About Chicago Vein Institute

Trusted by Chicago's Top Referring Physicians


Chicago Vein Institute believes everyone deserves to enjoy healthy, beautiful, pain free legs. Led by Dr. Mensur O. Sunje, we have built a reputation for being Chicago’s hometown vein care experts. With a minimally invasive approach to restorative vein treatment; including Endovenous Laser Ablation (EVLA), Ambulatory Phlebectomy, Ultrasound-Guided and Surface Sclerotherapy, Elastic Compression Stockings and wound care for venous ulcers, we perform more than 11,000 vein-related procedures annually.

Why Patients Choose
Chicago Vein Institute


Our board-certified vein care specialists ensure you will always be treated by the best and with the latest and safest minimally invasive techniques. With state of the art equipment, facilities, and even free parking, you’re always in great hands.


Beyond our caring and compassionate multi-lingual staff, convenient daytime and evening hours, the entire Chicago Vein Institute family prides itself on our ability to deliver the highest quality care while educating patients on vein health.


Every year our specialists perform well over 1,500 EVLAs, 800 phlebectomies and 1,600 schlerotherapy procedures. All in the convenience of our two modern and elegant offices located in the heart of North Chicago and Downtown Chicago.

Chicago Vein Institute
Medical Team

Mensur O. Sunje, MD, MS

Medical Director

Danish Haque, MD

Board-Certified Physician

Cecilia Lee, PA

Physicians Assistant

Lauren Fishback, NP

Nurse Practitioner

Mensur O. Sunje, MD, MS

Being an active member of the American College of Phlebology, the American Medical Association, Société Francaise de Phlebologie and the European Venous Forum, gives Dr. Sunje further insight into advances in the field of Phlebology and access to advanced education and training.

Dr. Mensur O. Sunje is a board – certified phlebologist, which means he specializes in disorders related to the veins. He’s known around the world and completed his residency at Christ Hospital in Oak Lawn.

Dr. Mensur O. Sunje, M.D., M.S., is on staff at several Chicagoland hospitals and has dedicated his life to understanding vein disease. As a result, he is a vein disease expert who has the experience to successfully diagnose and treat both medical and cosmetic vein issues.

Danish Haque, MD

Dr. Danish Haque is a board-certified physician, who joined Chicago Vein Institute in 2016. In addition, Dr. Haque is a founding partner of Emergency Associates, S.C. at Swedish Covenant Hospital in Chicago where he is also the clinical instructor of ED Ultrasound. Dr. Haque received his medical degree from Rush Medical College in 1998 and completed his internship at Illinois Masonic Medical Center in Chicago. He is a proud and active member of the American Medical Association, American College of Phlebology and American College of Emergency Medicine. Dr. Haque is passionate about providing the highest level of comprehensive vein treatment and care to our patients suffering from vein disease in Chicago.


2333 W. Irving Park Road
Chicago, IL 60618


*Free Parking Behind Building

233 E. Erie Street Ste. 608
Chicago, IL 60611


**Metered Street & Garage Parking

Chicago Vein Institute is a practice solely dedicated to the diagnosis and treatment of vein diseases. The experts at CVI perform the latest and most effective treatments for painful varicose veins, spider veins, and other vein-related disorders. CVI offers minimally invasive treatment options, including Endovenous Laser Ablation (EVLA), Ambulatory Phlebectomy, Ultrasound-Guided Sclerotherapy, Surface Sclerotherapy, Elastic Compression Stockings and wound care for venous ulcers, performing more than 8,000 vein-related procedures annually. Visit our sister brand, Chicago Cosmetic Institute, offering a full array of medical spa services including CoolSculpting, Liposuction, Botox, chemical peels and more.

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