Dr. Hong Jun “Francisco” Yun, M.D., earned his medical degree at the Chicago Medical School, and completed his residency at Thomas Jefferson University Hospital. He then finished his fellowships in cardiovascular disease and interventional cardiology at Beaumont Hospital. A triple board-certified interventionalist and former Chief Fellow, Dr. Yun specializes in high-risk PCI, coronary atherectomy, and percutaneous heart pump insertions. Joining HCCI, he holds additional board certifications across four distinct non-invasive imaging modalities.
Dr. Hong Jun “Francisco” Yun, M.D., earned his medical degree at the Chicago Medical School, and completed his residency at Thomas Jefferson University Hospital. He then finished his fellowships in cardiovascular disease and interventional cardiology at Beaumont Hospital. A triple board-certified interventionalist and former Chief Fellow, Dr. Yun specializes in high-risk PCI, coronary atherectomy, and percutaneous heart pump insertions. Joining HCCI, he holds additional board certifications across four distinct non-invasive imaging modalities.
The reviews listed below were collected independently of Heart Care Centers of Illinois through rater8. Each review represents an authentic and verified patient experience.
He took the time to talk with me about what is going on and made good suggestions about what I could do to improve my health. He was excellent!
(3 days ago)
Oct-2026
Thanks for answering all my questions.
(4 days ago)
Oct-2026
For 15 years I had nine different ailments ranging from joint pain to heart palpitations to horrible GI issues that kept getting worse each year I kept asking the doctors could the statins be causing the problem categorically they said every year that no it could not be the problem finally I switched doctors to Dr Yun he listened to what I was going through and then he said something very profound... he said you shouldn't have to be in pain every day of your life . This is something that not one other single doctor said to me . So he said let's try a different approach he changed it into a lower dose and all of a sudden things got marginally better he finally said get off everything completely and within 36 hours everything disappeared. Currently he has switched me to a different non-statin which is taking care of everything perfectly. What I can tell you about him is that he listens, he cares, and he's a wonderful doctor. I highly recommend him. He literally brought me back to life
(1 week ago)
Sep-2026
Friendly, professional, most understanding, knowledgeable.
(2 weeks ago)
Sep-2026
Very thorough and his explanations and comments were very easy to understand.
(2 weeks ago)
Sep-2026
Great down to earth Doctor that listens to your concerns . Hands down a great doctor!!!
(3 weeks ago)
Sep-2026
Dr Hun never makes you feel rushed, he takes time to explain things to you the patient in layman terms.
(3 weeks ago)
Sep-2026
Great in all he does
(3 weeks ago)
Sep-2026
Could have been higher but was disappointed with the 90 minute wait.
(3 weeks ago)
Sep-2026
Takes time, and explains everything. Very approachable.
(3 weeks ago)
Sep-2026
HCCI: Mokena Clinic
10260 West 191st Street Suite 102 Mokena, IL 60448
Dr. Hong Jun “Francisco” Yun, M.D., is Interventional Cardiologist with Heart Care Centers of Illinois. He is triple-board certified in Interventional Cardiology, Cardiovascular Disease and Internal Medicine.
He is skilled in performing cardiac catheterizations from both the radial (wrist) and femoral approach (groin). He has extensive experience with all aspects of Interventional Cardiology including balloon angioplasty with stenting, high-risk PCI, coronary atherectomy, and insertion of percutaneous heart pumps (i.e. intra-aortic balloon pumps and impella).
In addition, he is experienced in general cardiology and is board-certified in four non-invasive imaging modalities: 1) Echocardiography including performing trans-esophageal echos, 2) Nuclear stress tests, 3) Cardiac CT, and 4) Vascular ultrasounds.
He graduated from Northwestern University and received his medical degree from the Chicago Medical School. He completed his Internal Medicine training at Thomas Jefferson University Hospital in Philadelphia, PA. He completed both his Cardiovascular Disease and Interventional Cardiology training at Beaumont Hospital in Royal Oak, MI where he served as Chief Interventional Cardiology Fellow.
He is a native to the Southwest suburbs of Chicago and is glad to be back to serve the community he grew up in. He is married and has two children. He enjoys playing tennis, golf, and traveling with his family.
He took the time to talk with me about what is going on and made good suggestions about what I could do to improve my health. He was excellent!
Thanks for answering all my questions.
For 15 years I had nine different ailments ranging from joint pain to heart palpitations to horrible GI issues that kept getting worse each year I kept asking the doctors could the statins be causing the problem categorically they said every year that no it could not be the problem finally I switched doctors to Dr Yun he listened to what I was going through and then he said something very profound... he said you shouldn't have to be in pain every day of your life . This is something that not one other single doctor said to me . So he said let's try a different approach he changed it into a lower dose and all of a sudden things got marginally better he finally said get off everything completely and within 36 hours everything disappeared. Currently he has switched me to a different non-statin which is taking care of everything perfectly. What I can tell you about him is that he listens, he cares, and he's a wonderful doctor. I highly recommend him. He literally brought me back to life
Friendly, professional, most understanding, knowledgeable.
Very thorough and his explanations and comments were very easy to understand.
Great down to earth Doctor that listens to your concerns . Hands down a great doctor!!!
Dr Hun never makes you feel rushed, he takes time to explain things to you the patient in layman terms.
Great in all he does
Could have been higher but was disappointed with the 90 minute wait.
Takes time, and explains everything. Very approachable.