Final answer:
The two New Testament books written by a doctor are the Gospel of Luke and the Acts of the Apostles.
Step-by-step explanation:
The two New Testament books that were written by a doctor are the Gospel of Luke and the Acts of the Apostles. The author of these books, Luke, was a physician and a companion of the apostle Paul. In his Gospel, Luke not only describes the life and teachings of Jesus, but he also emphasizes Jesus' compassion for the sick and marginalized. In the Acts of the Apostles, Luke continues the narrative of the early Christian movement after Jesus' resurrection.