All of our physicians are board certified in internal medicine and some have subspecialty boards as well. In addition, all of the doctors are on the attending staff of Northwestern Memorial Hospital and hold appointments at Northwestern University’s Feinberg School of Medicine. In 1999, the practice received the Dean's Award for Teaching Excellence.

General Internal Medicine
Joan C. Mullan, MD FACP
Michael D. Zielinski, MD FACP
Sean D. O’Connor, MD FACP
Colleen P. Doherty, MD
 

Endocrinology, Diabetes & Metabolism
Richard S. Crawford, MD