Home Locations Scripps Proton Therapy Center Medical Services Medical Services OverviewPhoneHoursAmenities Scripps Proton Therapy Center 9730 Summers Ridge Rd. San Diego, CA 92121 Get directions 8 a.m. - 5 p.m. View full clinic hours View in Google Maps Phone 858-549-7400 8 a.m. - 5 p.m.ParkingFree, ample parking is available at the center. Imaging Wi-Fi Free parking