Dr. Ellis is the author or co-author of more the 40 scientific medical articles and book chapters. He is past president of the Allegheny County Medical Society, the Medical Alumni Association of the University of Pittsburgh School of Medicine and medical staff of UPMC Presbyterian.
He is a member of the national board of trustees of the Leukemia Society of America and has served as its president. The University of Pittsburgh established an endowed chair in honor of Dr. Ellis in hematology and oncology. Dr. Ellis is the co-medical director of the University of Pittsburgh Medical Center's Corporate Health Program and medical director of the UPMC International Travel Clinic.
He received his bachelors degree from the University of Notre Dame and his medical degree from the University of Pittsburgh where he completed an internship and residency in internal medicine and a fellowship in hematology.
Dr. Ellis is board certified in internal medicine.