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Meet the faculty of the Northside Hospital Primary Care Sports Medicine Fellowship.         

Dr. Mark Sakr is a board-certified physician in family medicine and sports medicine who serves as Program Director for the Northside Hospital Orthopedic Institute Division of Sports Medicine and the Northside Hospital Sports Medicine Fellowship. Dr. Sakr specializes in non-operative orthopedics, providing diagnosis and care for sports-related injuries including fractures, sprains and tendon injuries, as well as care for concussions, performance medicine and medical conditions in athletes. Dr. Sakr has extensive experience serving athletes of all ages and skill levels, including pediatric, high school, college and professional athletes. He currently serves as a team physician for Georgia State University, USA Men’s 15s National Rugby Team and Olympic 7s Men’s and Women’s Rugby Teams, as well as associate team physician for multiple high schools in the Greater Atlanta area. Dr. Sakr has clinical interests and experience teaching at a national and regional level in therapeutic orthobiologics, ultrasound-guided procedures and diagnostics. He also has clinical interest in therapeutic orthobiologics, ultrasound-guided procedures and diagnostics, concussion management, nutrition and general sports medicine.


Dr. Joseph Powers is a fellowship-trained sports medicine physician with board certifications in pediatrics and sports medicine, who serves as Assistant Program Director for the Northside Hospital Sports Medicine Fellowship. Dr. Powers specializes in non-operative orthopedics and sports medicine, and provides diagnosis and care for sports-related injuries including sprains, fractures and tendon injuries, as well as care for concussions and sports-related illness. He is extensively experienced in serving the Atlanta region, as well as in serving athletes of all ages and skill levels, including youth, student, recreational, adult and professional athletes. He currently serves as team physician for Georgia State University and Cambridge High School. He has served as team physician for multiple local high schools including Lakeview, West Hall and Chestatee, as well as an assistant primary care physician for the Atlanta Falcons. In addition to providing patient care, Dr. Powers has served as an invited lecturer for numerous presentations and symposiums, and was featured on ESPN’s “Outside the Lines”. He has clinical interests in concussion management, treatment of conditions in pediatric athletes and musculoskeletal ultrasound.


Dr. Vonda Wright is a board-certified orthopedic surgeon with subspecialty certification in sports medicine and serves as Chief of Northside Hospital Sports Medicine. Dr. Wright offers care for patients of all ages and skill levels, and is an internationally-recognized authority on active aging and mobility. She has expertise in the diagnosis and treatment for injuries of the hip, shoulder and knee, and uses the latest in injury prevention, conservative care and minimally-invasive surgery to return patients to activity. Prior to joining Northside Hospital, Dr. Wright practiced at the University of Pittsburgh Medical Center (UPMC), and served as the inaugural medical director of UPMC Lemieux Sports Complex, where she provided care for the University of Pittsburgh, Pittsburgh Ballet Theater, Penguins Elite Teams and World Rugby 7’s. In addition to providing patient care, Dr. Wright is an accomplished researcher and author, actively pursues research on hip preservation and musculoskeletal aging and has published numerous articles and abstracts, as well as several mainstream books.


Dr. Torrance Laury is a board-certified physician in family medicine with fellowship training in primary care sports medicine, who serves as core faculty for the Gwinnet Medical Center Sports Medicine Fellowship. His particular areas of interest are in injury prevention in youth sports, competitive gymnastics, arthritis and chronic injuries due to overuse. Dr. Laury believes it is important to treat the patient as a whole person and not just another injury. This involves caring for the entire individual, which includes addressing issues such as sleep, nutrition and emotional well-being. He considers these to be important factors in optimizing a patient’s physical function. Dr. Laury feels that it is imperative for the doctor-patient relationship to be a partnership, with patients having an active role in the medical decision making process. He works closely with the local high schools and gymnastics clubs in the surrounding region, helping athletes of all ages achieve their goals.


Dr. Daniel Charek is a fellowship-trained, licensed neuropsychologist, who specializes in the assessment and management of concussions in athletes and non-athletes, who serves as team neuropsychologist for Georgia State University. Dr. Charek has experience assessing and managing concussions in adult and pediatric patients, and in working with recreational, high school, college and professional athletes. His expertise is in performing comprehensive neuropsychological evaluations, including the assessment of cognitive skills such as memory, attention, reasoning and reaction time, in order to establish baselines for each individual, and in the case of a head injury, diagnose the extent of the injury and track treatment progress. He uses the most up-to-date tools and assessment procedures to identify specific areas of deficit secondary to concussion and customize concussion management plans based on the unique needs of each patient.  In addition to providing patient care Dr. Charek seeks to educate the community on concussion identification, as well as the importance of proper post-injury management.


