Mark Billings
President
Presbyterian Healthcare
Phone: 704-384-6370
Mark Billings is president of Presbyterian Healthcare and most recently was vice president and administrator of Presbyterian Hospital Matthews. Prior to that position he was the vice-president of support services and patient access at Forsyth Medical Center. Prior to joining Novant Health, Mark was chief operating officer at the Naval Hospital at Camp Lejeune, NC. He was also director of naval officer recruiting in Raleigh, NC, and administrator of the Naval Medical Clinic in Norfolk, Virginia.
Mark has a bachelor of science degree from New Hampshire College, Manchester, NH, and a master of healthcare administration degree from the University of North Carolina at Chapel Hill.
Amy Vance
Senior Vice President of Presbyterian Hospital and Chief Nursing
Officer of Presbyterian Healthcare Foundation
Phone: 704-384-6299
Amy is senior vice president of Presbyterian Hospital and chief nursing officer of Presbyterian Healthcare Foundation.
Amy is active in the community and resides with her daughter in Matthews. In addition to her previous service on the board of the Matthews Health Clinic, the Levine Senior Center and the Mint Hill Chamber of Commerce, she currently serves on the Discovery Place Board of Trustees.
Amy earned a bachelor of science in nursing degree from Pace University in Pleasantville, NY, where she attended on an athletic scholarship. She received a master of science in nursing administration from New York University and a master of science in business administration degree from Wingate University.
Tanya Blackmon
President
Presbyterian Hospital Huntersville
Phone: 704-316-4037
Tanya Blackmon is president of Presbyterian Hospital Huntersville. She was formerly chief operating officer of Presbyterian Orthopaedic Hospital and prior to that vice president-administrator. She joined Presbyterian Healthcare in 1992 as director of inpatient discharge planning and subsequently became director of clinical improvement and community care services.
Tanya earned a bachelor of science degree in social work from NC A&T State University, master of science degree in business administration from Queens University of Charlotte, and a master of social work degree from the University of South Carolina.
Tanya was named the 1997 North Carolina Social Work Administrator in Healthcare of the Year, and in 1998 was named one of the Top 40 under 40 by the Charlotte Business Journal.
Roland R. Bibeau
President
Presbyterian Hospital Matthews
Phone: 704-384-6367
Roland Bibeau is president of Presbyterian Hospital Matthews and previously served as chief operating officer. Prior to that he was administrator of Presbyterian Medical Plaza Ballantyne; vice president of Thomasville Medical Center (TMC); vice president/CNO and director of perioperative services at TMC. Prior to joining Novant Health, Roland was surgical services director at East Pasco Medical Center, Zephrhills, FL.
Roland earned a master of science in health services administration from St. Francis College in Joliet, IL and a bachelor of arts degree from St. Leo College, St. Leo, FL. Roland also holds an associate's degree in nursing. He is a member of the American College of Healthcare Executives, the North Carolina Nurses Association and the North Carolina Organization of Nurse Executives. Roland is president of the Triad Health Executive Forum, chairman of the Piedmont Crossing Advisory Council and executive committee member for the Davidson County Community College Foundation. Roland serves in several community organizations, including the Thomasville Chamber of Commerce, United Church Homes and Services, Davidson County March of Dimes and the Lexington Kiwanis Club.
Mike Riley
President
Presbyterian Orthopaedic Hospital and Upstate Carolina Medical Center
Phone: 704-316-1506
Mike Riley is president of Presbyterian Orthopaedic Hospital and Upstate Carolina Medical Center. He was formerly senior director of operations at Presbyterian Orthopaedic Hospital. Prior to that, he held various leadership and nursing roles throughout Presbyterian. Before coming to Presbyterian, Mike served as a staff nurse at the University of California - Davis Medical Center.
Mike earned an associate's degree in nursing from Wake Technical Community College and bachelor of arts degrees in English and psychology from North Carolina State University. He is a graduate of the MBA/MHA program at Pfeiffer University.
