Answer:

STLUKE

Answer	Crossword Clue
STLUKE	"The beloved physician"
STLUKE	Probable author of the third Gospel
STLUKE	Acts of the Apostles author (abbr.)

STLUKE	Acts of the Apostles author
STLUKE	Physician's patron
STLUKE	Patron of painters and physicians.
STLUKE	Author of a Gospel.
STLUKE	Writer of the third Gospel.
STLUKE	Gospel writer
STLUKE	Name in many a hospital name
STLUKE	Acts of the Apostles writer

STLUKE	He wrote of the prodigal son
STLUKE	Name on many a hospital
STLUKE	Acts of the Apostles writer, by tradition
STLUKE	MDs' patron