Edward A. Griffin, MD, Program Director
Dr. Griffin graduated from Louisiana State University School of Medicine. He continued his education with an internship and residency, both in internal medicine at the University of Tennessee Baptist Memorial Hospital in Memphis, Tennessee. Dr. Griffin is board certified by and a diplomate of the American Board of Internal Medicine. He is a fellow of the American College of Physicians. He has more than 20 years of private practice experience. Immediately prior to joining LewisGale, Dr. Griffin served as an associate professor of medicine at Louisiana State University.
Joseph Nelson, MD, Associate Program Director
Dr. Nelson earned his medical degree from VCU Health (formerly known as the Medical College of Virginia) in Richmond, Virginia. He completed both his internship and his residency in internal medicine with the University of Virginia affiliated program in Salem, Virginia. Dr. Nelson completed his fellowship in gastroenterology at the Bowman Gray Center for Medical Education at Wake Forest School of Medicine in Winston-Salem, North Carolina. Dr. Nelson is board certified by and a diplomate of the American Board of Internal Medicine and Gastroenterology Board.
Jonas Rawlins, DO, Associate Program Director
Dr. Rawlins completed his internship and residency in internal medicine at the Virginia Tech Carilion School of Medicine. Prior to that, he earned his osteopathic medicine degree from Edward Via Virginia College of Osteopathic Medicine. Dr. Rawlins graduated magna cum laude with a bachelor of science in biology from James Madison University where he also played varsity football.
Kashyap Patel, MD, Associate Program Director
Dr. Kashyap Patel earned his medical degree from BJ Medical College and Civic Hospital in Ahmedabad, India. He completed his internship and residency at Jamaica Hospital in New York.
Nelson Greene, MD
Dr. Greene completed a residency at Eastern Virginia Medical School in Norfolk, Virginia. He is board-certified in critical care medicine and pulmonology.
Prospero Cortorreal, MD
Dr. Cortorreal received his medical degree from National University Pedro Henriquez in the Dominican Republic before completing his residency training at Deaconess Hospital in St Louis, Missouri.
Brady DeHart, PhD
Dr. DeHart earned his PhD in experimental psychology from Utah State University. He brings a wealth of knowledge in the areas of scholarly activity and research to our program.
Kate Burmaster, MD
Dr. Burmaster is a graduate of Harvard University, where she received her bachelor of arts degree in neuropsychology with a minor in health policy and was a member of the varsity women’s crew team. Dr. Burmaster then earned a master of science at University of California Berkeley, where she founded a free LGBTQ community health clinic. From there, she earned her medical doctorate at University of California San Francisco and completed her internal medicine residency training at Legacy Health in Portland, Oregon.
Yousuf Khan, DO
Dr. Khan earned his Bachelor of Arts in Chemistry from Virginia Tech, followed by a Doctor of Osteopathic Medicine degree from Edward Via College of Osteopathic Medicine, both in Blacksburg, Virginia. Following graduation from medical school, Dr. Khan completed postgraduate training with the Department of Internal Medicine at Broward Health Medical Center in Fort Lauderdale, Florida.