Dr. Armstrong is Professor of Surgery at the University of Southern California. Dr. Armstrong holds a Masters of Science in Tissue Repair and Wound Healing from the University of Wales College of Medicine and a PhD from the University of Manchester College of Medicine, where he was appointed Visiting Professor of Medicine. He is the founder and co-director of the Southwestern Academic Limb Salvage Alliance (SALSA).

Dr. Armstrong has produced more than 510 peer-reviewed research papers in dozens of scholarly medical journals as well as over 90 books or book chapters. He is co-Editor of the American Diabetes Association’s (ADA) Clinical Care of the Diabetic Foot, now in its third edition.

Dr. Armstrong is past Chair of Scientific Sessions for the ADA’s Foot Care Council, and a past member of the National Board of Directors of the American Diabetes Association. He sits on the Infectious Disease Society of America’s (IDSA) Diabetic Foot Infection Advisory Committee and is the US-appointed delegate to the International Working Group on the Diabetic Foot (IWGDF). Dr. Armstrong is the founder and co-chair of the International Diabetic Foot Conference (DF-Con), the largest annual international symposium on the diabetic foot in the world.