Glenn Steele, M.D., who pushed to the national forefront his value-based health care model and expanded Geisinger Health System's footprint, will resign as chief executive officer in June. The Geisinger Health System Foundation Board of Directors launched a search to find Dr. Steele's successor, officials announced Monday. Dr. Steele, who has held the position since March 2001, will continue to work as the chairman of xG Health Solutions, an independently operated organization based in Columbia, Maryland, that helps providers nationwide create value and improve quality. Recognized among the nation's most influential physician executives, Dr. Steele earned $5.4 million in total compensation in 2011, according to the most recent 990 form.