Larry Siu is a Gastroenterologist in Morristown, New Jersey. Dr. Siu is highly rated in 24 conditions, according to our data. His top areas of expertise are Pancreatic Cancer, Choledocholithiasis, Familial Pancreatic Cancer, Endoscopy, and Gastrectomy. Dr. Siu is currently accepting new patients.

Joseph Zangara is a Gastroenterologist in Wayne, New Jersey. Dr. Zangara is highly rated in 15 conditions, according to our data. His top areas of expertise are Necrotizing Enterocolitis, Eosinophilic Colitis, Gastric Dysmotility, Gastrectomy, and Colonoscopy. Dr. Zangara is currently accepting new patients.

Ravishankar Ramamoorthy is a Gastroenterologist in Wayne, New Jersey. Dr. Ramamoorthy is highly rated in 12 conditions, according to our data. His top areas of expertise are Necrotizing Enterocolitis, Familial Pancreatic Cancer, Pancreatic Cancer, Endoscopy, and Gastrectomy. Dr. Ramamoorthy is currently accepting new patients.

Kamlesh Shah, MD, FACG, FASGE, is a fellowship-trained gastroenterologist with the Atlantic Digestive Health Institute, part of Atlantic Medical Group (AMG). Board-certified in gastroenterology by the American Board of Internal Medicine, he has more than 21 years of experience in gastroenterology. He is passionate about delivering high-quality patient care and driving continuous improvement for health care delivery. Dr. Shah’s expertise includes diagnostic and therapeutic endoscopy including ERCP.After earning his medical degree at University of Medicine and Dentistry of NJ/Robert Wood Johnson Medical School, Piscataway, Dr. Shah performed his internal medicine residency at Thomas Jefferson University Hospital, Philadelphia, PA. He then completed gastroenterology fellowship training at Graduate Hospital/Drexel University College of Medicine, Philadelphia, PA, followed by an advanced endoscopy fellowship at Duke University Medical Center and Durham VA Medical Center, Durham, NC. Prior to joining AMG, he held positions as a gastroenterologist in Pennsylvania and South Jersey.Dr. Shah is a Fellow of both the American College of Gastroenterology (FACG) and the American Society for Gastrointestinal Endoscopy (FASGE). He is a participating provider of the Atlantic Accountable Care Organization. Dr. Shah is highly rated in 11 conditions, according to our data. His top areas of expertise are Diverticular Disease, Indigestion, Gastric Dysmotility, Gastrectomy, and Colonoscopy.

Jonathon Stillman is a Gastroenterologist in Wayne, New Jersey. Dr. Stillman is highly rated in 7 conditions, according to our data. His top areas of expertise are Diverticular Disease, Intestinal Cancer, Diarrhea, Gastrectomy, and Endoscopy. Dr. Stillman is currently accepting new patients.

Robert Schuman is a Gastroenterologist in Morristown, New Jersey. Dr. Schuman is highly rated in 6 conditions, according to our data. His top areas of expertise are Non-Alcoholic Fatty Liver Disease, Gastric Dysmotility, Irritable Bowel Syndrome (IBS), Exocrine Pancreatic Insufficiency, and Gastrectomy. Dr. Schuman is currently accepting new patients.

Steven David is a Gastroenterologist in Wayne, New Jersey. Dr. David is highly rated in 5 conditions, according to our data. His top areas of expertise are Choledocholithiasis, Ascites, Heartburn, Gastrectomy, and Colonoscopy. Dr. David is currently accepting new patients.

Bonnie Cheng is a Gastroenterologist in Wayne, New Jersey. Dr. Cheng is highly rated in 13 conditions, according to our data. Her top areas of expertise are Diverticular Disease, Hepatitis, Gastrointestinal Bleeding, Gastrectomy, and Endoscopy. Dr. Cheng is currently accepting new patients.

Michael Mainero is a Gastroenterologist in Woodland Park, New Jersey. Dr. Mainero is highly rated in 6 conditions, according to our data. His top areas of expertise are Diverticular Disease, Gastroesophageal Reflux Disease (GERD), Lactose Intolerance, Endoscopy, and Gastrostomy.

