Our Team

Board-certified physicians and dedicated research professionals committed to advancing clinical research and delivering exceptional patient care at every visit.

Our Team

Board-certified physicians and dedicated research professionals committed to advancing clinical research and delivering exceptional patient care at every visit.

Meet Principal Investigators

Alan Shackelford, MD

Internal Medicine

Diabetes, Metabolic Disorders, Hypertension

Centennial Clinical Trials, Colorado

Johnny Cheng, DO

Internal Medicine

Diabetes, Metabolic Disorders, Hypertension

Centennial Clinical Trials, Colorado

Charles Shuman, MD

Psychiatry

Major Depressive Disorder (MDD), Anxiety Disorders, Neurodevelopmental & Disruptive Behavior Disorders

Centennial Clinical Trials, Colorado