Timothy Koch is a Gastroenterologist in Washington, Washington, D.c.. Dr. Koch is rated as a Distinguished provider by MediFind in Sleeve Gastrectomy. His top areas of expertise are Obesity, Malnutrition, Swallowing Difficulty, Sleeve Gastrectomy, and Gastric Bypass.

Dr. Drew Jung is an assistant professor of surgery in the Johns Hopkins Department of Surgery. He is an expert in minimally invasive surgery whose clinical focus is in laparoscopic and robotic surgeries. He has specialties in open and laparoscopic hernias, bariatrics, foregut, and quality improvement as it pertains to quality of care. Dr. Jung is focused on being able to get patients back on their feet sooner and have the potential to get back to work sooner than before. He is open to accepting all new patients to provide his expertise. Videos Dr. Andrew Jung M.D Bio Video. Dr. Jung is rated as an Advanced provider by MediFind in Sleeve Gastrectomy. His top areas of expertise are Hernia, Hemolytic Transfusion Reaction, Low Blood Pressure, Sleeve Gastrectomy, and Gastrectomy.

Ivanesa Pardo-Lameda is a General Surgeon in Washington, Washington, D.c.. Dr. Pardo-Lameda is rated as an Advanced provider by MediFind in Sleeve Gastrectomy. Her top areas of expertise are Obesity, Hernia, Obesity in Children, Sleeve Gastrectomy, and Gastrectomy. Dr. Pardo-Lameda is currently accepting new patients.

Barry Greene is a General Surgeon in Washington, Washington, D.c.. Dr. Greene is rated as an Advanced provider by MediFind in Sleeve Gastrectomy. His top areas of expertise are Short Bowel Syndrome, Obesity, Hiatal Hernia, Sleeve Gastrectomy, and Endoscopy. Dr. Greene is currently accepting new patients.

Khashayar Vaziri is a General Surgeon in Washington, Washington, D.c.. Dr. Vaziri is rated as an Advanced provider by MediFind in Sleeve Gastrectomy. His top areas of expertise are Hernia, Gallbladder Disease, Umbilical Hernia, Endoscopy, and Gastrectomy.

Dr. Brett Parker is a general surgeon and fellowship-trained minimally invasive foregut and bariatric surgeon. He is an Assistant Professor of Surgery at Johns Hopkins and also the Program Director for the Johns Hopkins Advanced GI and Minimally Invasive Surgery Fellowship Program. Dr. Parker is an expert in minimally invasive surgical techniques including advanced laparoscopy and robotic surgery, as well as therapeutic flexible endoscopy. He is interested in promoting the evolving indications for surgical repair of hiatal hernias, as well as adjunct procedures surgeons can use to reduce recurrence rates. He offers a wide range of interventions for GERD, including innovative endoscopic therapies, and promotes early surgical referral to discuss and tailor therapy to individual patient circumstances. Dr. Parker also has a robust abdominal wall reconstruction and weight loss surgery practice. He is widely published on the surgical outcomes of foregut surgery, emerging technologies, and innovation, as well as surgical simulation and skills transfer. Dr. Parker has consistently been selected as a Washingtonian Magazine Top Doctor in 2023, 2024, and 2025. As a member of the Johns Hopkins Division of Minimally Invasive Surgery in the Greater Washington Area, Dr. Parker is dedicated to the best, individualized, patient outcomes. Learn more about Dr. Parker and his partners within the Johns Hopkins Division of Minimally Invasive Surgery, the Johns Hopkins Heartburn Center and the Johns Hopkins Motility and Neurogastroenterology Center. Dr. Parker is rated as an Experienced provider by MediFind in Sleeve Gastrectomy. His top areas of expertise are Hiatal Hernia, Hernia, Congenital Diaphragmatic Hernia, Endoscopy, and Gallbladder Removal.

Paul Lin is a General Surgeon in Washington, Washington, D.c.. Dr. Lin is rated as an Experienced provider by MediFind in Sleeve Gastrectomy. His top areas of expertise are Pancreatic Cancer, Hernia, Gallbladder Disease, Pancreatectomy, and Gastrectomy.

Marc Levine is a Psychiatrist in Washington, Washington, D.c.. Dr. Levine is rated as an Experienced provider by MediFind in Sleeve Gastrectomy. His top areas of expertise are Sleeve Gastrectomy and Endoscopy.

Juliet Lee is a General Surgeon in Washington, Washington, D.c.. Dr. Lee is rated as an Experienced provider by MediFind in Sleeve Gastrectomy. Her top areas of expertise are Femoral Hernia, Hernia, Juvenile Angiofibroma, Hernia Surgery, and Sleeve Gastrectomy.

Evan Nadler is a General Surgeon and a Pediatrics provider in Washington, Washington, D.c.. Dr. Nadler is rated as an Experienced provider by MediFind in Sleeve Gastrectomy. His top areas of expertise are Type A Insulin Resistance Syndrome, Acanthosis Nigricans, Retroperitoneal Inflammation, Sleeve Gastrectomy, and Gastrectomy. Dr. Nadler is currently accepting new patients.

Dr. Katherine Lamond is the Medical Director of the Johns Hopkins Center for Bariatrics Surgery at Sibley Memorial Hospital and Assistant Professor of Surgery for Johns Hopkins School of Medicine. She specializes in laparoscopic bariatric surgery, and performs the Roux-en-Y Gastric Bypass, Sleeve Gastrectomy and Adjustable Gastric Banding at Sibley. She is also a surgeon with Johns Hopkins Surgery at Sibley, where she practices general surgery and advanced laparoscopic surgery. Dr. Lamond grew up in Maryland and attended Dartmouth College for her undergraduate education, before moving back to the area to attend Georgetown University School of Medicine. Her internship and residency in General Surgery were completed at the University of Virginia in Charlottesville. She then completed a fellowship at Johns Hopkins Hospital in Minimally Invasive and Bariatric Surgery. More recently, Dr. Lamond served as Assistant Professor of Surgery at the University of Maryland School of Medicine from 2012-2015, prior to transitioning her practice to Sibley Memorial Hospital. She is a Fellow of the American College of Surgeons and is active in both the Society of American Gastrointestinal and Endoscopic Surgeons and the American Society for Metabolic and Bariatric Surgery. Videos Meet Katherine Lamond, M.D., Minimally Invasive Surgeon Surgical Weight Loss Options 101 GERD and Bariatric Surgery FAQ. Dr. Lamond is rated as an Experienced provider by MediFind in Sleeve Gastrectomy. Her top areas of expertise are Hernia, Ogilvie Syndrome, Obesity in Children, Sleeve Gastrectomy, and Gastrectomy.

Yewande Alimi is a General Surgeon in Washington, Washington, D.c.. Dr. Alimi is rated as an Experienced provider by MediFind in Sleeve Gastrectomy. Her top areas of expertise are Hernia, Obesity, Umbilical Hernia, Gastrectomy, and Endoscopy.

Daniel Tran is a Plastic Surgeon and a General Surgeon in Washington, Washington, D.c.. Dr. Tran is rated as an Experienced provider by MediFind in Sleeve Gastrectomy. His top areas of expertise are Delirium, Necrotizing Fasciitis, Ogilvie Syndrome, Gastrostomy, and Hernia Surgery.