Sharn Barbarin, MHA, FACHE

Chief Executive Officer

Sharn Barbarin

LaSharndra “Sharn” Barbarin is Chief Executive Officer at Medical City Lewisville.

Sharn previously served as the Chief Operating Officer at Medical City Arlington from 2011 until her appointment as CEO at Lewisville in July 2015. Under her leadership, Medical City Arlington expanded services and achieved outstanding patient and physician satisfaction scores.

Sharn began her career with HCA as an administrative fellow at Medical City Las Colinas and was quickly promoted to Chief Operating Officer at the Medical City McKinney where she served nine years before her promotion to COO at Medical City Arlington.

Sharn is a graduate of Louisiana State University and holds a Master’s degree in Health Administration from Tulane University. She has been named an Outstanding Alumni by Tulane University’s School of Public Health & Tropical Medicine, honored as a Top 25 Women in Business by McKinney Living, and as a Young Healthcare Executive of the Year Nominee by the Dallas Fort Worth Hospital Council.

Renee Sturgeon, CPA

Chief Financial Officer

Renee Sturgeon

Renee Sturgeon is the Chief Financial Officer at Medical City Lewisville.

Renee previously served as the Vice President of Finance for Medical City Dallas and Medical City Children’s Hospital since 2016. As CFO of Medical City Lewisville, Renee has direct reporting responsibility for all financial departments including finance, patient access, health information management, case management, revenue integrity, IT&S, and supply chain. She also has oversight of the hospitalist program and inpatient rehab.

Renee began her career at HCA in 1995 as a financial analyst for the Ambulatory Surgery Group. She joined Medical City Plano in 2001 where she served in progressive leadership roles before advancing to Controller and Vice President of Finance roles at Medical City Dallas. As VP of Finance, she played a critical role in supporting the 797-bed flagship facility’s expense management, service line development and its unprecedented financial outperformance. She was instrumental in achieving capital approval for several development and expansion projects, including the Medical City Dallas Women’s Hospital. Throughout her career, Renee has displayed a record of proven results with financial, operational and strategic initiatives.

Renee earned a Bachelor of Science in Business Administration with a major in accounting from The University of Texas at Dallas and is a certified public accountant.

Megan Gallegos, DNP, BS, RN, NEA-BC

Chief Nursing Officer

Megan Gallegos

Megan Gallegos joined the leadership team at Medical City Lewisville as Chief Nursing Officer in March 2019.

Megan has more than ten years of nursing experience and was most recently Assistant Chief Nursing Officer at Medical City Fort Worth, where she oversaw inpatient nursing departments, wound care, transplant, education, and advanced practice providers, among other responsibilities.

Megan holds a Master of Science in Nursing and a Doctor of Nursing Practice from the University of South Alabama, along with two Bachelor of Science degrees in Nursing and Biology. She is a Nurse Executive, Advanced-Board Certified by the American Nurses Credentialing Center and an active member of the Texas Organization of Nurse Executives, American Organization of Nurse Executives, and the American College of Healthcare Executives. She is a 2018 graduate of the HCA Healthcare Executive Development Program and a 2016 HCA Innovator Award recipient for service excellence.

Sue Cobb

Vice President of Quality

Sue Cobb

Sue Cobb is the Vice President Quality at Medical City Lewisville. Sue has been with Medical City Lewisville for more than 28 years.

Sue received her Bachelor of Science in Nursing degree from Baylor University and her Master of Business Administration degree from Texas Woman's University. She is a member of the American Organization of Nurse Executives and holds a national certification in nursing administration.

Sue is married to Jerry, with whom she shares four sons, three daughters-in-law and six grandchildren. In addition to the family, Sue has two dogs and three cats. Sue’s passions include faith, family, friends, and nursing. She enjoys redecorating and music.

Dara Biegert

Vice President of Human Resources

Dara Biegert

Dara Biegert joined Medical City Lewisville in September of 2008 and serves as the Vice President of Human Resources. She oversees daily operations of the Human Resources and Employee Health departments. 

Dara received her bachelor’s degree in marketing from Texas A&M University and her Master of Business Administration degree from University of Phoenix. She has more than 25 years of hospital human resources management experience. Prior to coming to the Medical City Lewisville, Dara led the human resources department for UT Southwestern Medical Center in Dallas.

Gary Fullerton, MBA, BSN, RN, NEA-BC, CEN, LP

Assistant Vice President of Operations

Gary Fullerton

Gary Fullerton is the Assistant Vice President of Operations at Medical City Lewisville. He joined the hospital in January 2009 as the Assistant Vice President of Emergency Services and was promoted to the executive leadership team in 2015 as the Assistant Vice President of Operations.

Prior to joining Medical City Lewisville, Gary worked at Medical City Las Colinas as the Director of Emergency Services. Gary has more than 20 years of emergency services experience in progressive leadership positions. His clinical experience is in emergency services where he has been successful in achieving accreditations in Chest Pain, Stroke and Trauma, along with opening the first freestanding emergency department with an attached outpatient imaging center in North Texas: Medical City ER Flower Mound.

Gary received his Bachelor of Science in Nursing from the University of Texas Arlington and a master's degree in healthcare business administration from Texas Woman’s University. He is a licensed paramedic, a certified emergency nurse, and a certified nurse executive. He is a member of the American College of Healthcare Executives and the North Texas Organization of Nurse Executives. 

Gary enjoys spending time with his family and is an active member of his church.