Dr. Dana Block-Abraham is a specialty care physician board certified in maternal-fetal medicine and obstetrics and gynecology. She joined Inova Health System in 2021 and has been practicing since 2007. Dr.

Dr. Daniel Tiller is a primary care physician board certified in family medicine at Inova Health System. He joined Inova in 2022 and has been practicing since 2018. Prior to joining Inova, Dr. Tiller worked as a team physician for Auburn High School, an assistant team physician for Radford University, an assistant team physician at Virginia Tech and a sports medicine fellow at Edward Via College of Osteopathic Medicine. Dr. Tiller’s areas of clinical interest include sports medicine, lifestyle medicine, occupational medicine and cardiology.

Dan Dollison is a board-certified physician assistant at Inova Health System. He joined Inova in 2017 and has been practicing since 1994. His background includes experience in family medicine, neurosurgery, trauma and sports orthopedics, surgical oncology, emergency medicine, and urgent care. Dan has a broad-based background in medicine and enjoys the day-to-day challenges of helping patients with their immediate healthcare problems. Currently, Dan provides an acute care walk-in service for Inova General Internal Medicine Group in Ballston.