At New West Physicians, we have been conducting clinical research studies for our patients since 1997. Our research clinic is located in Golden and is directed by our Executive Director of Clinical Research, Ken Cohen, M.D.  Dr. Cohen works with several pharmaceutical companies and selectively chooses clinical studies that he feels will be the best for our patients while still advancing medical research for new medicines. All studies are approved by the Food and Drug Administration (FDA) and conducted by our experienced and caring research team. To learn more about how clinical research studies work, visit

New West Physicians Clinical Research

Kenneth Cohen, M.D.,
Director of Clinical Research

Dr. Kenneth Cohen has successfully developed, directed, evaluated and reported numerous clinical quality studies in primary care, including tobacco cessation, osteoporosis, asthma, diabetes, hypertension, and ischemic vascular disease. Dr. Cohen has served as principal investigator of numerous clinical research trials, in areas including COPD, Type II diabetes, hypertension, and cardiovascular disease. He has presented at national and local conferences and symposia, and has authored numerous publications and reports.

New West Physicians Clinical Research

Gwen Carangi, CCRC

Clinical Research Manager

Gwen has a Bachelor’s degree in Psychology from Temple University in Philadelphia and has been certified as a Clinical Research Coordinator since 1997. Prior to joining New West Physicians in 2009, she worked in clinical research for diseases such as cancer, rheumatology, and pulmonary hypertension. She has two children and enjoys being outdoors in beautiful Colorado. Her interests include travel, music, jogging, mountain biking, and skiing.

New West Physicians Clinical Research

Amber Bretz,  CCRC

Clinical Research Coordinator

Amber is a native of Colorado and graduated from the University of Northern Colorado with a Bachelor’s degree in Kinesiology with emphasis in Fitness and Exercise. Amber was introduced to clinical research 15 years ago and has worked with the many sides of clinical research trials but enjoys the patient care aspect the most. She has been certified as a Clinical Research Study Coordinator since 2003. She is an avid volleyball player and enjoys running and spending time with her dogs.

New West Physicians Clinical Research

Bristol Pavol,  PA-C

Physicians Assistant – Certified, Clinical Research Coordinator

Bristol graduated from CU Boulder in 1990 and received her Master’s in Child Health and Physician Assistant degree at the University of Colorado Health Sciences Center in 1997. She worked at New West Physicians’ Arvada Family Practice Clinic as a Physician’s Assistant for seven years and has been working in Clinical Research since 2004. She enjoys the dual aspects of patient care combined with cutting edge clinical research that the New West Physicians Research Department offers. She has a daughter and a son and enjoys kickboxing and fishing in Canada every summer.

New West Physicians Clinical Research

Amber Voit, RMA

Registered Medical Assistant – Clinical Research Assistant

Amber is a Registered Medical Assistant with 10 years of medical experience and was introduced to Clinical Research four years ago. Amber’s favorite aspect of the job is the one-on-one patient care Clinical Research offers and watching patients achieve goals such as lowering blood sugars or losing weight. Amber was born and raised in Arizona and moved to Colorado in 2011 with her husband and two children. When not working, Amber enjoys hiking, fishing and camping with her family in the Colorado Rockies.