ChristianaCare Primary Care at New Castle offers primary medical care for adults and children. Services include: Immunizations. Physical examinations. Minor medical procedures. Lab services on-site. ChristianaCare Primary Care at New Castle 94 Christiana Road, New Castle, DE 19720 directions 302-327-7630 Monday - Wednesday 7:30 a.m. to 7 p.m. Thursday 7:30 a.m. to 5 p.m Friday […].