Meet Our Team
Mark P. Callery, MD, FACS
Chief, Division of General Surgery
Dr. Callery is Professor of Surgery at Harvard Medical School and Chief of General Surgery at BIDMC. Dr. Callery completed his medical degree at Albany Medical College of Albany, NY. He completed a general surgery residency and a research fellowship at Barnes Hospital/Washington University School of Medicine in St. Louis, and a fellowship in Hepato-Pancreato-Biliary Surgery at the Royal Infirmary in Edinburgh, Scotland. Board certified in general surgery, his major clinical interests include pancreatic surgery, Whipple procedure for pancreatic cancer, hepatobiliary surgery, advanced laparoscopic and robotic surgery, complex gastrointestinal surgery, and hernia repair.
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Christopher G. Boyd, MD, FACS
Dr. Boyd is Assistant Professor of Surgery at Harvard Medical School and Chief of Surgery at BID-Needham. He also serves as Assistant Program Director of the General Surgery Residency Program. He completed his medical degree at University of Arizona College of Medicine, Tucson, and completed his internship and residency in general surgery. Board certified in general surgery, his major clinical interests are laparoscopic and open abdominal surgery and complex hernias.
Morgan Bresnick, MD
Dr. Bresnick is an Instructor in Surgery at Harvard Medical School and provides care for patients at BIDMC and BID-Milton. Board certified in general surgery, Dr. Bresnick graduated from Tufts University School of Medicine in Boston. She completed her general surgery residency at Boston Medical Center, and a fellowship in bariatric and minimally invasive surgery at Thomas Jefferson University Hospital in Philadelphia, PA. Her clinical interest include minimally invasive surgery; bariatric surgery; anti-reflux surgery; open and laparoscopic management of the intestines, stomach, gallbladder, and spleen; and open and laparoscopic surgery for inguinal and ventral hernias.
Jonathan Critchlow, MD, FACS
Dr. Critchlow is Associate Professor of Surgery at Harvard Medical School and Associate Program Director of the General Surgery Residency Program at BIDMC. He completed his medical degree at University of California at San Diego School of Medicine, La Jolla, CA. He completed his internship and residency in general surgery at Beth Israel Deaconess Medical Center. Board certified in both surgery and surgical critical care, his clinical interests are general surgery, minimally invasive surgery, gastrointestinal surgery, advanced laparoscopic surgery including esophagus, stomach and colon, Nissen fundoplication, critical care, esophageal surgery, gastrointestinal oncology, venous access.
Daniel B. Jones, MD, MS, FACS
Dr. Jones is Professor of Surgery at Harvard Medical School, Chief of Minimally Invasive Surgery and Bariatric Surgery, and Vice Chair of Technology and Innovation in the Department of Surgery at BIDMC. Dr. Jones received his medical degree from Weill Medical College of Cornell University, New York. He completed his residency in General Surgery at Barnes-Jewish Hospital in St. Louis, and a fellowship in Minimally Invasive Surgery at Barnes Hospital/Washington University School of Medicine in St. Louis. His major clinical interests include minimally invasive surgery, advanced laparoscopic treatment of obesity, laparoscopic surgery for hiatal, inguinal and ventral hernia, achalasia, gallstones, reflux and heartburn.
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Tara S. Kent, MD, MS
Dr. Kent is Associate Professor of Surgery at Harvard Medical School, Vice Chair of Education, and Program Director of the BIDMC General Surgery Residency Program. She earned her medical degree from Weill Medical College of Cornell University, New York. She completed her residency in General Surgery at Albert Einstein College of Medicine Montefiore Medical Center, and a research fellowship in Surgical Oncology at Albert Einstein College of Medicine. Her major clinical interests are pancreatic, biliary, and gastrointestinal disorders surgery.
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Peter M. Mowschenson, MD
Dr. Mowschenson is Assistant Clinical Professor of Surgery at Harvard Medical School and on staff in the Division of General Surgery at BIDMC. He completed his medical degree at University of London Faculty of Medicine, United Kingdom. He completed his internship at Guy’s Hospital in the United Kingdom, a residency in surgery at BIDMC, and a fellowship in Endocrinology, Diabetes, and Metabolism at Harvard School of Public Health. Board certified in general surgery, his clinical interests include endocrine surgery, colorectal surgery, gastrointestinal surgery, thyroid and parathyroid surgery and surgery for inflammatory bowel disease.
Alia Qureshi, MD, MSc
Dr. Qureshi is an Instructor in Surgery at Harvard Medical School. She received her medical degree from the University of Toronto Medical School, and completed her residency at the University of Toronto. Dr. Qureshi did her fellowship in minimally invasive surgery at The Swedish Cancer Center in Seattle, Washington. Her clinical interests are minimally invasive surgery, foregut surgery, anti-reflux procedures, and gastric surgery. Her research interests are resident education and gastric cancer. Dr. Qureshi sees patients primarily at BID-Needham.
Benjamin E. Schneider, MD, FACS
Dr. Schneider is Assistant Professor of Surgery at Harvard Medical School and Bariatric Surgeon in Minimally Invasive Surgical Services at BIDMC, Beth Israel Deaconess Hospital-Milton, and Beth Israel Deaconess HealthCare-Chelsea. He received his medical degree from University of Colorado School of Medicine and completed a general surgery residency at the University of Iowa Hospitals and Clinics in Iowa City, Iowa, and a fellowship in Advanced Laparoscopy at BIDMC. His major clinical interests are bariatric and metabolic, robotic and advanced minimally invasive surgery.
Madhu Siddeswarappa, MD, MRCS
Dr. Siddeswarappa is on staff in the Division of General Surgery at BIDMC, and an Instructor in Surgery, Part-time, at Harvard Medical School. He sees patients at BID–Plymouth. He earned his medical degree from the Karnataka Institute of Medical Sciences, in Hubli, India. He completed his residence in surgery at Mercy Catholic Medical Center, in Philadelphia, Pennsylvania. Dr. Siddeswarappa completed a fellowship in Minimally Invasive and Bariatric Surgery at Duke University Hospital, in Durham, North Carolina.
Dr. Siddeswarappa’s clinical interests include minimally invasive/ laparoscopic surgery, hernia, gall bladder, stomach surgery and gastrointestinal surgery, hiatal hernia, diverticulitis, colon cancer, and weight loss surgery. His research interests include incisionless magnetic liver retraction, single port surgery, and percutaneous scarless surgery.
Miguel Alonso Alonso, MD
Dr. Alonso Alonso is Director of the Laboratory of Bariatric and Nutritional Neuroscience in the Center for the Study of Nutrition Medicine in the Department of Surgery. He received his medical degree, completed a residency in Neurology, and earned two postgraduate degrees in neuroscience in Spain and the United Kingdom before completing a Neurology research fellowship at BIDMC. Dr. Alonso Alonso is also a graduate of the Clinical Investigator Training Program at the Harvard-MIT Division of Health Sciences and Technology. Dr. Alonso Alonso’s research focuses on the neurocognitive basis of human eating behavior and obesity, using an integrative approach that bridges neurology, neuropsychology, and cognitive neuroscience. He is engaged in the development of innovative methodologies and interventions, particularly neurotechnologies, for the treatment of obesity. Dr. Alonso Alonso is currently leading two clinical trials related to the use of transcranial direct current stimulation (tDCS) to enhance eating control in obese individuals.