John Morton is a Gastroenterologist in Montville, New Jersey. Dr. Morton is highly rated in 4 conditions, according to our data. His top areas of expertise are Heartburn, Painful Swallowing, Swallowing Difficulty, Gastrectomy, and Colonoscopy. Dr. Morton is currently accepting new patients.

Dr. Matthew Grossman is an interventional endoscopist and gastroenterologist with the Atlantic Digestive Health Institute at Morristown, specializing in premalignant conditions and malignancies involving the gastrointestinal (GI) system. Board-certified by the American Board of Internal Medicine in gastroenterology, and fellowship-trained in gastroenterology and advanced therapeutic endoscopy, Dr. Grossman cares for patients and is called upon for the most challenging endoscopic procedures.Dr. Grossman has performed thousands of advanced procedures providing the highest quality of care using state-of-the-art technology to diagnose and treat patients. His clinical interests are in therapeutic endoscopy: endoscopic retrograde cholangiopancreatography (ERCP), endoscopic ultrasound, submucosal dissection and resection, and endoscopic surgical techniques including endoscopic bariatric surgery, esophageal and gastric POEM, Zenker’s diverticulectomy, transoral incisionless fundoplication, enteric stenting, double balloon enteroscopy, Barrett’s esophagus, pancreatic cyst management and endoscopic suturing.After earning his medical degree from Rutgers/UMDNJ Robert Wood Johnson Medical School, New Brunswick, NJ, Dr. Grossman completed his residency in internal medicine at Columbia University Medical Center, NYC. He then completed a fellowship in gastroenterology at New York University Medical Center, NYC, and went on for a second fellowship in advanced therapeutic endoscopy at Lenox Hill Hospital, NYC.Active in clinic trials of novel endoscopic devices as well as research on pancreatic cancer genomics, Dr. Grossman has written numerous publications in peer-reviewed journals and presented at many national scientific meetings. He has given frequent talks throughout the GI community about the latest innovations in endoscopy.Dr. Grossman is a Fellow of the New York Society for Gastrointestinal Endoscopy. He maintains active membership in the American Society for Gastrointestinal Endoscopy, the American College of Gastroenterology, and the American Gastroenterology Association. He is fluent in Spanish. Dr. Grossman is part of the Atlantic Medical Group and a participating provider of the Atlantic Accountable Care Organization. Dr. Grossman is highly rated in 18 conditions, according to our data. His top areas of expertise are Achalasia, Angiodysplasia of the Colon, Gallstones, Endoscopy, and Pancreatectomy.

David Rahni is a Gastroenterologist in West Orange, New Jersey. Dr. Rahni is highly rated in 15 conditions, according to our data. His top areas of expertise are Acute Pancreatitis, Pancreatic Cancer, Familial Pancreatic Cancer, Endoscopy, and Colonoscopy. Dr. Rahni is currently accepting new patients.

Robert Bleicher is a Gastroenterologist in Wayne, New Jersey. Dr. Bleicher is highly rated in 12 conditions, according to our data. His top areas of expertise are VIPoma, Gastric Dysmotility, Eosinophilic Colitis, Gastrectomy, and Endoscopy. Dr. Bleicher is currently accepting new patients.

Oren Bernheim is a Gastroenterologist in Wayne, New Jersey. Dr. Bernheim is highly rated in 6 conditions, according to our data. His top areas of expertise are Gastrointestinal Bleeding, Chronic Erosive Gastritis, Irritable Bowel Syndrome (IBS), Endoscopy, and Colonoscopy. Dr. Bernheim is currently accepting new patients.

Dr. Robert Ruffini is a fellowship-trained gastroenterologist with Atlantic Medical Group, providing patients with expert care for a wide range of digestive system disorders. Prior to joining Atlantic Health System, Dr. Ruffini was a partner with The Medical Group PA in West Orange since 1992. Board-certified in internal medicine and gastroenterology, Dr. Ruffini is an expert in the diagnosis and management of conditions that include the gallbladder, stomach, intestines and pancreas. He attended Thomas Jefferson Medical College for his medical degree and remained in Philadelphia for his residency at Lankenau Hospital, followed by a two-year fellowship at Presbyterian-University of Pennsylvania Medical Center. A leader in his field, Dr. Ruffini previously served in several roles at Saint Barnabas Medical Center, including being a member of the executive board, a gastroenterology teaching attending for medical students and residents, a member of the institutional review board, and one of the hospital’s former chiefs of Gastroenterology Services. Dr. Ruffini is a member of the Atlantic Accountable Care Organization. He also maintains membership in the American College of Gastroenterology, the American College of Physicians, the American Gastroenterological Association, and the American Medical Association. Dr. Ruffini is highly rated in 2 conditions, according to our data. His top areas of expertise are Diverticular Disease, Gastrointestinal Bleeding, Gastritis, Gastrectomy, and Gastrostomy.

