John Guynan, MD
About John Guynan, MD
Board-Certified Interventional Radiologist | Embolization Specialist
Dr. John F. Guynan is a highly experienced interventional radiologist with over 20 years of clinical expertise in the Omaha metro area. A proud graduate of the University of Nebraska College of Medicine, Dr. Guynan has dedicated his career to the cutting edge of image-guided medicine, moving beyond traditional diagnostics to provide life-changing, minimally invasive treatments.
At MIC Imaging & Procedure Center, Dr. Guynan specializes in Hemorrhoid Artery Embolization (HAE), a modern, non-surgical alternative to traditional hemorrhoid surgery. By utilizing his deep expertise in advanced imaging—including CT and MRI—Dr. Guynan precisely targets the vascular source of internal hemorrhoids. This "no-cut" approach allows him to treat chronic bleeding and discomfort through a tiny pinhole access point, offering patients a path to relief without the pain or long recovery times associated with a hospital-based hemorrhoidectomy.
Dr. Guynan’s philosophy centers on "precision without trauma." Whether he is managing complex tumor treatments or providing rapid relief for hemorrhoidal disease, his goal is to get Omaha patients back to their daily lives as quickly and comfortably as possible.
Education: University of Nebraska College of Medicine (MD)
Specialties: Hemorrhoid Artery Embolization (HAE), Interventional Oncology, and Advanced Vascular Imaging.
Conditions Treated
Dr John Guynan, MD treats patients suffering from Hemorrhoids and related conditions such as Internal Hemorrhoids, External Hemorrhoids, Chronic Hemorrhoids, Rectal Bleeding, Anal Swelling.
Treatments Offered
- Hemorrhoid Artery Embolization
- Hemorrhoid Banding
- Hemorrhoidectomy
- Sclerotherapy
- Infrared Coagulation