About Us

Welcome to the Internal Medicine practices of Suite 118, 680 N. Lake Shore Drive. We appreciate your interest in our office. All of us are board certified internists on the faculty at the Northwestern University Feinberg School of Medicine, and are proud of our reputations for providing high-quality medical care. Each of us practices separately, but we provide coverage for one another at certain times. You may wish to bookmark this website for future reference. No medical advice is provided on this site. The affiliated physicians of Suite 118 include:

• Mark C. Chien, M.D.
• Noel A. DeBacker, M.D.
• Charles D. Dillon, M.D.
• Andrew B. Repasy, M.D.
• Michael A. Ruchim, M.D.
• James H. Sipkins, M.D.

Each physician’s health insurance arrangements are detailed on the above links, along with other biographical information. Note that each physician participates in different insurance arrangements; if after reviewing the above information you have additional questions; our front desk staff can further explain your physician’s arrangements.