Dr. Andrew Stefaniwsky is a fellowship-trained gastroenterologist with Atlantic Medical Group, diagnosing and treating a range of digestive disorders from irritable bowel syndrome to liver conditions. Dr. Stefaniwsky joins Atlantic Medical Group from private practice, The Medical Group PA, where he was a founding partner from the time it was established in 1982. After receiving his medical degree from Robert Wood Johnson Medical School, Dr. Stefaniwsky remained there to pursue his residency, served as chief resident. He continued for fellowship training at UMDNJ-New Jersey Medical School, where he also served as a clinical instructor. A leader in his field, Dr. Stefaniwsky has held positions that have included president of the New Jersey Endoscopy Society and chief of the Department of Gastroenterology at Irvington General Hospital. Board certified in internal medicine and gastroenterology, Dr. Stefaniwsky is a fellow of the American College of Gastroenterology and a fellow of the American College of Physicians. He is also a member of Phi Beta Kappa academic honor society. Dr. Stefaniwsky maintains professional membership in the American Medical Association, New Jersey Medical Society, American College of Gastroenterology and American Society of Gastrointestinal Endoscopy. His research in the use of Ursodeoxycholic acid in bile acid gastritis was published in The Gastroenterology Journal. Dr. Stefaniwsky is a participating provider of the Atlantic Accountable Care Organization. Dr. Stefaniwsky is highly rated in 2 conditions, according to our data. His top areas of expertise are Chronic Erosive Gastritis, Gastrointestinal Bleeding, Gastritis, Gastrectomy, and Endoscopy.

Scott Gelman is a Gastroenterologist in Florham Park, New Jersey. Dr. Gelman is highly rated in 2 conditions, according to our data. His top areas of expertise are Gastroesophageal Reflux Disease (GERD), Barrett Esophagus, Diarrhea, Gastrectomy, and Endoscopy. Dr. Gelman is currently accepting new patients.

Lakshmi Gollapudi, MD, is an interventional gastroenterologist with Atlantic Medical Group (AMG). Board-certified in internal medicine and gastroenterology by the American Board of Internal Medicine, she has over eight years of gastroenterology experience, making her an excellent addition to our team of providers.Dr. Gollapudi specializes in advanced therapeutic procedures to diagnose and treat disorders of the esophagus, stomach, pancreas, gallbladder, liver, and intestines, including complex conditions such as swallowing disorders (dysphagia). She is committed to delivering compassionate, personalized care and ensures every patient is well-informed about their diagnosis and treatment options. Dr. Gollapudi has a special interest in advancing gastrointestinal health in women, with a focus on screening colonoscopy and diagnostic endoscopy tailored to the unique needs of the female population.After earning her medical degree from Osmania Medical College, she completed a residency in internal medicine and a fellowship in gastroenterology at New York Medical College-Westchester Medical Center. Dr. Gollapudi then pursued further focused EUS/ERCP training at New York Medical College–Westchester Medical Center while serving as an attending gastroenterologist. She later completed an advanced endoscopy fellowship with dedicated training in third space endoscopy at Morristown Medical Center.Dr. Gollapudi has authored multiple peer-reviewed publications and delivered numerous oral, poster, and video presentations at national conferences. She is an active member of the American College of Gastroenterology (ACG), American Society for Gastrointestinal Endoscopy (ASGE), and New York Society for Gastrointestinal Endoscopy (NYSGE). She is also a participating provider of the Atlantic Accountable Care Organization. Dr. Gollapudi is highly rated in 2 conditions, according to our data. Her top areas of expertise are Toxic Megacolon, Choledocholithiasis, Gastrointestinal Bleeding, Gastrostomy, and Endoscopy.

