Not to side-track or anything, but does the reverse work? Doing an osteopathic residency and getting allopathic certification?
The reason this is less clear is because DOs can sit for both sets of boards in med school, while MDs can't.
To the OP, I have heard from a few 4th years that you can't get boarded osteo if you do an allo residency. Still should verify this though.
The board certification exams have nothing to do with national board exams (COMLEX/USMLE) - it has to do with the specialty board that oversees your training in your field.
For example, if you complete an AOA accredited internship and residency in EM, you are eligible to sit for the AOBEM certification exams and become board certified in EM by them.
If you complete an ACGME accredited Emergency medicine residency, you are eligible to sit for the ABEM certification exams.
An Osteopathic physician can, however, should he choose, petition the AOA and AOBEM to accept the ACGME approved EM residency as "equivalent" to an AOA accredited residency - then he would be eligible to sit for the AOBEM certification exams. This would also require that he have completed an internship or received the Resolution 42 waiver. The reverse is not true (complete AOA residency and petition to sit for ABEM exam), as far as I am aware.
Why would one want to do something as crazy as this? I don't know. If the physician were to wish to enter an AOA accredited fellowship, for example, there might be a requirement of an AOA accredited residency. Also, if the physician were interested in serving on any national Osteopathic boards or holding office in the AOA, I think there is a requirement that he have completed an AOA residency (or the "equivalent"). I'm not sure if only having a Resolution 42 waiver would count for these requirements, so take this info with a shaker of salt. More specific information can be found in the AOA bylaws, if you really care to read through that drek...
Seems to me that it is just more money to pay for certification exams and more CME required to keep up 2 separate certifications, one or the other of which is redundant and un-necessary.
Hope this info helps.
jd