Katharin is a licensed physical therapist assistant and she has been at the Centreville location since 2001. She received her Bachelor's degree in exercise science and nutrition at Virginia Tech and went on to earn an Associate's Degree from Northern Virginia Community College's physical therapist assistant program. Katharin has completed coursework in outpatient orthopedic topics. Katharin says, "I enjoy spending time with my patients and giving them the tools and knowledge they need to return to their previous level of function."

Katherine Silveri is a board-certified physician assistant. Prior to joining Prince William Family Medicine, an Inova Partner, Katherine worked as a physician assistant in the U.S. Army from 2012 to 2016. She then went on to be a medical director for an urgent care practice in Seattle before coming back to Virginia, where she grew up. She continued working in urgent care before settling in with primary care in order to serve her local community and be closer to home. Outside of the office, Katherine likes spending time with family, relaxing, cooking, and doing pottery and woodworking.

Katie received her Bachelor's Degree with top honors in Health Sciences and Administration from James Madison University in 1998. She then received a Masters Degree in Physical Therapy from Shenandoah University in 2002 and her Doctor of Physical Therapy degree in 2004, also from Shenandoah University. She was worked for Inova since 2004. Katie has an orthopedic background in the Maitland approach to spine conditions but also has extensive experience with various diagnoses and pathologies of the shoulder, hip and knee. Katie has received intensive training in dry needling.