Physician Detail
John Onufer

John Onufer, M.D.


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Board Certification(s)

Clinical Cardiac Electrophysiology, Cardiovascular Disease, Internal Medicine


Medical School

Washington University School of Medicine, St. Louis, Missouri


Washington University School of Medicine


Clinical Electrophysiology Fellowship: Barnes-Jewish Hospital
Clinical Cardiology Fellowship: Barnes-Jewish Hospital

Location 1

1632 W Central Road
Arlington Heights IL 60005
Phone: 847-618-2500
Fax: 847-253-8474

Location 2

880 W Central Road
Suite 7100
Arlington Heights IL 60005
Phone: 847-392-7810
Fax: 847-392-7834

Primary Specialty


Additional Specialties

Clinical Cardiac Electrophysiology



Chicago’s Top Cardiologists list includes two Northwest Community Healthcare (NCH) doctors

Two Northwest Community Healthcare (NCH) physicians have been named to the 2018 “Chicago’s Top Cardiologists” list published by Chicago Magazine. 

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The true, ‘heart’ facts about AFib

For many people, particularly those aged 65 and older, atrial fibrillation (AFib) can lead to debilitating issues such as heart failure or stroke. Learn about this type of heart arrhythmia from John Onufer, M.D., FACC, FHRS.

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Don's story: A reversal of fortune

In a year which we saw the Cubs reverse the curse, Don Grossnickle credits his NCH care team for helping reverse his diagnosis of congestive heart failure.

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NCH Heart & Vascular Specialists adds cardiovascular electrophysiologist

Northwest Community Healthcare's Heart & Vascular Specialists welcomes John Onufer, M.D., a board-certified cardiovascular electrophysiologist.

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