Not impossible, but be prepared to interview like you’re trying to get into residency again (which it is actually - 2 yr independent residency), and to match far down your list.
The 2 residents from our program who wanted IR, from a non-ESIR program, matched at their last ranked programs (lists into the double digits).
At the same time you’ll watch your classmates doing other DR fellowships interview at a handful of places, all of which will be Brand Name programs, and match at their top choice (or region they desire) or get sign a contract the same day if they’re outside the match (DR fellowships are a buyers market). Fun.