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Administration
Senior leaders work diligently with their physician partners to ensure that high quality healthcare services are provided throughout all of our Presbyterian Healthcare facilities. Patients are our primary focus. Employees are our primary assets. Physicians are our primary partners.


Carl Armato

President and Chief Executive Officer Southern Piedmont Region
Phone: 704-384-9120


Carl Armato is president and chief executive officer for Presbyterian Healthcare and the Southern Piedmont Region of Novant Health. Prior to his current position, Carl was chief operating officer of Presbyterian Healthcare. He previously served as senior vice president of materials management and logistics in both the Southern Piedmont and Triad Regions of Novant Health, as well as vice president of finance and operations for the physician divisions in both regions.

Prior to joining Novant, Carl served as vice president of operations for First Care Physicians and director of finance for the General Health System in Baton Rouge, Louisiana. He also served as a senior tax/audit consultant for Ernst & Young in their Baton Rouge office.

Carl received a Bachelor of Science degree in business administration-accounting from the University of Southwestern Louisiana. He is a certified public accountant licensed in Louisiana and North Carolina. He is a member of the American Institute of Certified Public Accountants, the Louisiana Society of Certified Public Accountants, the N.C. Society of Certified Public Accountants and the Healthcare Financial Management Association.


 Roland Bibeau
Administrator of Presbyterian Medical Plaza - Ballantyne
Phone: 704-384-6391


Roland R. Bibeau, previously served as vice president for Thomasville Medical Center (TMC), and was responsible for several clinical service lines, case management and customer service. Prior to that position, Roland served as a vice president/CNO and director of Perioperative Services at TMC, and Surgical Services director for nine years at East Pasco Medical Center, Zephrhills, Florida.

Roland earned a M.S. in Health Services Administration from St. Francis College in Joliet, Illinois and a B.A. from St. Leo College, St. Leo, Florida. Roland also holds an Associate Science 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 a President for 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.

Roland enjoys family outings and playing golf in his spare time.


Mark Billings
Vice President/Administrator of Presbyterian Hospital Matthews
Phone: 704-384-6370



Mark Billings is vice president and administrator for Presbyterian Hospital Matthews and was most recently 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, N.C. He was also director of naval officer recruiting in Raleigh, N.C. 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.


Tanya Blackmon
Vice President/Administrator of Presbyterian Orthopaedic Hospital
Phone: 704-384-7460

Tanya Blackmon is vice president/administrator for Presbyterian Orthopaedic Hospital. 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 N.C. 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. She has two teenage children.


Patricia Campbell
Executive Director Women's and Children's Services
Phone: 704-384-4065

Pat Campbell is executive director of women's and children's services at Presbyterian Hospital. 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, N.C.

She holds a Bachelors of Science degree from Queens University of Charlotte, a Masters in Education from Winthrop College, Rock Hill, S.C., and bachelors and masters degrees in nursing from UNC Charlotte.

Professional memberships include the American Organization of Nurse Executives, N.C. Organization 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, Presbyterian Medical Group
Phone: 704-384-8800


Herb Clegg, M.D., is president of Presbyterian Medical Group (PMG). He has been chief of the 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 Center 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.


Larry Elmore
Vice President of Operations for the Southern Piedmont Region
Phone: 704-384-3857


Larry Elmore is vice president of operations at Presbyterian Hospital. Prior to joining Presbyterian in February 2004, he was director of psychiatric services at Gaston Memorial Hospital.

Larry received his Bachelor of Arts degree in sociology from The College of William and Mary and a Master of Arts from the School of Social Service Administration at the University of Chicago. He also holds a Master's degree in Healthcare Administration from UNC-Charlotte.

In his spare time, Larry enjoys fly fishing and shooting sports. He is also a published genealogical researcher.


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 for Novant Health Southern Piedmont Region.  He attended New York University School of Medicine, and did his post-graduate training in internal medicine at the N.Y.U. Medical Center. He subsequently did his pulmonary fellowship at Bellevue Hospital in New York City. John also holds an MBA degree 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 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.

Dr. Gardella is an avid reader with particular interest in history and literature, especially the works of Shakespeare. He has studied piano, and is a lover of many musical genres especially baroque, classical and jazz.  He also is a member of the American Bach Society.


Donald Jonas
Executive Director of the Presbyterian Hospital Foundation
Phone: 704-384-4048

Donald has served as senior vice president for community philanthropy at Foundation for the Carolinas in Charlotte since May 2002. There, he directed grants, provided philanthropic counsel, and developed new collective giving programs for the largest community foundation in the Carolinas. He gained additional philanthropy experience as a research fellow for the Hudson Institute at the Southeast Field Office in Charlotte from May 1999 to April 2002.

Additionally, Donald was a research fellow for the Welfare Policy Center at the Hudson Institute in Madison, Wis., where he was instrumental in an overall quality improvement process of one of the largest welfare service providers in the country.

Donald received a bachelor of arts in political science from the University of North Carolina and a master of arts in political science from Appalachian State University. He also holds a doctorate in political science from the University of Kentucky.


Sean Keyser
Vice President Organizational Improvement and Service Excellence
Phone: 704-384-9464


Sean has administrative oversight for operational improvement and service excellence for the Southern Piedmont Region of Novant Health.

