Collocations for doctorate - noun

honorary
engineering, music, etc.

do, study for, take
She's doing a doctorate in ancient history.

complete, finish
He's completed his doctorate on bees.

have, hold
The applicants all have doctorates from good universities.

be awarded, be granted, gain, get, obtain, receive

degree
program (AmE) (usually doctoral program)

doctorate from
a doctorate from Cornell University

doctorate in
a doctorate in Business Administration

doctorate of
a doctorate of divinity

doctorate on
a doctorate on post-colonial development