board Certified in Pulmonary Medicine/Critical Care Medicine/Sleep Medicine.
Dr. Puryear has been involved in pulmonary clinical research at our center for 15 years.

Ritsu Kuno, M.D., CPI
Board Certified in Pulmonary Medicine/Critical Care Medicine.
Dr. Kuno has received his research certification as a CPI by APPI/ACRP. Dr. Kuno has been involved in pulmonary clinical research at our center for 14 years. He is the current compliance officer for our research division.

Jamie C. Hey, M.D.
Board Certified in Pulmonary Medicine/Critical Care Medicine
Dr. Hey has been involved in our clinical research program for over eight years. Prior to joining our staff, Dr. Hey participated in many clinical trials at the University of Maryland. Dr. Hey specializes in performing clinical trials studying pulmonary hypertension and emphysema.

Scott K. Radow, M.D., CPI
Board Certified in Pulmonary Medicine/Critical Care Medicine/Sleep Medicine
Dr. Radow has been involved in our clinical research program for over twelve years and over the past six years has served as a principal investigator for COPD and Asthma clinical trials. He serves as assistant director of our research division. Dr. Radow has received his research certification as a CPI by APPI/ACRP.

Kenneth S. Haft, M.D.
Board Certified in Pulmonary Medicine/Critical Care Medicine
Dr. Haft has been involved in our clinical research program since we opened our Santa Rosa location in 2006. He serves as a principal investigator in our COPD trials.

Michael B. Polsky, M.D., CPI
Board Certified in Pulmonary Medicine/Critical Care Medicine
Dr. Polsky has been involved in clinical research over the past five years and has served as a principal investigator for our COPD studies. Dr. Polsky has received his research certification as a CPI by APPI/ACRP.