Dr. Wilsey specializes in pediatric gastroenterology, hepatology, and nutrition in the Department of Medicine. He is the vice chair of the Division of Gastroenterology and served as chief of the medical staff from 2020-2021. In 2022, he was named Johns Hopkins All Children’s Hospital Physician of the Year in the Johns Hopkins Medicine Clinical Awards. Dr. Wilsey is an advanced therapeutic endoscopist specializing in endoscopic retrograde cholangiopancreatography (ERCP) for infants and children. He is one of a select group of gastroenterologists with this expertise internationally and across North America. At Johns Hopkins All Children’s Hospital, he has developed and implemented multiple clinical innovations related to therapeutic endoscopy. He is an associate professor of clinical pediatrics at the Johns Hopkins University School of Medicine. Additionally, he is a core faculty member of the Johns Hopkins All Children’s Pediatric Residency Training Program, where he serves as a faculty and research mentor for pediatric resident physicians. Dr. Wilsey has published more than 90 peer-reviewed research articles, review articles, case reports, consensus statements, and book chapters. He also serves as a peer reviewer for several medical journals, and is the associate editor of the Journal of Pediatric Gastroenterology and Nutrition. He has delivered numerous talks nationally and internationally in the field of advanced therapeutic endoscopy, including the management of esophageal strictures. Dr. Wilsey joined the medical staff in 2002. He is also a clinical professor of pediatrics at the University of South Florida College of Medicine and a former associate program director of the University of South Florida Pediatric Residency Training Program. He earned his medical degree from the University of Miami School of Medicine. He completed his pediatric residency at Baylor College of Medicine and Texas Children’s Hospital, followed by fellowship training in pediatric gastroenterology, hepatology, and nutrition at Baylor College of Medicine and Texas Children’s Hospital. Dr. Wilsey sees patients at the following location: Outpatient Care, St. Petersburg 601 5th Street South, St. Petersburg, FL 33701 Phone: 727-822-4300 Recent News Articles and Media Coverage Study finds possible link between long COVID and mystery hepatitis in kids, Today Show - NBC (June 17, 2022) Is COVID-19 Related to Pediatric Cases of Hepatitis? Verywell Health (June 28, 2022). Dr. Wilsey is rated as an Advanced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Esophageal Atresia, Eosinophilic Esophagitis, Tracheoesophageal Fistula, Gastrostomy, and Endoscopy.

Dr. McClenathan is chief of the division of the pediatric gastroenterology, hepatology and nutrition at Johns Hopkins All Children’s Hospital. He earned his medical degree at Louisiana State University School of Medicine and completed his pediatric internship and residency at The Johns Hopkins Hospital and his pediatric gastroenterology and nutrition clinical and research fellowships at Harvard Medical School and Massachusetts General Hospital. Dr. Mcclenathan is rated as an Advanced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Lactose Intolerance, Morning Sickness, Rotor Syndrome, Dubin-Johnson Syndrome, and Gastrostomy.

Dr. Law has been a long-time resident of Florida, growing up in Orlando and completing her undergraduate studies and medical school at the University of South Florida in Tampa. She trained at USF for pediatric residency and spent an additional year as chief USF pediatric resident at Johns Hopkins All Children's Hospital. She lived in New York City while completing her fellowship in pediatric gastroenterology, hepatology, and nutrition at New York Presbyterian Hospital - Columbia University. She spent her training in both clinical practice and lab research focusing on the enteric nervous system and motility issues in mice. Her career passion is caring for children with all types of general GI disorders. Dr. Law sees patients at the following location: Outpatient Care, St. Petersburg 601 5th Street South, St. Petersburg, FL 33701 Phone: 727-822-4300. Dr. Law is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Delayed Growth, Lactose Intolerance, Morning Sickness, and Gastroschisis.

Dr. Brown is a general pediatrician who specializes in newborn hospital medicine at Johns Hopkins All Children’s Hospital in St. Petersburg, Florida. She joined the hospital staff in 2025. She has specialized training as a lactation counselor and is passionate about supporting families who choose to breastfeed their infants. Dr. Brown earned her medical degree from the University of Florida College of Medicine. She completed a pediatric residency at Johns Hopkins All Children’s. Dr. Brown is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Scarlet Fever, Croup, Diarrhea, and Asthma in Children.

