Our Surgeons


Caty, Michael

Chief, Pediatric Surgery

Biography

Michael G. Caty, MD, MMM, the new chief of pediatric surgery for the Department of Surgery and Yale Medical Group, and pediatric surgeon-in-chief of Yale-New Haven Children’s Hospital (YNHCH), sees exciting potential to take pediatric surgery here to a new level.

Dr. Caty obtained his medical degree at the University of Massachusetts. He completed his general surgery training at the University of Michigan, where he served as administrative chief resident and...

Michael G. Caty, MD, MMM, the new chief of pediatric surgery for the Department of Surgery and Yale Medical Group, and pediatric surgeon-in-chief of Yale-New Haven Children’s Hospital (YNHCH), sees exciting potential to take pediatric surgery here to a new level.

Dr. Caty obtained his medical degree at the University of Massachusetts. He completed his general surgery training at the University of Michigan, where he served as administrative chief resident and pursued a research fellowship investigating intestinal injury during ischemia and reperfusion. He finished his pediatric surgery residency at Children’s Hospital of Boston and Harvard Medical School, where he served as chief resident. He recently completed a Masters degree in Medical Management from the Heinz School of Public Policy at Carnegie Mellon University.In Buffalo, where he worked since 1993, Dr. Caty was surgeon-in-chief and director of pediatric surgical services. He was considered the driving physician leader for the planning and development of moving both the inpatient and outpatient services to the Buffalo Niagara Medical Campus.

He was a professor of surgery and pediatrics at the University of Buffalo School of Medicine and Biomedical Sciences. Board-certified in pediatric and general surgery, his clinical interests include neonatal surgery, thoracic surgery, intestinal motility disorders, pediatric surgical oncology, pediatric laparoscopy and minimally invasive thoracic surgery.

Dr. Caty is a member of the American College of Surgeons, American Pediatric Surgical Association, American Academy of Pediatrics, Association for Academic Surgery, Society of University Surgeons and many others. This month he is being inducted into the American Surgical Association, the oldest and most exclusive surgical society in the United States.

Meet Section Chief, Dr. Michael Caty.

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Christison-Lagay, Emily

Biography

Emily Christison-Lagay, MD is a pediatric surgeon specializing in patients with cancer. She is board-certified in surgery and pediatric surgery, and has dedicated interest in pediatric solid tumors including thoracic, liver, and renal tumors, as well as neuroblastoma, childhood sarcomas, and pediatric diseases of the thyroid. She also enjoys general pediatric surgery including neonatal care.She completed her medical degree at Harvard Medical School and her general surgical residency at the...

Emily Christison-Lagay, MD is a pediatric surgeon specializing in patients with cancer. She is board-certified in surgery and pediatric surgery, and has dedicated interest in pediatric solid tumors including thoracic, liver, and renal tumors, as well as neuroblastoma, childhood sarcomas, and pediatric diseases of the thyroid. She also enjoys general pediatric surgery including neonatal care.She completed her medical degree at Harvard Medical School and her general surgical residency at the Massachusetts General Hospital, with research in tumor angiogenesis at Boston Children's Hospital. From there, she completed a pediatric surgical fellowship at the Hospital for Sick Children in Toronto, followed by a "super"-fellowship in pediatric surgical oncology at Memorial Sloan Kettering Cancer Center.

Meet Dr. Christison-Lagay.

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Cowles, Robert A

Biography

Robert A. Cowles, MD is an Associate Professor of Surgery at Yale School of Medicine. Dr. Cowles obtained his undergraduate education at the University of Pennsylvania and his medical degree at Temple University. He completed a residency in general surgery at the University of Michigan, in Ann Arbor, and spent two additional years pursuing laboratory research which was supported by a training grant from the NIH and by a research grant from the American College of Surgeons. Dr. Cowles then...

Robert A. Cowles, MD is an Associate Professor of Surgery at Yale School of Medicine. Dr. Cowles obtained his undergraduate education at the University of Pennsylvania and his medical degree at Temple University. He completed a residency in general surgery at the University of Michigan, in Ann Arbor, and spent two additional years pursuing laboratory research which was supported by a training grant from the NIH and by a research grant from the American College of Surgeons. Dr. Cowles then obtained his pediatric surgery training at the Morgan Stanley Children’s Hospital at Columbia University in New York City.

