Physician Directory

Physician Directory

Choose a Community Healthcare System Physician or Allied Health Professional!

We are pleased to offer personalized assistance to help you select a healthcare provider. Our free physician referral service is available Monday-Friday from 8:30 am to 5 pm by calling 219-836-3477 or toll-free 866-836-3477. Assistance is available in English and Spanish. You may leave a message during off hours.

John Kniaz, D.O.


John Kniaz

Accepts new patients. (Subject to change at any time. Please contact office to verify.)


Consultant in Gastroenterology
701 Superior Ave.
Suite G
Munster, IN 46321
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(219) 922-3040

Cardiac Surgery Associates
20201 S. Crawford Ave.
Olympia Fields, IL 60461
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(708) 747-4000

Medical/Graduate School:

Philadelphia College of Osteopathic Medicine


St. Michaels Medical Center


St. Michaels Medical Center




Community Hospital
901 MacArthur Blvd.
Munster, IN 46321
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St. Catherine Hospital
4321 Fir Street
East Chicago, IN 46312
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Medical Interests
and Procedures:

Flex Sig
Liver Disease
Osteopathic Medicine
Weight Management

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All information you provide by telephone for physician referral is considered confidential and will not be provided to any third parties. This physician referral is a free service. Referrals are made based on your individual needs and we use a rotational selection process to match physicians to your needs. All physicians who have chosen to participate are in good standing on medical staff of our hospitals and have indicated they are accepting new patients. Priority for physician referrals is given to those physicians who are employed by our Hospitals.