Dr. Beaver
Dr. Butcher
Dr. DeKay, DDS
Dr. & Dr. Doctor (real married doctors from Norwalk, CT)
Dr. E. Ville
Dr. Gass (allegedly a real anesthesiologist)
Dr. Gutstein
Dr. Hanus
Dr. Hurt (real pediatrician in Saginaw, MI)
Dr. Hymen
Dr. Kauff
Dr. Look (real opthalmologist in Hawaii)
Dr. Payne (plastic surgeon in Sandusky, OH)
Dr. Pullham
Dr. Surgeon (another real doctor from Stamford, CT)
http://www.ethanwiner.com/funnames.html