* Doctor of Medicine (M.D.): A professional doctorate in medicine.
* Doctor of Jurisprudence (J.D.): A professional doctorate in law.
* Doctor of Education (Ed.D.): A professional doctorate focused on education.
* Doctor of Business Administration (DBA): A professional doctorate in business.
So, while a Ph.D. is a doctorate, not all doctorates are Ph.D.s. If someone has a Ph.D., they have a doctorate. If someone has a doctorate, they might have a Ph.D., but they could also have another type of doctorate.