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Thomas D. DeNucci, MD, is a gastroenterologist at Lifespan Physician Group and a clinical associate professor of medicine at The Warren Alpert Medical School of Brown University. He earned his medical degree and completed a fellowship in gastroenterology at Rhode Island Hospital and Brown University, and completed his residency in internal medicine at Roger Williams Medical Center in Providence. He specializes in gastroenterology and he is especially interested in studying and treating various gastrointestinal diseases. He is a member of the American College of Physicians and the American Gastroenterological Association.
Fadlallah Habr, MD, is the director of gastroenterological services for Lifespan Physician Group as well as director of therapeutic endoscopy at Rhode Island Hospital. He is an associate professor at The Warren Alpert Medical School of Brown University. After earning his medical degree from Lebanese University School of Medicine in Beirut, he completed his internal medicine residency at the Hospital of Saint Raphael with Yale University School of Medicine in New Haven, Connecticut. Dr. Habr then completed a gastroenterology fellowship at Rhode Island Hospital/The Alpert Medical School, and gained further expertise in therapeutic endoscopy at Saint Michael's Hospital, affiliated with the University of Toronto.
Dr. Habr’s main interests are endoscopic therapy for bile duct diseases in addition to innovative endoscopic therapies for the treatment of Barrett's esophagus and esophageal cancers. Dr. Habr is the recipient of multiple Dean's teaching awards, GI fellows outstanding teaching awards as well as the Beckwith Family Teaching award. Areas of expertise include advanced pancreatico-biliary endoscopy, endoscopic therapies for GI cancers, and inflammatory bowel diseases.
Sarah Hyder, MD is the director of endoscopic ultrasound at Rhode Island Hospital and a gastroenterologist at Lifespan Physician Group. Dr. Hyder received a medical degree from The Warren Alpert Medical School of Brown University. She completed her internal medicine residency at Brown University’s program at Rhode Island Hospital, The Miriam Hospital, and the Providence Veterans Medical Center. Dr. Hyder is a graduate of the gastroenterology fellowship at Brown University and the interventional endoscopy fellowship at Dartmouth Hitchcock Medical Center in Hanover, NH.
Dr. Hyder was an instructor of medicine at Dartmouth Hitchcock Medical Center and is currently an assistant professor of medicine at The Warren Alpert Medical School of Brown University. She received an Exemplary Teaching award from Brown University and is the 2014 recipient of the Joseph A. DiMase Brown University Gastroenterology Research Award. Areas of expertise include biliary disorders, pancreas disorders, and therapeutic endoscopy including ERCP And EUS (endoscopic ultrasound).
Zilla H. Hussain, MD, is a gastroenterologist with Lifespan Physician Group. She sees patients at Lifespan Physician Group Gastroenterology in East Providence, and at the Center for Women’s Gastrointestinal Medicine in Providence. She received a medical degree from State University at Buffalo School of Medicine and Biomedical Sciences in New York, and completed her residency in internal medicine at Boston University Medical Center.
Dr. Hussain completed her fellowship in gastroenterology and an advanced fellowship in esophageal diseases at Dartmouth-Hitchcock Medical Center. Dr. Hussain is board certified in internal medicine and gastroenterology. Prior to joining Lifespan, Dr. Hussain was an instructor of medicine at Dartmouth Medical School in Hanover, New Hampshire. She is a member of the American College of Gastroenterology.
Dr. Hussain has participated in several clinical trials. Her clinical and research interests include gastrointestinal reflux disease, esophageal motility disorders, Barrett’s esophagus, Eosinophilic Esophagitis, and achalasia. She is fluent in English and Hindi/Urdu. Her area of expertise is in motility disorders.
Colleen Kelly, MD, FACG, is a gastroenterologist with Lifespan Physician Group Gastroenterology at its East Providence location and at the Center for Women’s Gastrointestinal Medicine. She is an associate professor of medicine at The Warren Alpert Medical School of Brown University and a faculty member in the fellowship pathway in women’s gastrointestinal diseases at The Warren Alpert Medical School of Brown University. She received a medical degree from Ohio State University in Columbus, Ohio, completed a residency in internal medicine at Boston Medical Center, and completed a fellowship in gastroenterology at The Warren Alpert Medical School of Brown University. She is a fellow of the American College of Gastroenterology.
Dr. Kelly has been an active participant in the Rhode Island Pelvic Floor Network and led the irritable bowel syndrome and motility effort at Women & Infants Hospital before moving to Lifespan. She is nationally recognized in the field of gut flora and its implication in recurrent C. difficile infection. The focus of her research and clinical practice is fecal microbiota transplant (FMT) and she has assisted many physicians and institutions in developing FMT protocols.
