The acronym for "Doctor" is "Dr."
The acronym DO behind a physician's name stands for Doctor of Osteopathic Medicine.
DD
PhD = Doctor of Philosophy .
Dr. PH is an acronym for Doctor of Public Health.
Probably Doctor of Divinity.
Either Director of Religious Education or Doctor of Religious Education.
The TARDIS acronym stands for Time and Relative Dimension in Space.
The acronym DVM has numerous different meanings. Among the meanings, the most popular and use are Doctor of Veterinary Medicine and Digital Voltmeter.
Doctor of Podiatric Medicine (or Diploma in Psychological Medicine in the UK, Ireland and most Commonwealth countries).
You wouldn't use one is the acronym had a period in it. You could change the acronym so that it didn't have a period in it; such as ... "The doctor told him he had developed A.I.D.S." to "The doctor told him he had developed AIDS."
PDOC. Pdoc is a compressed phrase combining psychiatrist/psychologist and doctor. It is jargon or slang for psychiatrist.
TARDIS in the Doctor Who Series stands for Time And Relative Dimension In Space. The TARDIS was first seen in the first Doctor Who episode in 1963 with William Hartnell as the Doctor. Susan, the Doctor's granddaughter, claimed to have coined the acronym TARDIS from its name in that first episode.