Master of Science in Chemistry from The University of Texas Rio Grande Valley
Specializing in clinical trial site operations and toxicology laboratory management
Grounded in Good Clinical Practice (GCP) and laboratory management standards
Esther Owusu serves as Director of Research at Comprehensive Pain and Spine Specialists, where she leads site operations for multi-center clinical trials and manages the practice’s toxicology laboratory. Her work bridges laboratory science and clinical research, with a focus on maintaining high-quality diagnostic testing, and adherence to research protocols to support patient care.
Esther holds a Master of Science in Chemistry from The University of Texas Rio Grande Valley and a Bachelor of Science in Chemistry from Kwame Nkrumah University of Science and Technology. With experience grounded in Good Clinical Practice (GCP) and laboratory management, she brings a meticulous, detail-oriented approach to research operations, laboratory workflows, protocol compliance, and data quality.
Outside of the lab and clinic, Esther enjoys staying active at the gym and unwinding with a good book.
Stephen A. Gephardt, MD
Education and Achievements
Education
Medical Degree: Indiana University School of Medicine
Fellowship: Arizona Pain Specialists – Scottsdale, AZ
Achievements
Served as the head of Trauma Anesthesia at UMC Trauma Center from 1998 – 2003
Co-founded PBS Anesthesia in 1995
Member of the American Medical Association, Clark County Medical Society, Arizona Medical Association, Nevada Medical Association, and American Society of Interventional Pain Physicians.