John Callahan

John Callahan has extensive work experience in sales and marketing roles. John worked as the Director of Business Development at Halpern Eye Associates, where they focused on increasing patient base and revenues. Prior to that, they served as the Eastern Regional Business Manager at Kremer Laser Eye Center, where they were responsible for managing multiple surgery centers and a network of optometrists. John also held the position of Eastern VP Sales at Maxxim Medical and Boundary Health Care. Earlier in their career, they worked in sales and marketing at Kendall Company.

John Callahan attended La Salle University and studied liberal arts. No specific start or end year for their education at this institution is provided.