Patricia Campbell
Vice President, Women's Services
Phone: 704-384-4065
Pat Campbell is vice president of women's services and previously was executive director of women's and children's services. She was formerly director of women's services for Presbyterian Healthcare. Prior to joining Presbyterian, Pat served in a number of teaching roles at Iredell Memorial Hospital, Mitchell Community College and Mercy Hospital School of Nursing. She also served in clinical roles at Lowrance Hospital in Mooresville, NC.
She holds a bachelor of science degree from Queens University of Charlotte, a master's in education from Winthrop University in Rock Hill, SC, and bachelor's and master's degrees in nursing from the University of North Carolina at Charlotte.
Professional memberships include the American Organization of Nurse Executives, NC Organization of Nurse Executives, American Nursing Association, American College of Health Care Executives, and many others. She currently serves on the board of directors of the Greater Piedmont Chapter March of Dimes, the United Way Women's Health Initiative and the Junior League of Charlotte Children's Advisory Board.
Herb Clegg, MD
President
Novant Medical Group
Phone: 704-384-8800
Dr. Clegg is president of Novant Medical Group. He was formerly president of Presbyterian Medical Group (PMG). He has been chief of the former PMG division of pediatrics since 2000 and a member of PMG since 1994. He is board-certified in pediatrics and pediatric infectious diseases and practices at Eastover Pediatrics.
Dr. Clegg received an undergraduate degree with honors from Davidson College and a medical degree from Duke University School of Medicine. He completed his pediatrics residency at Massachusetts General Hospital, after which he spent two years as an epidemiologist at the Centers for Disease Control; he then completed a chief residency and pediatric infectious disease fellowship at Children's Hospital in Boston.
Dr. Clegg enjoys clinical epidemiology, office-based research, teaching and practice management. He currently serves as president of the North Carolina Pediatrics Society.
John Gardella, MD
Vice President
Clinical Effectiveness
Phone: 704-384-9378
Dr. Gardella is a board-certified internist and pulmonologist who currently serves as medical director for clinical improvement. He attended New York University School of Medicine and did his post-graduate training in internal medicine at NYU Medical Center. He subsequently did his pulmonary fellowship at Bellevue Hospital in New York City. John also holds an MBA from the University of North Carolina in Charlotte.
From 1979-99, Dr. Gardella was a practicing internist and pulmonologist with First Charlotte Physicians, and in 1999, he joined Presbyterian Inpatient Care Specialists (PICS). He has been a clinical instructor in internal medicine for the University of North Carolina and has also served as president of the American Lung Association Metrolina Region. He served as medical director for PICS before assuming his current position with the clinical improvement division of Novant Health. He has also served as a reservist in the United States Navy Medical Corps.
Barbara Lipira, RN, MSN, OCN
Vice President, Oncology Services
Phone: 704-384-5225
Barbara is vice president of oncology services and was formerly executive director. Prior to that, she was manager of cancer research and clinical manager for Presbyterian Oncology Associates. She began her career in pediatrics, working in the intensive care nursery and with the pediatric hematology program. Barbara is an oncology certified nurse with a focus on the comprehensive care and management of people with cancer.
Barbara earned a bachelor of science degree in nursing from the College of New Jersey in Ewing, NJ, and a master of science degree in nursing and chronic illness from the University of North Carolina at Charlotte.
Jason Bernd
Vice President
Presbyterian Cardiovascular Institute
Phone: 704-384-9261
Jason is vice president of the Presbyterian Cardiovascular Institute and formerly director of financial planning and analysis. Prior to joining Novant in 2006, Jason worked at McKinsey & Company, which specializes in healthcare and financial institutions, and served in various roles at New York-Presbyterian Hospital and Intermountain Healthcare.
Jason earned a bachelor of science in chemical engineering degree from the University of Virginia and a master of business administration from Stanford University.
He serves on the board of the Charlotte Symphony Orchestra and the GEANCO Foundation, an organization that is building a hospital in Nigeria. Jason served on the 2010 Presbyterian Healthcare Arts & Science Council Campaign Cabinet and chaired the campaign in 2011.
