Obviously, coverage rates vary for the individuals or entities applying. For instance, podiatrists tend to pay less than other types of physicians. Registered Nurses (RNs) seem to get reasonable rates on malpractice insurance. Nurse Practitioners (NPs) and Certified Registered Nurse Anesthetists (CRNAs) usually have more expensive malpractice insurance premiums.
Physician Assistants (PAs) are a rapidly growing profession with a lot of variance in role or responsibility at differing places, so rates for PAs can vary. Medical students are often covered through their institutions, but there are some exceptions. An individual plan would be beneficial in some of those cases.
Regardless of your profession, those who complete a risk management course (and other educational programs from your insurer) will find discounts are often available. Most insurance providers offer this option, but not all. Most policies vary by state as well due to differing rates and laws at the state level.