Dr. Kelly has authored a number of papers and abstracts on the subject and was a member of a working group that drafted a best-practices article for treating C. difficile infection with FMT, published in 2011. Dr. Kelly is a principal investigator for the first US clinical trial of FMT to treat relapsing C. difficile infection, funded by the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK). She is on the board of advisors of the Fecal Transplant Foundation. Dr. Kelly is board certified in gastroenterology. Her clinical interests include fecal transplantation, treatment of C. difficile, chronic diarrhea and other gastrointestinal motility disorders common in women, such as constipation and irritable bowel syndrome. Areas of expertise include C. difficile treatment, fecal transplantation, inflammatory bowel diseases, and women’s health.
Amanda Pressman, MD, FACG, is a gastroenterologist in the Center for Women’s Gastrointestinal Medicine at the Women’s Medicine Collaborative and director of the gastroesophageal and rectal motility laboratory at Lifespan. She is co-director of the program for pelvic floor disorders, which focuses on chronic constipation and fecal incontinence. In addition, she heads the GI Disorders in Pregnancy Program at the Women’s Medicine Collaborative. Dr. Pressman is an instructor of medicine and directs the fellowship pathway in women’s gastrointestinal diseases at The Warren Alpert Medical School of Brown University.
Dr. Pressman received her medical degree from Case Western Reserve University School of Medicine and completed a residency at Harvard Medical School. She is a graduate of the gastroenterology fellowship at Alpert Medical School. During her fellowship, she received the prestigious Virology Fellowship Award from Bristol Myers Squibb and the Joe DiMase award for her research on colorectal cancer screening. She has published original research articles and chapters in the field of women’s health.
Dr. Pressman is board certified in gastroenterology. Her clinical and research interests are gastroesophageal motility disorders including pelvic floor disorders, gastroparesis and excessive nausea and vomiting in pregnancy, and colorectal cancer screening in women. Areas of expertise include motility disorders, pelvic floor disorders, and women’s health.
Leslie Roth, MD, FACS, FASCRS is co-director of the Program for Pelvic Floor Disorders in the Center for Women’s Gastrointestinal Medicine at the Women’s Medicine Collaborative and a colorectal surgeon at Brown Surgical Associates.
Dr. Roth is the Rosalyn and Joseph Sinclair Clinical Professor of Pelvic Floor Disorders and an assistant professor of surgery at The Warren Alpert Medical School of Brown University. She received her undergraduate degree from the University of Arizona and her medical degree from the Tel Aviv University Sackler School of Medicine, New York State/American Program, in Ramat Aviv, Israel and New York.
She completed her residency at Penn State Milton S. Hershey Medical Center. She is a graduate of the colon and rectal surgery fellowship at the University of Louisville in Kentucky. Dr. Roth is board certified in both general and colorectal surgery. She is also a fellow of both the American College of Surgeons and the American Society of Colon and Rectal Surgeons.
Dr. Roth's areas of clinical interest and expertise include colon and rectal cancer surgery, colonoscopy, laparoscopic/minimally invasive surgery, benign anorectal conditions, fecal incontinence and other pelvic floor disorders.
Shannon L. Simmons, MD, is a gastroenterologist at Lifespan Physician Group. She earned her medical degree from The Warren Alpert Medical School of Brown University and went on to study internal medicine during her residency at Boston University Medical Center. She returned to Brown University and Rhode Island Hospital to complete her fellowship in gastroenterology. Dr. Simmons is especially interested in general gastroenterology, colorectal cancer screening and prevention, and women’s health.
Laura Massa, MSN, ANP-BC, is a nurse practitioner at Lifespan Physician Group – Gastroenterology. She received a bachelor of science degree in nursing from University of Massachusetts Dartmouth and a master of science degree in nursing from the University of Massachusetts Dartmouth. Laura is a board-certified nurse practitioner and is certified by the American Nurses Credentialing Center. She is a member of the American College of Gastroenterology. Her areas of clinical interest include fatty liver and gastroesophageal reflux disease (GERD).
Erica Taylor, PA-C, is a physician assistant with Lifespan Physician Group-Gastroenterology at the Center for Women’s Gastrointestinal Medicine at the Women’s Medicine Collaborative. Erica graduated with a bachelor of science degree in neuroscience from Dickinson College in Carlisle, Pennsylvania. She received a master of science degree in physician assistant studies at the University of New England in Portland, Maine.
Erica is a board certified physician assistant. She is a member of the American Academy of Physician Assistants and the Association of Physician Assistants. Her areas of interest include colon cancer screening and awareness.