Dr. Chris Potts is a board-certified orthopedic surgeon who specializes in the operative and non-operative treatment of sports injuries, arthritis and musculoskeletal disorders of the upper and lower extremities. He was trained under the world-renowned James Andrews, and as a part of his training, served as team physician for the University of Alabama Athletics, Birmingham Barons baseball team, WWE Professional Wrestling Association, Birmingham Ballet, as well as multiple professional and collegiate athletes from across the country. Dr. Potts has completed extensive research on the minimally-invasive treatment of non-arthritic hip conditions, authored numerous publications and has presented and lectured at educational conferences. He has extensive experience and training involving the shoulder, elbow, hip and knee, and has traveled internationally to study the nonsurgical treatment of orthopedic conditions using stem cell and platelet-rich plasma therapy.


Dr. Kellie K. Middleton is a dual board-eligible orthopedic surgeon who specializes in the operative and non-operative treatment of sports injuries, arthritis and musculoskeletal disorders. She is a Georgia native who grew up in Norcross. She was a three sport standout athlete (softball, basketball and track and field) at Marist High School and the oldest of four siblings who also graduated from Marist. She continued her education at the University of Notre Dame while playing NCAA division I softball and double majoring in biology and psychology. She graduated early from Notre Dame and earned her Masters of Public Health from the University of Georgia focusing on health policy in Management. While at UGA, Kellie continued her athletic career due to a medical redshirt and early graduation. She was a two-time NCAA All-American and was drafted second pick, first round into the National Professional Fastpitch league by the Akron Racers. Dr. Middleton has extensive experience in traumatology and adult reconstructive surgery. As a resident, Dr. Middleton covered Woodland Hills High School. Dr. Middleton completed fellowship at the Hospital for Special Surgery. As a fellow, she covered the NBA team the New York Knicks and the WNBA team the New York Liberty. 



Dr. Saadiq El-Amin is a core faculty member for the Gwinnett Medical Primary Care Sports Medicine Fellowship, and an orthopedic surgery specialist. He received his medical degree from Drexel University College of Medicine and completed his orthopedic residency at University of Virginia Health Science Center, where he was the chief orthopedic surgery resident. He competed his shoulder and sports medicine fellowship at Cornell Medical College.

He is the CEO and Owner of El-Amin Orthopedics’ & Sports Medicine Institute. He is also the Founder/Director of Regenerative Sports Medicine, Lab for Advanced Biomaterials and Tissue Engineering, and the Chief Scientific Officer/Owner of Biointegrate. 

Dr. El-Amin currently serves as head team physician for both North Gwinnett High School and Lanier High School.  He provides sports medicine care to numerous other area high schools, colleges, and professional athletes.


Dr. David Schwartz specializes in assessment and treatment of concussion and traumatic brain injury, neurorehabilitation and intervention in learning and educational issues.

He holds a joint PhD in behavioral medicine and clinical psychology, with a specialization in neuropsychology. He consults nationally and in Canada with school districts, state departments of education, provincial school boards and clinical groups.

Dr. Schwartz is actively sought out to present on a variety of topics that include assessment, intervention and strategies for improving student and adult success. He has extensive experience in the area of assessment and treatment, and serves children, adolescents and adults. Dr. Schwartz utilizes a consensus building approach when working with individuals, families, professionals and community resources. He is known for his practical recommendations and his easy accessibility.


Dr. Adam Shunk is a licensed psychologist who specializes in developmental neuropsychology, sports psychology and concussion management.

Prior to joining the Concussion Institute at GMC-Duluth, Dr. Shunk practiced at Indianapolis’ prestigious St. Vincent Sport Performance Center, where he provided clinical neuropsychology and sports psychology services. He was also the consulting clinical neuropsychologist for the St. Vincent Sport Medicine Concussion Clinic and Indiana’s Athlete Concussion Alliance. He is a Credentialed ImPACT Consultant and is a member of the Sports Neuropsychology Society.

In addition to his role as a neuropsychologist, Dr. Shunk is also trained as a sports psychologist. He has specialized training in clinical sport psychology and performance psychology for amateur, collegiate, Olympic and professional athletes.

Additional Faculty

Kristin Crea, ATC, LAT, ITAT – Director, Sports Medicine and Concussion Instutite of Northside Hospital Duluth  

Ashley Buechner, ATC, LAT, ITAT – Supervisor, Sports Medicine Program of Northside Hospital Duluth

Lance Dasher, MD – Radiologist

Candice McGraw – Pharmacist

Reva Grant – Pharmacist

Kristie Delgado – Exercise Physiologist

Cris Hartley – Registered Dietian

Lois Vergis – Registered Dietian

Martina Tracey – Physical Therapist

Becky Thompson – Physical Therapist

Phillip Jones – Head Football Coach Brookwood High School