Dr. Tandan is Professor and Vice Chairman in the Department of Neurology, at the University of Vermont College of Medicine in Burlington, Vermont. He serves as the Director of the Neuromuscular Disorders Section, the ALS Clinical and Research Center, the Muscular Dystrophy Association Clinic, and the International Postpolio Foundation Clinic at Fletcher Allen Health Care and the University of Vermont College of Medicine. He received his medical degree from King George's Medical College at the University of Lucknow, India. He completed residencies in Internal Medicine in England; in Neurology at the University of Birmingham, England, and at the University of Michigan, Ann Arbor. He trained as a Fellow in Clinical Electromyography and Neuromuscular Diseases at the University of Michigan, and as a Neuromuscular Fellow at the University of Vermont College of Medicine. He is board certified in Neurology and Neuromuscular Medicine.

Dr. Tandan is a Fellow of the Royal College of Physicians of the United Kingdom, and a Fellow of the American Academy of Neurology. He is on the Medical Advisory Board of the National ALS Association, and serves as Chairperson of the Medical Directors of the National ALS Association ALS centers. He has served as Principal Investigator of many studies, and has collaborated in several others. His current research interests are in clinical trials and the study of energy metabolism in ALS using stable isotope technology. He has authored and co-authored over 190 scientific abstracts and articles.