Commonwealth Medical Physician Group is a practice of physicians board-certified in Internal Medicine.

We provide comprehensive primary care services to adults of all ages.

Our physicians are on staff at Amita Health-Saint Joseph Hospital, Chicago, which is affiliated with the University of Illinois, Chicago College of Medicine, as well as with Weiss Memorial Hospital and Kindred Lake Shore Hospital. Our affiliations with these hospitals provide us with access to the resources of one of the finest medical networks in the nation.


Our Physicians

Todd Grendon, M.D.

Alam Khan, M.D.

Bruce A. Blacker, M.D.


To make an appointment or for more information, please call: (773) 472-5803


The languages spoken by staff and/or doctors include: Spanish, Tagalog, Hindi, Urdu, Cantonese and Mandarin.


Our practice accepts Medicare assignment, Blue Shield, and a wide range of insurance plans. If you are not sure that we accept your insurance, please call our office.

Our Hours

Office visits are by appointment only. Our office is open

Monday–Friday 8:30 AM–
5:00 PM

Saturday 8:30 AM–1:30 PM


Our office is closed on:

  • Memorial Day
  • Independence Day
  • Labor Day
  • Thanksgiving
  • Christmas 
  • New Year’s