In the United States, the highest-paying doctoral degree is typically the Doctor of Medicine (MD), with median annual salaries exceeding $239,200, primarily due to the high demand for physicians and specialists in healthcare. Other lucrative PhD or professional degrees include the Doctor of Dental Medicine (DMD), with median salaries around $170,910, and specialized fields such as Doctor of Pharmacy (PharmD) and Doctor of Engineering, which also command high salaries depending on the industry and experience level. While traditional PhDs like Physics or Computer Science can lead to well-paying roles, they generally do not reach the salary levels of professional doctorates like MDs or DMDs. Overall, careers in medicine tend to offer the highest earning potential among doctoral degrees in the USA.