Dr. Robert P. Garvin

Dr. Ryer is a board-certified and fellowship-trained vascular surgeon. His clinical interests include management of thoracic and abdominal aneurysms, carotid stenting and endarterectomy, stenting of the lower extremities and venous disease management. Dr. Ryer earned his medical degree from Temple University. He completed his residency at NewYork-Presbyterian Hospital/Weill Cornell Medical Center, and his fellowship in vascular surgery at Mayo Clinic, Rochester. Dr. Ryer is certified by the American Board of Surgery in surgery and vascular surgery. Dr. Ryer is rated as a Distinguished provider by MediFind in the treatment of End-Stage Renal Disease (ESRD). His top areas of expertise are Abdominal Aortic Aneurysm (AAA), Thoracic Aortic Aneurysm, Peripheral Artery Disease, Aneurysm Repair, and Stent Placement.

Jeremy Irvan, MD, is a board-certified and fellowship-trained vascular surgeon. He treats adults with peripheral artery disease, carotid artery disease, aortic aneurysmal disease and varicose veins. He also assists with maintenance of arterial venous fistula.|Dr. Irvan earned his medical degree from The University of Arkansas in Fayetteville. After medical school, he completed a residency at The University of Oklahoma College of Medicine in Oklahoma City. He followed that with a fellowship in vascular surgery at Geisinger Medical Center in Danville.|“I never expected to become a vascular surgeon,” he says. “I always thought I would be a family medicine doctor. It’s all I was exposed to growing up. However, when I completed my rotation in vascular surgery, I knew this was the path for me.”|Originally from rural southwest Arkansas, he came to Geisinger after matching into a vascular surgery fellowship. “I was so impressed with the department of vascular surgery and the beauty of central Pennsylvania,” he says. “When the opportunity to work at Geisinger Medical Center arose, I accepted.”|He adds, “I love my team here at Geisinger. We have a dynamic, talented, motivated group of vascular surgeons, vascular surgical fellows and residents, nurse practitioners, physician assistants, vascular lab technologists, nursing staff and medical students. We all love treating our patients and seeing them achieve better health.”|In his spare time, he enjoys golf, cycling and lifting weights. Dr. Irvan is rated as an Advanced provider by MediFind in the treatment of End-Stage Renal Disease (ESRD). His top areas of expertise are Arterial Insufficiency, Peripheral Artery Disease, Mesenteric Artery Ischemia, and End-Stage Renal Disease (ESRD).

Brian Marien is a Vascular Surgeon in Kingston, Pennsylvania. Dr. Marien is rated as a Distinguished provider by MediFind in the treatment of End-Stage Renal Disease (ESRD). His top areas of expertise are Carotid Artery Disease, Arterial Embolism, Peptic Ulcer, End-Stage Renal Disease (ESRD), and Carotid Artery Surgery.