Ellis Primary Care in Clifton Park offers patients high-quality care from physicians board certified in family medicine, as well as convenient access, when needed, to a variety of on-site healthcare services. Ellis Primary Care in Clifton Park is located at the Medical Center of Clifton Park, 103 Sitterly Road near Exit 9 of the Northway. Patients at this location have immediate access, when needed, to emergent care (open 7 a.m. to 9:30 p.m., seven days a week), on-site laboratory and imaging services and specialty services.