Dr. Rivera-Nieves specializes in pediatric gastroenterology, hepatology and nutrition in the Department of Medicine. She sees patients on our main campus in St. Petersburg and at Johns Hopkins All Children’s Outpatient Care, Sarasota. She joined the medical staff in 2020. Dr. Rivera-Nieves earned her medical degree from the Universidad Autónoma de Guadalajara in Jalisco, Mexico. She completed a pre-internship medical program at New York Medical College in Valhalla, New York. She then completed a family medicine internship from Vidant Medical Center, East Carolina University/Brody School of Medicine in Greenville, North Carolina, followed by a pediatric residency in general pediatrics from Vidant Medical Center, East Carolina University/Brody School of Medicine. Dr. Rivera-Nieves also completed a pediatric gastroenterology fellowship from Orlando Health, Arnold Palmer Hospital for Children/University of Florida in Orlando, Florida. Dr. Rivera is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Lactose Intolerance, Atresia of Small Intestine, Fecal Impaction, and Small Bowel Bacterial Overgrowth.

Dr. Saccaro is a pediatric emergency medicine physician at Johns Hopkins All Children’s Hospital. She joined the hospital staff in 1995. Dr. Saccaro earned her medical degree from St. George’s University in Grenada, West Indies. She completed a pediatric residency at St. Joseph’s Hospital & Medical Center in Paterson, New Jersey and a fellowship in pediatric emergency medicine at Tampa General Hospital in Tampa, Florida. Dr. Saccaro is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Respiratory Syncytial Virus (RSV) Infection, Genetic Epilepsy with Febrile Seizures Plus (GEFS+), Pertussis, and Diarrhea.

Zorana Grujic is a primary care provider, practicing in Family Medicine in Saint Petersburg, Florida. Dr. Grujic is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Osteomyelitis in Children, Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, and Hypertension.

Sally Smith is a Pediatrics provider in St Petersburg, Florida. Dr. Smith is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Chronic Rhinosinusitis with Nasal Polyps (CRSwNP), Obesity in Children, Croup, and Asthma in Children.

Ernst Bontemps is a Gastroenterologist in Saint Petersburg, Florida. Dr. Bontemps is rated as a Distinguished provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Painful Swallowing, Swallowing Difficulty, Trichohepatoenteric Syndrome, Gastrectomy, and Colonoscopy.

David Long is a primary care provider, practicing in Internal Medicine in St Petersburg, Florida. Dr. Long is rated as a Distinguished provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Tracheitis, Diarrhea, Trichohepatoenteric Syndrome, Hip Replacement, and Ureteroscopy.

Neil Bajwa is a Gastroenterologist in Pinellas Park, Florida. Dr. Bajwa is rated as a Distinguished provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Chronic Idiopathic Constipation (CIC), Swallowing Difficulty, Painful Swallowing, Endoscopy, and Gastrostomy.

Rogelio Perez is a Gastroenterologist in Pinellas Park, Florida. Dr. Perez is rated as a Distinguished provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Chronic Idiopathic Constipation (CIC), Chronic Erosive Gastritis, Diarrhea, Gastrectomy, and Colonoscopy.

Chetan Desai is a Gastroenterologist in Clearwater, Florida. Dr. Desai has been practicing medicine for over 44 years and is rated as a Distinguished provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Diarrhea, Trichohepatoenteric Syndrome, Gardner Syndrome, Gastrectomy, and Gastrostomy.

Dilip Ghanekar is a Gastroenterologist in Clearwater, Florida. Dr. Ghanekar is rated as a Distinguished provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Swallowing Difficulty, Painful Swallowing, Familial Adenomatous Polyposis, Endoscopy, and Gastrectomy.

Joseph Staffetti is a Gastroenterologist in Clearwater, Florida. Dr. Staffetti is rated as a Distinguished provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Chronic Erosive Gastritis, Swallowing Difficulty, Painful Swallowing, Gastrectomy, and Colonoscopy.

Amanda Borden is a Pediatrics provider in St Petersburg, Florida. Dr. Borden is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Obesity in Children, Roseola, Viral Gastroenteritis, and Asthma in Children. Dr. Borden is currently accepting new patients.

Rafael Santiago is an Emergency Medicine specialist and a Pediatrics provider in Saint Petersburg, Florida. Dr. Santiago is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Respiratory Syncytial Virus (RSV) Infection, Asthma in Children, Croup, and Genetic Epilepsy with Febrile Seizures Plus (GEFS+).

Benjamin Tharian is a Gastroenterologist in St Petersburg, Florida. Dr. Tharian is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Bile Duct Obstruction, Cholestasis, Gastrointestinal Bleeding, Endoscopy, and Gastrectomy.

Chris Carson is a primary care provider, practicing in Internal Medicine in Saint Petersburg, Florida. Dr. Carson has been practicing medicine for over 17 years and is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Acute Kidney Failure, Urinary Tract Infection in Children, Barrett Esophagus, Bladder Reconstruction, and Gastrostomy.

Maritza Day is a primary care provider, practicing in Family Medicine in St Petersburg, Florida. Dr. Day is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, Hypertension, Endoscopy, and Ureteroscopy.