Duemani Reddy, MD (photo by Jim Howe) Duemani Reddy, MD (photo by Jim Howe) Upstate neurosurgeon Upstate neurosurgeon Duemani Reddy, MD Duemani Reddy, MD, explains "deep brain stimulation," a procedure that implants electrodes in the brain to treat essential tremor or involuntary movements associated with Parkinson‘s disease, dystonia and other conditions., explains "deep brain stimulation," a procedure that implants electrodes in the brain to treat essential tremor or involuntary movements associated with Parkinson‘s disease, dystonia and other conditions.