William J. Mazzella, M.D.
Family Medicine physicianConcierge
Old Town M.D. · Manassas, VA
Medical school University of North Carolina School of Medicine
Training Carolinas Medical Center
Old Town M.D. in Manassas, VA
Updated November 2026How we check doctors
About the practice
The clinic is a membership-based private physician house-call/telehealth practice.
The site states HSA/FHA accounts often reimburse for its services.
The site says its physician is unencumbered by insurance reimbursements and pre-authorizations.
Membership and fees
- Adult membership tier and price for ages 19-39.
- Adult membership tier and price for ages 40-59.
- Adult membership tier and price for ages over 59.
Services
- A service the clinic lists
Practice details come from the practice's own website (oldtownmd.com).
Doctors at this practice