Dr. Tara A. Altepeter

Dr. Sara Mixter is Assistant Professor of Medicine and Pediatrics at the Johns Hopkins University School of Medicine. Her areas of clinical expertise are internal medicine, pediatrics, and primary care for adults with developmental disabilities and other complex childhood-onset conditions. She is the director of the Hopkins PACT (Pediatric-informed Adult Care and Transition) Clinic. Dr. Mixter is also the medical director of the Pediatric Complex Care Collaborative (PC3) for the Johns Hopkins Children’s Center. Dr. Mixter received her A.B. from Harvard College. She earned her M.D. from Harvard Medical School and M.P.H. from the Harvard School of Public Health. She completed her residency at Johns Hopkins as part of the inaugural group of trainees in the Urban Health Combined Internal Medicine-Pediatrics Residency Program. Her research interests include transitions of care for adolescents with special healthcare needs and education for residents and medical students, especially in primary care and complex care. Dr. Mixter has served as the Assistant Chief of Service for the Longcope firm of the Osler Medical Housestaff Training Program (2015-16), as well as Assistant Program Director for Ambulatory Education (2014-15). Dr. Mixter is rated as an Advanced provider by MediFind in the treatment of Gastroparesis. Her top areas of expertise are Cerebral Palsy, Gastroparesis, Orbital Cellulitis, and Sickle Cell Disease.

Samantha Butzke is a Pediatric Gastroenterologist in Annapolis, Maryland. Dr. Butzke has been practicing medicine for over 10 years and is rated as an Advanced provider by MediFind in the treatment of Gastroparesis. Her top areas of expertise are Celiac Disease, Lactose Intolerance, Diarrhea, and Eosinophilic Esophagitis.

Mariana Middelhof is a Pediatric Gastroenterologist and a Pediatrics provider in Fairfax, Virginia. Dr. Middelhof is rated as an Advanced provider by MediFind in the treatment of Gastroparesis. Her top areas of expertise are Eosinophilic Colitis, Lactose Intolerance, Crohn's Disease, and Ulcerative Colitis.