Prior to joining Novant, Sean served as Vice President of Hospital Operations for Healthcare Management Directions, Inc. Sean provided administrative support and direction to HMD's Smart Hospitals by supporting all facets of clinical, financial, governance, and service elements from initial start-up through on-going operations.  Sean has also served as Vice President and Senior Consultant with Executive Learning, Inc. Prior to this, he was Vice President of Operations for Candler Hospital in Savanna, Georgia.

Sean has a bachelor's degree in Marketing & Communications from the University of West Florida.

Sean is married to Kimberly Keyser and they have three children, Denny, Chelsea and Logan.


Jeffery T. Lindsay
Vice President/Administrator of Presbyterian Hospital Huntersville
Phone: 336-718-5269

Jeffery T. Lindsay, administrator for Huntersville Hospital, was previously executive director for Cardiovascular Services at Forsyth Medical Center, where he worked for nearly a decade. Prior to his tenure as executive director, Jeff was the service line director for cardiac, pulmonary, and gastroenterology services at FMC.

Before moving to North Carolina, Jeff was the director of Clinical Program Development at Shadyside Hospital in Pittsburgh, Pennsylvania, and the director of Specialty Services Management with L. Byrne Consulting, in Denver, Colorado.

Jeff graduated with a M.S.H.A. degree from the University of Alabama at Birmingham, and a B.S. degree from Auburn University in Alabama. He is a member of the American Heart Association and a student mentor at Kennedy Middle School.

His personal interests include boating, skiing, SCUBA, reading and travel.


Barbara Lipira, RN, MSN, OCN
Executive Director, Oncology Services
Phone: 704-384-5225

Barbara Lipira is executive director of oncology services for Presbyterian Healthcare. Previous positions at Presbyterian include manager of cancer research and clinical manager for Presbyterian Oncology Associates. She began her career in pediatrics, working in the intensive care nursery and a pediatric hematology program. Barbara is an Oncology Certified Nurse and with focus on the comprehensive care and management of persons with cancer.

Barbara earned a Bachelor of Science degree in nursing from the College of New Jersey, Ewing, N.J., and a Master of Science degree in nursing and chronic illness from UNC Charlotte.


Dinesh Pai
Vice President of Operations for Presbyterian Medical Group
Phone: 704-384-9104


Dinesh S. Pai is the Vice President of Operations for Presbyterian Medical Group. He joined Novant in 2000 and served as the Director of Business Services for the Novant Medical Group.

Dinesh holds a B.A. in Economics from Emory University and an MBA/MHA from Pfeiffer University. He is a certified member of Medical Group Management Association and a member of the Healthcare Financial Management Association.

In his spare time, he enjoys spending time with his wife and two children.


Richard Pearce 
Executive Director of the Presbyterian Cardiovascular Institute
Phone: 704-384-9617 


Richard has been the Executive Director of the Cardiovascular Institute since 2004.  Prior to joining Presbyterian, Richard served as Interim Consultant at the Claston-Hepburn Medical Center in Ogdensburg, NY, and Administrative Director of the Heart Institute and Critical Care Services at Osceola Regional Medical Center in Kissimmee, FL. Overall, Richard has more than 30 years of experience in healthcare as a staff nurse, nurse manager, director and administrator.

Richard earned his Bachelor of Science in Nursing and his Masters of Business Administration from the University of Southern Mississippi.

Richard serves on several committees, including Senior Nursing Leadership Council, Critical Care Committee, JCAHO Preparation Survey Team and Cardiovascular Services Business Plan Development. He is a member of the American College of Cardiovascular Administrators and the American Association of Critical-Care Nurses.


Janet Smith-Hill 
Vice President, Human Resources 
Phone: 704-384-9617 


Janet Smith-Hill is the vice president of Human Resources for the Southern Piedmont Region. She has served in various roles with Novant Health during her nine years, most recently as director of employee relations, equal employment opportunity and diversity. Janet has also worked as the director of accreditation and regulatory review, as well as the coordinator of nursing and clinical ancillary services standards within the organization.

Currently, 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 Charlotte Business Journal and has also 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 degree from UNC-Chapel Hill, and a Master of Science in Nursing from UNC-Greensboro. She was a member of a nursing honor society, Sigma Theta Tau.

In addition to her work with Novant Health, Janet volunteers with the Mid-Atlantic Christian Education Association and Mecklenburg Community Church.


Paula Vincent
Vice President Patient Care Services &  
Chief Nursing Officer Presbyterian Healthcare
Phone: 704-384-6371


Paula Vincent is the vice president of patient care services and chief nursing officer for Presbyterian Healthcare. Paula was formerly vice president/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's and Master's of Science degrees in nursing from UNC Charlotte.

She serves on the executive committee of the American Heart Association and chairperson 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 
Vice President, Medical Affairs for the Southern Piedmont Region
Phone: 704-384-5286


Dr. Zweng was born and raised in northern California. He attended the University of California at Davis, majoring in biology and history. He completed his medical school training at UCLA. 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 the Presbyterian Hospital.  Dr. Zweng’s special interests are in laparoscopic, gastrointestinal and bariatric surgery as well as endoscopy.His outside interests include bird watching, baseball and the opera.  His wife is Mary Zweng, and they are the parents of three children.