Potomac Ear, Nose, & Throat Potomac Ear, Nose and Throat has been serving Woodbridge and surrounding communities for over a ...decade. Founded in 2004 by Dr. Arabshahi and Dr. Ipakchi, they quickly became the premier ENT specialists in eastern Prince William county. Due to the ever-expanding population of the metropolitan DC area and its increased demand for their services, Dr. Cheng joined the...