Clinical Team at the Center for Women's Gastrointestinal Medicine

Schedule an Appointment

For more information, provider availability and appointment scheduling, please call us at 401-793-7080.

Our fax number is 401-793-7801.

Gastroenterologist

Zilla H. Hussain, MD, is a gastroenterologist in the Center for Women’s Gastrointestinal Medicine at the Women’s Medicine Collaborative. 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. Hussain completed her fellowship in gastroenterology and an Advanced Fellowship in Esophageal Diseases at Dartmouth-Hitchcock Medical Center.

Hussain is board certified in Internal Medicine and Gastroenterology. Prior to joining the Women’s Medicine Collaborative, Hussain was an instructor of medicine at Dartmouth Medical School in Hanover, New Hampshire. She is a member of the American College of Gastroenterology.

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.

Gastroenterologist

Colleen R. Kelly, MD, FACG, is a gastroenterologist in the Center for Women’s Gastrointestinal Medicine at the Women’s Medicine Collaborative. She is an assistant 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 the Women’s Medicine Collaborative. 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, C. difficile, chronic diarrhea and other gastrointestinal motility disorders common in women, such as constipation and irritable bowel syndrome.

Gastroenterologist and Co-Director, Program for Pelvic Floor Disorders, Women’s Medicine Collaborative

Amanda Pressman, MD, 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, with a focus 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 at The Warren Alpert Medical School of Brown University and directs the fellowship pathway in Women’s Gastrointestinal Diseases at Alpert Medical School. She received a 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.

Colorectal Surgeon and Co-Director, Program for Pelvic Floor Disorders, Women’s Medicine Collaborative

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 University 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.

Urologist

Janice Santos Cortes, MD is a board-certified urologist in the Program for Pelvic Floor Disorders at The Women’s Medicine Collaborative. Dr. Santos also serves as an assistant professor of urology at The Warren Alpert Medical School of Brown University.

Dr. Santos received her undergraduate and medical degrees from the University of Puerto Rico before completing a urology residency at the Albert Einstein School of Medicine, Montefiore Medical Center in New York. She trained in urologic oncology at the University of Miami and Jackson Memorial Hospital in Florida before pursuing a second fellowship in female urology, voiding dysfunction, urodynamics, and neurology at New York-Presbyterian Hospital/Columbia University Medical Center in New York.

A member of the American Urological Association, the American Medical Association, the Society of Women in Urology, the Society for Urodynamics and Female Urology, and the Society of Urologic Oncology, Dr. Santos brings a rich background in urologic medicine to the Women’s Medicine Collaborative.

Dr. Santos’ clinical interests include the medical and surgical treatment of female incontinence, vaginal prolapse, voiding dysfunction, urodynamics and surgical outcomes. She also has a special interest in the treatment of patients with neurogenic voiding dysfunction.

Lucia Fontes-Borts, DNP, MSN, FNP-BC
Nurse Practitioner

Lucia Fontes-Borts, DNP, MSN, FNP-BC is a nurse practitioner in the Center for Women’s Gastrointestinal Medicine at the Women’s Medicine Collaborative. She received a baccalaureate degree in nursing from Rhode Island College in Providence, a graduate degree from the Massachusetts College of Pharmacy and Health Science in Boston, and earned a post-graduate degree as a doctor of nursing practice (DNP) from Sacred Heart University in Fairfield, Connecticut.

She has extensive experience in internal medicine, oncology, and women’s health. Fontes-Borts is a board certified family nurse practitioner. Her clinical interests include women’s health, hereditary colon cancer, and cancer prevention. She is fluent in Portuguese, Spanish, and Cape Verdean Creole.   

Sara Wriston, MSN, FNP-BC
Nurse Practitioner

is a nurse practitioner in the Center for Women’s Gastrointestinal Medicine at the Women’s Medicine Collaborative. She received an undergraduate degree from the University of Michigan in Ann Arbor, Michigan and a graduate degree from the University of Pennsylvania in Philadelphia, Pennsylvania.

As well as gastroenterology, she has extensive experience in internal medicine, obstetrics and gynecology, and oncology. Wriston has been an important collaborator in the Perinatal Hepatitis Prevention Program and was responsible, along with Silvia Degli Esposti, MD, for the evaluation and treatment of patients with viral hepatitis at Women & Infants Hospital before moving to the Women’s Medicine Collaborative. Wriston is a board certified family nurse practitioner. Her clinical and research interests include liver disease, particularly hepatitis, and gastrointestinal problems in pregnancy.