Dr. Michael C. Madigan

Paul Collier is a Vascular Surgeon and a General Surgeon in Sewickley, Pennsylvania. Dr. Collier is rated as an Advanced provider by MediFind in the treatment of Superficial Thrombophlebitis. His top areas of expertise are Venous Insufficiency, Stasis Dermatitis and Ulcers, Varicose Veins, and Superficial Thrombophlebitis.

Dr. Michael Singh joined UPMC in 2012. He completed his medical degree and a general surgery residency at the SUNY School of Medicine at Buffalo. He completed a vascular surgery fellowship at the University of Massachusetts Medical Center. Dr. Singh is a fellow in the American College of Surgeons, Distinguished Fellow in the Society for Vascular Surgery and a Registered Physician in Vascular Interpretation. He is board-certified in both General and Vascular Surgery. Dr. Singh is the Chief of Surgical Services at UPMC Shadyside, Chief of Vascular Surgery at UPMC Shadyside and Co-director of the UPMC Heart and Vascular Institute Aortic Center.  He has received numerous patient care and teaching awards throughout his career, and has authored >80 peer reviewed publications. Since 2015, annually he has been selected as one of Pittsburgh's Best Doctors. Dr. Singh oversees several clinical trials, and many of those research projects focus on the treatment of complex aortic and iliac artery aneurysms, peripheral arterial occlusive disease and the treatment of chronic venous insufficiency. His areas of clinical expertise include the management of complex aortic aneurysms, aortic dissections, thoracic aortic aneurysms, venous insufficiency, thoracic outlet syndrome, arterial venous malformations, congenital venous anomalies and peripheral arterial occlusive disease. Dr. Singh is the Chief of Vascular Surgery at UPMC Shadyside and sees patients at UPMC Shadyside. LGBTQIA+ Affirming: This provider has completed training on how to create a safe, comfortable, and welcoming environment for LGBTQIA+ patients. This provider may or may not offer LGBTQIA+ specific medical or surgical care. Please ask when scheduling. Dr. Singh is rated as a Distinguished provider by MediFind in the treatment of Superficial Thrombophlebitis. His top areas of expertise are Thoracic Aortic Aneurysm, Varicose Veins, Abdominal Aortic Aneurysm (AAA), Stent Placement, and Thrombectomy.

James Tretter is a Vascular Surgeon in Johnstown, Pennsylvania. Dr. Tretter is rated as an Advanced provider by MediFind in the treatment of Superficial Thrombophlebitis. His top areas of expertise are Carotid Artery Disease, Abdominal Aortic Aneurysm (AAA), Arterial Embolism, Thoracic Aortic Aneurysm, and Carotid Artery Surgery. Dr. Tretter is currently accepting new patients.