Janet Smith-Hill 
Sr. Vice President
Human Resources
Phone: 704-384-9617
Janet Smith-Hill is senior vice president of human resources and formerly served as director of employee relations, equal employment opportunity and diversity. Janet also worked as the director of accreditation and regulatory review as well as coordinator of nursing and clinical ancillary services standards.
Janet is a fellow in the inaugural class of Leadership Novant. She was the recipient of the 2005 Diversity in Business Award as recognized by the Charlotte Business Journal and has been recognized as a diversity facilitator. Prior to her employment with Novant Health, Janet worked in various roles at Lexington Memorial Hospital, Aetna Health Plans and Duke University Medical Center. Janet earned a bachelor of science in nursing from the University of North Carolina at Chapel Hill and a master of science in nursing from the University of North Carolina at Greensboro. She was a member of the nursing honor society, Sigma Theta Tau.
Paula Vincent
Sr. Vice President, Operations; Administrative Executive, Center City;
and President, Presbyterian Healthcare Foundation
Phone: 704-384-9735
Paula Vincent is senior vice president of patient care services and chief nursing officer for Presbyterian Healthcare. Paula was formerly vice president and administrator for Presbyterian Hospital Matthews and Presbyterian Surgery Center SouthPark. She also held positions as director of inpatient services for Presbyterian Hospital Matthews, interim chief nursing officer for Presbyterian Hospital, as well as nursing and nurse manager positions in cardiopulmonary rehabilitation, cardiac care, critical care and intensive care.
Paula earned bachelor and master of science degrees in nursing from the University of North Carolina at Charlotte.
She serves on the executive committee of the American Heart Association and served as chair of the annual Heart Gala. She also serves on the boards of the Matthews-Mint Hill Rotary and the Matthews Chamber of Commerce and was a member of the 2001 class of Leadership Matthews.
Thomas N. Zweng, MD
Sr. Vice President and Chief Medical Officer
Phone: 704-384-5733
Dr. Zweng was born and raised in northern California. He attended the University of California at Davis, where he majored in biology and history. He completed his medical school training at the University of California at Los Angeles. Dr. Zweng then spent the next six years at the University of Michigan completing his general surgery residency, including a year of research. Dr. Zweng joined the medical school faculty at the University of Kentucky in Lexington as an assistant professor of surgery. He developed the laparoscopic program for the medical center, performing the first laparoscopic procedures for gallbladder removal, Nissen fundoplication and hernia repair. In addition, Dr. Zweng was the director of surgical endoscopy.
Dr. Zweng has been practicing in Charlotte since January 1996 with the Charlotte Surgical Group. He is board-certified in general surgery and is a fellow of the American College of Surgeons. He is also a member of the trauma service for Presbyterian Hospital. Most recently, he has served as the general surgery department chair and the OR medical director for Presbyterian Hospital. Dr. Zweng’s special interests include laparoscopic, gastrointestinal and bariatric surgery, as well as endoscopy.
Stephen McAdams, MD, FCCP
Vice President and Senior Medical Director
Presbyterian Hospital Specialty Services
Phone: 704-384-9750
Dr. McAdams is vice president and senior medical director for Presbyterian Hospital specialty services. Previously, he was chief executive officer of Mid Carolina Cardiology.
Dr. McAdams, who is board-certified in pulmonary disease and internal medicine, joined Mid Carolina Cardiology after moving to Charlotte in 1999. He graduated from Indiana University School of Medicine and completed his residency in internal medicine and fellowship in pulmonary disease at the Naval Hospital in San Diego, CA. Dr. McAdams practiced pulmonary and critical care medicine for 13 years before becoming a full-time physician executive in 1994. In 1997, Dr. McAdams joined Nasser, Smith & Pinkerton Cardiology in Indiana as a medical director and was later promoted to chief operations officer.
Dr. McAdams maintains several professional society memberships, including the American College of Physician Executives, Medical Group Management Association, American College of Chest Physicians and the American Medical Association. He is a retired Navy Medical Corps officer and attained the rank of captain.

