Dr. Gleser founded HealthMark in 1985 after overcoming cancer. Born in South Africa, he completed his medical residency and fellowship at Boston University Medical Center in Internal Medicine and Hematology. He is also a certified Acupuncturist, having completed his certification at UCLA in 1996. Dr. Gleser served as Corporate Medical Director for U.S. West and was a Vice President of Columbia Healthcare, once Denver’s largest health care provider. Dr. Gleser is also an author, a former radio personality, and former Medical Director of the Pritikin Longevity Center. He is married and enjoys running, biking, and participating in triathlons.