Dr. Cowles practices the full range of pediatric surgery with specific expertise and interest in the care of children with diseases of the gastrointestinal tract including the esophagus, stomach, small intestine, colon, liver and biliary tree. He currently co-manages patients with short gut syndrome and intestinal failure as part of a multidisciplinary team.

He has been a Program Director of Pediatric Surgery Fellowships both in New York and now at Yale University with an interest in competency in surgical education.

Dr. Cowles directs a research laboratory focused on the neural control of intestinal adaptation and neural processes involved in recovery from intestinal injury.

Meet Dr. Robert Cowles.

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Dinauer, Catherine A

Biography

Catherine Dinauer, MD is a Pediatric Endocrinologist and Clinician at the Yale Pediatric Thyroid Center, within the Division of Pediatric Surgery. She earned her undergraduate degree at Dartmouth College and her medical degree at the University of Vermont College of Medicine. Dr. Dinauer completed Pediatric residency at Walter Reed Army Medical Center in Washington, D.C. and Pediatric Endocrinology fellowship through the National Capitol Area Pediatric Consortium at the Uniformed Services...

Catherine Dinauer, MD is a Pediatric Endocrinologist and Clinician at the Yale Pediatric Thyroid Center, within the Division of Pediatric Surgery. She earned her undergraduate degree at Dartmouth College and her medical degree at the University of Vermont College of Medicine. Dr. Dinauer completed Pediatric residency at Walter Reed Army Medical Center in Washington, D.C. and Pediatric Endocrinology fellowship through the National Capitol Area Pediatric Consortium at the Uniformed Services University of the Health Sciences (USUHS) in Bethesda, Maryland. Following her training, Dr. Dinauer served as an Attending in Pediatric Endocrinology at Walter Reed, worked in research administration as Assistant Chief of the Department of Clinical Investigation, and was an Assistant Professor of Pediatrics at USUHS. Since 2006, her clinical practice has focused on pediatric thyroid disorders. She has a particular interest in childhood thyroid cancer and is a member of the American Thyroid Association committee creating guidelines for the management of thyroid cancer in children.

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Ozgediz, Doruk

Biography

Doruk Ozgediz, MD, MSc is board certified in general surgery and pediatric surgery and earned his medical degree from the University of California at San Francisco. He also earned his M.Sc. from the London School of Hygiene and Tropical Medicine in Public Health in Developing Countries. He completed his general surgery training at UCSF and pediatric surgery fellowship in Toronto. Dr. Ozgediz’s research interests include global health, global surgery, health disparities, access to care,...

Doruk Ozgediz, MD, MSc is board certified in general surgery and pediatric surgery and earned his medical degree from the University of California at San Francisco. He also earned his M.Sc. from the London School of Hygiene and Tropical Medicine in Public Health in Developing Countries. He completed his general surgery training at UCSF and pediatric surgery fellowship in Toronto. Dr. Ozgediz’s research interests include global health, global surgery, health disparities, access to care, burden of surgical disease, partnerships and collaboration, Uganda, capacity-building, and pediatric surgery.

Meet Dr. Doruk Ozgediz

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Stitelman, David H

Biography

David Stitelman, M.D. is board certified in general surgery and earned his medical degree from the University of Pennsylvania School of Medicine. He completed his general surgery residency at the Hospital of the University of Pennsylvania and a fellowship in pediatric surgery at the Children’s Hospital of Philadelphia. Dr. Stitelman’s clinical interests include minimally invasive surgery, pediatric surgical oncology and the correction of congenital anomalies.

David Stitelman, M.D. is board certified in general surgery and earned his medical degree from the University of Pennsylvania School of Medicine. He completed his general surgery residency at the Hospital of the University of Pennsylvania and a fellowship in pediatric surgery at the Children’s Hospital of Philadelphia. Dr. Stitelman’s clinical interests include minimally invasive surgery, pediatric surgical oncology and the correction of congenital anomalies.

Meet Dr. David Stitelman.

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