Dr. Lisa Stevens joined the Gastrointestinal Group of North Jersey in 2000 after completing her training at a number of prestigious NY hospitals. Her practice treats all general gastroenterology issues, including esophageal disease, irritable bowel syndrome, anorectal disorders, liver disease, and colon cancer screening. Throughout her time, she’s come to understand that decisions about health care are a collaboration between patient and physician. This piece is what pushes Dr. Steven’s to integrate each person's cultural and health beliefs into the treatment process.When not at work, Dr. Stevens enjoys traveling, reading, and spending time with her husband and daughters. She is an ardent supporter of both the fine arts and the performing arts. Among her many activities she’s also involved in a mentoring program at William Paterson University to encourage young women to pursue careers in medicine. Dr. Stevens is highly rated in 1 condition, according to our data. Her top areas of expertise are Irritable Bowel Syndrome (IBS), Ulcerative Colitis, Gastroesophageal Reflux Disease (GERD), Gastrectomy, and Endoscopy.

Zamir Brelvi is a Gastroenterologist in Montville, New Jersey. His top areas of expertise are Non-Alcoholic Fatty Liver Disease, Visceromegaly, Enlarged Liver, Colonoscopy, and Endoscopy.

Yana Cavanagh is a Gastroenterologist in Wayne, New Jersey. Dr. Cavanagh is highly rated in 44 conditions, according to our data. Her top areas of expertise are Hereditary Pancreatitis, Gallstones, Gallbladder Disease, Gastrostomy, and Endoscopy.

Vitaly Fishbein is a Gastroenterologist in West Orange, New Jersey. Dr. Fishbein is highly rated in 40 conditions, according to our data. His top areas of expertise are Irritable Bowel Syndrome (IBS), Non-Alcoholic Fatty Liver Disease, Visceromegaly, Familial Adenomatous Polyposis, and Gastrectomy.

Ying Tang is a Gastroenterologist in Summit, New Jersey. Dr. Tang is highly rated in 38 conditions, according to our data. Her top areas of expertise are Hemorrhoids, Cronkhite-Canada Disease, Juvenile Polyposis Syndrome, Gastrectomy, and Gastrostomy. Dr. Tang is currently accepting new patients.

"John M. Dalena, MD, specializes in conditions and diseases of the esophagus, stomach, small intestine, large intestine, liver, gall bladder, and pancreas. Dr. Dalena also provides a wide range of gastrointestinal services, including cancer screening, nutritional support, therapeutic endoscopy, and colonoscopy.Dr. Dalena is the former Chairman in the Department of Gastroenterology at Morristown Medical Center in Morristown, New Jersey. He is an attending physician in the Department of Internal Medicine at Atlantic Health System's Morristown Medical Center. He is a member of the American Medical Association, Medical Society of New Jersey, Morris County Medical Society, American College of Gastroenterology, and Alpha Omega Alpha Honor Medical Society. He is Past Chairman and a member of the Crohns and Colitis Foundation Medical Advisory Committee - New Jersey Chapter.Dr. Dalena has earned the Morristown Medical Center Physician of the Year Award. He also earned the University of Medicine and Dentistry Fellowship Research First Prize Award and American College of Physicians - New Jersey Chapter Laureate Award for Outstanding Achievement in Medicine. He has been featured multiple times in New Jersey Monthly and Castle Connolly ""Top Doctors"" and ""Top Doctors in the New York Metro Area"" listings. Dr. Dalena is one of few physicians nationwide to earn Castle Connolly ""Top Doctor"" listings for more than 10 consecutive years. His ""Top Doctors"" listings are reprinted in Inside Jersey and US News and World Report.When he is not working with his patients, Dr. Dalena is an avid runner and cyclist. He has completed many duathlons, triathlons, and marathons. A life-long resident of Morris County, Dr. Dalena lives in New Vernon, New Jersey.". Dr. Dalena is highly rated in 12 conditions, according to our data. His top areas of expertise are Gastroesophageal Reflux Disease (GERD), Gas Bloat Syndrome, Diverticular Disease, Gastrectomy, and Endoscopy.

Haleh Pazwash is a Gastroenterologist in Ridgewood, New Jersey. Dr. Pazwash is highly rated in 12 conditions, according to our data. Her top areas of expertise are Eosinophilic Colitis, Gastroesophageal Reflux Disease (GERD), Irritable Bowel Syndrome (IBS), Gastrectomy, and Endoscopy.