<p>Is it possible? For example, could you earn 2 Ph. D's, a Ph. D & J.D., or a Ph. D & M.D.?</p>
<p>As far as I've read, a Ph.D and J.D and a Ph.D and a MD, you can get from some schools. However, two PhD's are rare. You wouldn't be able to do them at the same time and you will have to do your second PhD in a dramatically different field.</p>
<p>MD/PhD programs, often times called the Medical Scientist Training Program (backed by the NIH) are very well established. Many of the premier med-schools in the country run such programs.</p>
<p>Harvard:
<a href="http://www.hms.harvard.edu/md_phd/%5B/url%5D">http://www.hms.harvard.edu/md_phd/</a></p>
<p>Johns Hopkins
<a href="http://www.hopkinsmedicine.org/mdphd/%5B/url%5D">http://www.hopkinsmedicine.org/mdphd/</a></p>
<p>Stanford
<a href="http://mstp.stanford.edu/%5B/url%5D">http://mstp.stanford.edu/</a></p>
<p>UCSF
<a href="http://www.medschool.ucsf.edu/mstp/program/program_fr.html%5B/url%5D">http://www.medschool.ucsf.edu/mstp/program/program_fr.html</a></p>
<p>Washington University in St. Louis
<a href="http://mstp.wustl.edu/#%5B/url%5D">http://mstp.wustl.edu/#</a></p>
<p>Columbia
<a href="http://mdphd.columbia.edu/home/%5B/url%5D">http://mdphd.columbia.edu/home/</a></p>
<p>University of Pennsylvania
<a href="http://www.med.upenn.edu/mstp/applicant.html%5B/url%5D">http://www.med.upenn.edu/mstp/applicant.html</a></p>
<p>Yale
<a href="http://info.med.yale.edu/mdphd/%5B/url%5D">http://info.med.yale.edu/mdphd/</a></p>
<p>Duke
<a href="http://www.mstp.duke.edu/%5B/url%5D">http://www.mstp.duke.edu/</a></p>
<p>Michigan
<a href="http://www.med.umich.edu/medschool/mstp/%5B/url%5D">http://www.med.umich.edu/medschool/mstp/</a></p>
<p>Basically, an MD/PhD is a specialized program designed for those who want to make a career out of academic medicine. It generally takes 7-8 years to complete both degrees. </p>
<p>I would caution anybody who wants to consider such a program that you should only do so if you are truly serious about a career in medical research and academia. You don't enter such a program if you want to be a regular practicing doctor. Not only does the program take 3-4 years longer, but the programs are not designed to produce regular doctors. Furthermore, if you don't have passion for research, I would seriously question whether you would be able to successfully complete the PhD portion of the MD/Phd program. </p>
<p>You can also get a coordinated JD/PhD at some schools. For example, here is one at Harvard.</p>
<p>I have heard of rare 'dual-PhD's'. Here are a few.</p>
<p><a href="http://www.sla.purdue.edu/gerontology/education/dual_phd.htm%5B/url%5D">http://www.sla.purdue.edu/gerontology/education/dual_phd.htm</a>
<a href="http://www.northwestern.edu/graduate/academic/iisphd.html%5B/url%5D">http://www.northwestern.edu/graduate/academic/iisphd.html</a></p>
<p>Nevertheless, obviously dual-master's degrees are far more amenable than combining anything with a PhD. A wide variety of dual master's degrees programs are available. </p>
<p>For example, an MBA/MS in any engineering (except nuclear) from MIT
<a href="http://lfmsdm.mit.edu/%5B/url%5D">http://lfmsdm.mit.edu/</a></p>
<p>An MBA/Master's in Engineering Management from Northwestern
<a href="http://www.kellogg.northwestern.edu/mmm/%5B/url%5D">http://www.kellogg.northwestern.edu/mmm/</a></p>
<p>An MBA/MSE in several kinds of Engineering from Michigan</p>
<p><a href="http://www.tmi.umich.edu/d3.htm%5B/url%5D">http://www.tmi.umich.edu/d3.htm</a></p>
<p>And obviously there are many many others.</p>
<p>Wow! Thanks for all the information. I asked about the MD/PhD because I am considering going into medical research. I wasn't sure whether I could earn a medical degree and a biology degree, which it now seems I can. :)</p>