Gastroenterology & Hepatology

Our AdventHealth Gastroenterology and Hepatology specialists are nationally recognized for treating digestive and liver diseases. These diseases include Crohn’s disease, ulcerative colitis and hepatitis, among other conditions. Our multidisciplinary approach ensures you receive the most efficient diagnosis and treatment. We believe prevention is key to maintaining digestive health. Our gastroenterologists use innovative diagnostic techniques and minimally invasive procedures to encourage early detection and treatment for a variety of digestive disorders.

Hours of Operation

Monday – Friday: 8 a.m. – 5 p.m.

Meet Our Gastroenterology Team



Raul J. Badillo is a board-certified and fellowship-trained gastroenterologist. Fluent in English and Spanish, he began his studies at the University of Central Florida and earned his medical degree at Boston University School of Medicine. Upon completing his internal medicine internship and residency training at the University of Florida, he was selected for a gastroenterology fellowship at the Mayo Clinic in Jacksonville. Dr. Badillo specializes in gastroesophageal reflux disease, esophageal disorders, diverticular polyps and colorectal polypectomy techniques.



Mari Rivera is a board-certified gastroenterologist. Dr. Rivera received her medical degree from the University of Puerto Rico School of Medicine, where she graduated magna cum laude. She completed her internship and residency at the University of Michigan Hospital in Ann Arbor, and her fellowship at the University of Florida. Dr. Rivera has a special interest in treating Inflammatory Bowel Disease (IBD), including Crohn’s disease and ulcerative colitis. She is bilingual in English and Spanish.



Yashika Rowe, APRN, is an advanced practice registered nurse with nearly a decade of experience in hospital and emergency room (ER) settings. Prior to joining our practice, she was a full-time ER nurse at AdventHealth Orlando for more than six years and worked approximately five years in the labor and delivery, operating room and post-anesthesia care units at a major women’s hospital. Yashika attended Valencia Community College and earned both her Associate of Science and Bachelor of Science in Nursing degrees at Florida Hospital College of Health Sciences (now AdventHealth University) in Orlando. She completed her postgraduate training at the University of South Florida, earning a Master of Science in Nursing and certification as a family nurse practitioner.



Brad Lasley, MMS, PA-C, is a certified physician assistant with experience managing patients with complex liver conditions. He specializes in integrative multidisciplinary care and complex medical management while monitoring patient progress throughout the health care journey. Brad’s experience includes management of fatty liver disease, infectious and inflammatory liver disease, cirrhosis of the liver, liver failure, liver tumors and other high-risk conditions. He has a special interest in the treatment of hepato-pancreato-biliary cancer and fatty liver disease.



Torfay Sharifnia Roman, MD, joined the AdventHealth Transplant Institute in 2014 as a transplant hepatologist. She is triple board certified in internal medicine, gastroenterology and transplant hepatology. Dr. Roman cares for patients requiring treatment for liver related diseases, including those with end-stage liver failure/cirrhosis needing liver transplantation. Her clinical specialties include management of patients with viral hepatitis, NASH/fatty liver, autoimmune liver disease, genetic liver diseases, alcohol-mediated disease, liver cancer and cirrhosis. She also specializes in treating patients who require liver transplantation and manages their long-term post-transplant care. She provides endoscopic evaluation for those needing EGDs and colonoscopies.

Get the Whole Story - Sign Up for Our Newsletter