Memorial Health System Leadership
President and Chief Executive Officer,
Memorial Health System
Edgar J. Curtis, FACHE
Ed Curtis is President and Chief Executive Officer of Memorial Health System in
Springfield, IL. Prior to assuming the role of President and CEO in January 2008, Curtis
had served as the Health System's Executive Vice President and Chief Operating Officer
for 15 years. Curtis has 37 years of healthcare experience.
Curtis began his career as a registered nurse at Memorial Medical Center in 1975. He went on to hold
management and administrative positions in the medical center from 1979 to 1993, when he was named Senior Vice President and Chief Operating Officer, providing senior‐level administrative leadership for the
overall direction, operations and coordination of the hospital.
In 1994, Curtis assumed responsibilities as Executive Vice President and Chief Operating Officer of Memorial
Health System, providing administrative leadership for the overall direction, coordination and delivery of
patient care services and all other operations for Memorial Health System's entities. Those entities are:
Memorial Medical Center in Springfield, IL; Abraham Lincoln Memorial Hospital in Lincoln, IL; Taylorville
Memorial Hospital in Taylorville, IL; Memorial Physician Services; Memorial Home Services; and Mental
Health Centers of Central Illinois.
Curtis received a Bachelor of Science Degree in Nursing from Southern Illinois University at Edwardsville. He
graduated with honors with a Masters Degree in Business Administration from the University of Illinois at Urbana/Champaign, and is a Fellow in the American College of Healthcare Executives.
Curtis is active in healthcare associations on a local, regional, and national level. He is a member of the Board
of Directors for VHA Mid‐America and VHA Mid‐America Service Solutions, as well as a member of the VHA
National Membership Shareholder Evaluation Committee. He is on the board of the Illinois Foundation for
Performance Excellence, as well as the board of the Illinois Hospital Association, where he serves on both the
Strategic Planning Committee and the Political Action Committee. He is a founding board member for the
Lincoln Land Health Information Exchange and the BJC Collaborative.
In addition to his service to Memorial, Curtis is active in community affairs. He is Past Chairman and current
Board Member for the Central Illinois Food Bank. He also serves as a Board Member and is the Immediate
Past Chairman for the Springfield Urban League. He was on the Board of Directors for the United Way of
Central Illinois for six years, part of which he served as Chairman of the Board. Curtis has also served on the
Board of Trustees for Downtown Springfield, Inc. and is currently a member of the taskforce for the Q5
Medical Industry Initiative for the Greater Springfield Chamber of Commerce, and serves as a member of the
Chamber’s Strategic Leadership Council.
Executive Vice President and Chief Operating Officer, Memorial Health System
Charles Callahan, PhD, MBA, FACHE
Charles Callahan became executive vice president and chief operating officer for Memorial Health System in April 2014.
Dr. Callahan joined Memorial in 1991 as a staff rehabilitation psychologist after earning his doctoral degree in clinical psychology at the University of Nebraska–Lincoln and completing a neuropsychology specialty internship at the University of Missouri–Columbia School of Medicine. He became administrator for Neuromuscular Sciences and Orthopedics in 1997, adding Emergency Services three years later. In 2008, Callahan was promoted to vice president of operations, gaining valuable experience in the areas of Medical Imaging, Laboratory Medicine, Pharmacy and Dietary Services. In 2013, his title changed to senior vice president and chief quality officer to reflect an expanding organizational emphasis on quality and safety processes.
Dr. Callahan earned his MBA at the University of Illinois–Springfield in 2004. He is a fellow of the American College of Healthcare Executives and the American Psychological Association and is board-certified in rehabilitation psychology by the American Board of Professional Psychology. He has nearly 50 professional publications in the areas of brain injury rehabilitation, neuropsychology, emergency/trauma medicine, healthcare process improvement and outcomes measurement. He also has served on the editorial boards of Rehabilitation Psychology and the Journal of Head Trauma Rehabilitation and is a past president of the American Psychological Association’s Division of Rehabilitation Psychology.
Dr. Callahan is co-executive director for the Midwest Healthcare Quality Alliance, a partnership between Memorial Health System and Southern Illinois University HealthCare. From 2008 to 2014, he served on the Board of the United Way of Central Illinois.
Senior Vice President and Chief Medical Officer, Memorial Health System
Rajesh G. Govindaiah, MD
Dr. Govindaiah became the health system's senior vice president and chief medical officer on May 1, 2010.
He is responsible for administrative and clinical leadership and coordination for the health system's medical staff, graduate medical education and physician alignment activities. He will collaborate with physicians, residents and the administrative/clinical staffs of all health system affiliates to streamline operating systems. He also oversees activities focused on improving patient outcomes and supporting the health system mission to improve the health of the people and communities we serve.
A 2000 graduate of the University of Michigan Medical School, Dr. Govindaiah completed his internal medicine residency at St. Joseph Mercy Hospital in Ann Arbor in 2005. He joined Springfield Clinic in 2006 and served there as Chairman of the Department of Hospital Medicine. Prior to that, he participated in similar clinical activities at St. Joseph Mercy Hospital in Ann Arbor.
Dr. Govindaiah has been actively involved in many quality initiatives at Memorial Medical Center, including the Glycemic Control Mentored Implementation Program; the Physician Information Technology Advisory, Clinical Performance, Medical Record and Utilization Management Committees; Mortality Review conferences and daily multidisciplinary patient rounds.
Senior Vice President and Chief Nursing Officer, Memorial Health System
Marsha Prater, Ph.D., R.N., NEA-BC, FACHE
Dr. Prater brings over 28 years of nursing and leadership experience to Memorial Health System. As senior vice president of patient care services, Dr. Prater oversees the integration of the philosophy, goals, and objectives of Memorial Health System into the daily operations of the patient care delivery system across the continuum of care.
Dr. Prater also holds adjunct faculty positions at Mennonite College of Nursing at Illinois State University, Southern Illinois University - Edwardsville (SIUE) School of Nursing and SIU School of Medicine.
She has been with Memorial since 1990, initially serving as the administrator for Oncology Services until assuming her current role. Prior to coming to Memorial, Dr. Prater was an assistant professor of surgery and a staff nurse at SIU School of Medicine.
Dr. Prater received her bachelor's degree from Illinois Wesleyan University School of Nursing.
She obtained her master's and doctorate degrees from Southern Illinois University. She is a fellow in the
American College of Healthcare Executives (FACHE) and holds ANCC certification as a nurse executive advanced-board certified (NEA-BC). She is also a member of several professional nursing and healthcare leadership organizations.