Your not alone in this whole IM/Neuro decision. The combined programs seem really attractive because for just one more year, you can get that extra training to become more proficient in a broader range of disease and care. I like the idea of becoming an IM/Neuro doc because of the ability to take on more of the general care for patients with neurological disease and other comorbidities. After all, Neuro patients in general also have all of the same health problems as the rest of the population. ALso, in the hospital setting I am hoping that it will make me more competant in a neuro-ICU or stroke unit setting, being more on top of managing ventilators and monitoring electrolytes and such in addition to the neuro stuff.
Of course, I also received good advice froma mentor of mine that emphasized medicine as a team effort. As a neurologist, you can usually pick up the phone or page an IM doc or other specialist to consult or take over management for particular aspects of your patient that are outside of your area of expertise. There will be plenty of neuro out there to keep you busy without having to also be jack of all trades in medicine. And on the business end, most neuro practices will likely prefer to hire partners that stay focused on the neuro-side of the practice. There just may not be but so much time to dabble in general medicine by itsself once emmersed in a neuro practice. Rural settings an exception of course.
We'll see what happens though. I am just finishing 1st year, so have a long way to go. Either way, my own interests are more in neuro, but I like medicine for its management of severe or difficult inpatient populations.