<p>Reviving this interesting thread to put my two cents in:</p>
<p>I am a lawyer in my 50s. I know several JD/MDs. I have never met anyone who did a combined program, and I can't imagine who should really want to do that.</p>
<p>I can't offer anything too different from what appears in that "pshrink" link, except to confirm it from a different direction. Most of the JD/MDs I know are MDs who, for one reason or another, burned out on practicing medicine, and decided to change careers. It is relatively easy for an experienced doctor to earn enough working part time to cover living expenses and tuition at a third-tier local public law school, and that's what most of them did. With diligence, one can get a JD in 3-4 years that way. Ordinarily that's not the best way to get into law, but for these people -- respected doctors with financial security and an extensive social and professional network, including lots of lawyer friends -- it worked just fine. Generally, they are practicing law, which is what they went to law school to do. Their MDs are essentially marketing tools: some of them specialize in representing doctors or hospitals in business deals, some of them do personal injury or malpractice litigation, some of them do patent law (for which some kind of advanced non-legal degree is generally required), some are doing government policy work. But none of them are doing anything for which an MD is really necessary. And it would be absurd to spend the time it takes to prepare for and obtain an MD, and then get licensed to practice medicine (because why would you get an MD without doing that?), in order to get a relatively minor marketing boost for your legal practice.</p>
<p>If you want to by a physician, and want to be involved in business deals or administration, an MBA or MPH are more valuable degrees, and easier to obtain, than a JD.</p>
<p>A few JD/MDs are lawyers who burned out on practicing law. (Lots of lawyers wish they were doctors. A former senior partner of mine -- a famous tough real estate lawyer, petty dictator, and unmatched high-stakes poker player -- once shocked me by telling me that if he could have his life back he would have gone to medical school, and saved lives instead of helping rich people get richer. And this was a guy who loved helping rich people get richer, and got pretty rich himself doing it.) There aren't so many of those, though. If you start from scratch, it's basically a 10-year process to go from "Start" to having a real, paying job as a doctor, and it really isn't possible to go to medical school or to be a resident part time. So you basically have to burn out on your legal career pretty early (and not have any kids, or have a really rich spouse) for an MD to be a viable option. Most of these people just practice medicine; a few of them use their JDs as a marketing hook for some things, but basically they've flushed the law degrees.</p>
<p>And the web site is absolutely right: Doctors who do a lot of expert witnessing, or who work in administration, pick up all the law they need on the job. Lawyers who do personal injury, medical malpractice, criminal defense work, can learn the medicine they need in a lot fewer than four years. When I was in law school, I did a lot of work on death penalty cases, and various types of psychiatric defenses. I worked with psychiatrists and clinical psychologists a lot. I'm not saying it wasn't a lot of work to learn what I had to learn, but it was the work of months, not years.</p>