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Dr. Johnston graduated from the Harvard Medical School in 1998. Dr. Johnston works in Huntley, IL and 5 other locations and specializes in Cardiologist. Dr. Johnston is affiliated with Central DuPage Hospital, Northwestern Lake Forest Hospital and Northwestern Memorial Hospital.


Explains conditions and treatments
Takes time to answer my questions
Provides follow-up as needed

Based on patient feedback. Read the reviews


Dr. Johnston's Rating
20 Ratings with 1 Review
Patient Perspective
5.0 Explains conditions and treatments
5.0 Takes time to answer my questions
5.0 Provides follow-up as needed
Office Rating
Showing ratings for:
10370 Haligus Rd Ste 200, Huntley, IL, 60142
n/a Average office wait time
n/a Office cleanliness
n/a Courteous staff
n/a Scheduling flexibility
10370 Haligus Rd Ste 200
Huntley, IL, 60142
Showing 1-1 of 1 review
"Dr. Johnston went over my diagnosis with me and spent all the time I needed to answer my questions in regards to the surgery I needed. Am currently waiting to schedule my surgery with Dr. Johnston and his team. The Dr. and his staff are very quick to respond to questions and concerns."
  • January 3, 2024


10370 Haligus Rd Ste 200
Huntley, IL, 60142
25 N Winfield Rd Ste 201
Winfield, IL, 60190
25 N Winfield Rd Ste 202
Winfield, IL, 60190
4309 W Medical Center Dr Ste A200
McHenry, IL, 60050
1000 N Westmoreland Rd Pavilion B, Level 1
Lake Forest, IL, 60045


  • Adult Congenital Surgery
  • Aortic Aneurysm
  • Aortic Valve Surgery
  • Bicuspid Aortic Valve Disease
  • Coronary Artery Bypass Surgery
  • Minimally Invasive Aortic Valve Replacement
  • Mitral Valve Repair
  • Tricuspid Valve Disease


  • Cardiologist


Cleveland Clinic Foundation
Graduated 2008
Massachusetts General Hospital
Graduated 2005
Medical School
Harvard Medical School
Graduated 1998


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