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Meet The Team

Ryan Heider, M.D., FACS

Medical Director/Surgeon
Ryan Heider, M.D., FACSUnder Dr. Heider’s leadership as Medical Director for The Center for Surgical Weight Loss at Lake Norman, recognitions include: the Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program; Designated Member, Blue Distinction Centers+ for Bariatric Surgery(r) Program (BDC+); and Designated Institute of Quality by Aetna Institutes of Quality(r) (IOQ) Bariatric Program. Dr. Heider received his medical degree from the University of North Carolina School of Medicine and completed his surgery training at University of North Carolina Hospitals in Chapel Hill. While at UNC, he participated in a variety of advanced minimally invasive and laparoscopic procedures, including laparoscopic gastric bypass, gastrectomy and esophageal surgery. Dr. Heider has also published numerous articles and completed extensive research in the area of advanced laparoscopic surgery. He was one of the first surgeons to perform single-incision, “scarless” bariatric surgery and is one of a limited number of surgeons in the nation with the advanced training to perform the 90-minute procedure.


Meet Dr. Heider

Tammy Moore

Practice Manager
Ryan Heider, M.D., FACSTammy comes to us from Mooresville Surgical Associates, where she has been employed since 2004 and served as Practice Manager for over five years. Tammy is a native of West Virginia where she attended Southern West Virginia Community College before relocating to North Carolina and graduating from ECPI College of Technology. She has worked in the medical field for over 15 years. She has been associated with Dr. Heider from the beginning of his bariatric program and is now located at the Center for Surgical Weight Loss full time. Not only is Tammy part of the team, she has also had bariatric surgery, which helps her to understand all aspects of the bariatric program. Tammy will be able to assist patients with their financial concerns along with providing empathetic support during their weight loss journey.

Amanda Downs, M.S., R.D., LDN

Nutritional Services
Ryan Heider, M.D., FACSAmanda is a Registered and Licenses Dietitian. She has a Master’s Degree in human nutrition and is a member of the American Dietetic Association and Charlotte Dietetic Association. She earned her Bachelor of Science degree in Physical Education, Health and Sports Studies from Miami University in Oxford, Ohio. Amanda completed a dietetic internship at University Hospitals in Cleveland, Ohio. Amanda works with patients before and after surgery to help develop a personalized eating plan.

Michelle Sierzega, RMA

Registered Medical Assistant
Ryan Heider, M.D., FACSMichelle attended ECPI Medical Career’s Institute in Concord, NC and graduated with honors. She then went on to pursue her Associates Degree in Applied Science, Medical Assisting and graduated Magna Cum Laude in August of 2009. Soon after graduating she earned her Registered Medical Assistant Certification through the American Medical Technologists. She started her career at Mid Carolina Cardiology for 1 year and then went on to pursue a career in bariatrics with Dr. Heider. Michelle assists patients through all phases of the weight loss journey. She is empathetic to the struggles patients face and is very supportive since she too has struggled with her weight.

Bobbie Brown

Insurance Coordinator
Ryan Heider, M.D., FACSBobbie attended Mitchell Community College in Statesville, North Carolina, where she studied to become a certified medical biller and coder as well as a certified nursing assistant. She worked in the Pre-Arrival unit of the Central Billing office for Health Management Associates hospitals before joining our bariatric team at The Center for Surgical Weight Loss. She assists patients through the process of obtaining insurance authorization for surgery as well as understanding the different steps of the program.

Patient results may vary. Consult your physician about the benefits and risks of any surgical procedure or treatment.

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