John has co-founded eight life sciences companies, including Insulet, a disruptive insulin delivery company. He is the managing director of Healthcare Capital Consulting LLC, which advises early-stage life sciences companies. He is the former President and Chief Executive Officer of the Joslin Diabetes Center, the world’s leading diabetes research, clinical care, and education organization and he was a co-founder of Prism Venture Partners, a venture capital firm.

Previously, he was a general manager at Pfizer/Valleylab, where he was responsible for Pfizer’s Hospital Products Group’s minimally invasive surgery and new medical technologies business. As President/General Manager at Pfizer/Strato, he led the growth of a rapidly evolving vascular access medical device business.

A native of Massachusetts, he holds an M.S. in Business and a B.B.A. cum laude from the University of Massachusetts at Amherst and he is a Certified Public Accountant.