Christina Sanders, DO, MBA, FACS, FACOS, FASMBS | Medical Director | Bariatric & General Surgeon

Dr. Christina Sanders is the Medical Director of ECMC Synergy Bariatrics.  Dr. Sanders is a board certified general and bariatric surgeon who performs laparoscopic gastric bypass and sleeve gastrectomy. She also performs advanced laparoscopic and robotic procedures focusing on reflux, the GI tract and hernia repair. Dr. Sanders joined the UBMD surgery group in 2018 and is a Clinical Assistant Professor of Surgery at the University at Buffalo. She is working with Synergy Bariatrics at ECMC. 

Dr. Sanders received her medical degree from the Lake Erie College of Osteopathic Medicine in Erie, Pennsylvania. She completed an internship and residency at the University of Medicine and Dentistry of New Jersey. 

Dr. Sanders is a member of several professional societies and has presented at many national conferences. She also expects to complete her MBA, in Healthcare Management at Johns Hopkins University Carey Business School in 2019.

Misty A. Hofert, MS, PA-C |  Bariatric Physician Assistant

Misty Hofert is responsible for assisting our bariatric surgeons during procedures, as well as providing follow-up care after surgery.

Certified by the National Commission on Certification by Physician Assistants and a member of the American Society for Metabolic and Bariatric Surgery.

Prior to joining the Synergy Bariatrics team, she completed MS and BS degrees in physician assistant studies from DʼYouville College.

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Liam Knott, MD |  General & Bariatric Surgeon

Dr. Knott is a board certified general and bariatric surgeon who performs a range of advanced procedures for patients with weight-loss goals.  He also focuses on those patients suffering from conditions of the GI tract, gastroesophageal reflux disease (heartburn).  He has significant experience in all hernias of the abdominal wall, as well as advanced training in complex incisional hernias and abdominal wall reconstruction.  He specializes in minimally invasive and robotic surgery.  He has certifications in bariatric, endoscopic, and laparoscopic surgery. 

Dr. Knott worked with Surgical Associates of Western New York, PC, from 2018 to 2021.  Since fall of 2021, he has worked with Synergy Bariatrics at ECMC, as well as with the UBMD Surgery group in Williamsville for general surgery patients. 


Dr. Knott completed his undergraduate studies at Canisius College and earned his medical degree from the State University of New York at Buffalo.  Both his internship and residency were completed at Henry Ford Hospital in Detroit, MI.  His fellowship in Minimally Invasive, Robotic, and Bariatric Surgery was finished at Albany Medical Center.  He is a member of the American College of Surgeons, Western New York Chapter; SAGES; Erie County Medical Society; and the Buffalo Surgical Society. 

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Joseph Shelley, PharmD, BCPS  |  Clinical Pharmacist

Joseph Shelley is a Clinical Pharmacist working for ECMC Synergy Bariatrics. As a Clinical Pharmacist, Joseph is responsible for medication management for patients of the clinic, including managing dosages of medications and educating patients about their current and new medications.

Joseph has six years of experience as a pharmacist, all of which have been spent in facilities that have bariatric surgery programs. In the past, he has been an educator for patients undergoing bariatric surgery to ensure that they understand the medication changes necessary after surgery. Prior to joining Synergy Bariatrics, Joseph specialized for two years as an Operating Room pharmacist.

Joseph completed his Doctorate of Pharmacy (PharmD) at D’Youville University School of Pharmacy. He is also a Board-Certified Pharmacotherapy Specialist (BCPS), which was awarded to him by the Board of Pharmacy Specialties.

Jennifer Turesky, MS, RDN, CDN, CDE  |  Registered Dietitian/Nutritionist, Certified Diabetes Educator

Jennifer Turesky is a registered dietitian nutritionist, certified dietitian/nutritionist, and certified diabetes educator. As Registered Dietitian Nutritionist for Synergy Bariatrics, she supports bariatric patients with their nutrition and weight loss goals, both pre- and post-surgery. She also facilitates bariatric support groups.

With over 10 years of professional experience, Jennifer is an active member of the Academy of Nutrition and Dietetics, the New York State Dietetic Association, the Western New York Dietetic Association, The American Association of Diabetes Educators, and the Western New York Association of Diabetes Educators.

She holds a BS and MS in Dietetics from DʼYouville College.

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Wanda Winfield, LMSW  |  Licensed Social Worker

Wanda Winfield is a Licensed Social Worker working for ECMC Synergy Bariatrics.  As a Licensed Social Worker, Wanda is responsible for the pre-psychological evaluations, behavioral workshops, and counseling pre- and post-operatively for the patients of the clinic.  


Wanda has 25 years of experience as a Social Worker, with 5 of those years dedicated to counseling and facilitating groups.  


Wanda completed her Bachelor’s degree in Social Work at Daemen College and went on to earn her Master’s degree in Social Work from the University at Buffalo.