We offer COVID-19 testing in all offices.

*Rapid antigen testing is currently available in CA, NJ, and TX only.

Dear Dr. Christina
PM Pediatrics

Medical Leadership

Merissa Rzonca, MD

Mark Roddy, MD, FAAP

Dr. Mark Roddy is the Medical Director for PM Pediatrics of Herndon and Springfield, VA, where he oversees all medical operations for the practice. Prior to joining PM Pediatrics, Dr. Roddy served as the Director of the Pediatric Emergency Department at Holy Cross Hospital in Silver Spring, MD.  He has received awards for teaching at the resident, fellow, and attending levels, and is board certified in Pediatric Emergency Medicine.  Dr. Roddy completed his Pediatric Emergency Medicine fellowship at Children’s National Medical Center, and is a clinical instructor in Emergency Medicine at the Georgetown University School of Medicine. He completed his pediatric residency at Children’s Memorial Hospital (now Lurie Children’s), and received his medical degree from Georgetown University.