Marc D. Halley is president and chief executive office of the Halley Consulting Group in Westerville, Ohio. Halley Consulting is a physician practice management and consulting firm that specializes in the strategic development and performance of hospital-owned practice networks and private medical practices. Mr. Halley is the author of The Primary Care Market Share Connection, and a co-author of The Business of Health Care. Mr. Halley received his masters of business administration degree from Utah State University in Logan, Utah.