USA Vein Clinic Northbrook IL, a suburb of Chicago, is a patient-centered vein center offering multiple varicose vein and spider vein treatments. We are home to experienced vein specialist who give every patient personalized attention and individualized care.USA Vein Clinic Northbrook IL, a suburb of Chicago, is a patient-centered vein center offering multiple varicose vein and spider vein treatments. We are home to experienced vein specialist who gives every patient personalized attention and individualized care.