Dr. Timothy C. Oskin

Born and raised in Chicago, Dr. Ranan Mendelsberg earned his B.S. and M.D. degrees from the University of Illinois at Chicago. After completing his residency in general surgery at Los Angeles County + University of Southern California Medical Center, Dr. Mendelsberg spent two years at the University of Oklahoma pursuing his fellowship in vascular surgery. During his training, Dr. Mendelsberg studied cutting edge minimally invasive endovascular and open surgical techniques, used to treat the full spectrum of vascular disease. A member of the AOA (Alpha Omega Alpha) Honor Society and recipient of multiple teaching awards by medical students, Dr. Mendelsberg has been recognized for his academic achievements.Dr. Mendelsberg’s broad surgical training allows for an individualized approach to patient care. He specializes in all aspects of arterial and venous pathology, including the following:— peripheral arterial disease (PAD)— limb salvage— dialysis access— aortic and peripheral arterial aneurysmal disease (AAA)— aortic dissection— carotid artery disease and stroke prevention treatment— deep venous thrombosis (DVT) and pulmonary embolism (PE)— vascular trauma— chronic venous insufficiency and varicose veins— mesenteric ischemia— thoracic outlet syndrome— lymphedemaDuring his rare free time, Dr. Mendelsberg can be found actively engaged with his wife and three children, playing a pick-up game of basketball with his friends, or tinkering with endless household projects. Dr. Mendelsberg is rated as an Advanced provider by MediFind in the treatment of Splenic Infarction. His top areas of expertise are Gangrene, Venous Insufficiency, Stasis Dermatitis and Ulcers, Carotid Artery Surgery, and Aneurysm Repair.

Dr. Sarah Shaw earned her medical degree while attending West Virginia School of Osteopathic Medicine in Lewisburg. She went on to complete her general surgery osteopathic residency through the Geisinger Health System in Wilkes-Barre, Pa., and her surgical critical care fellowship through Christiana Care Health System in Newark, Del. She is board-certified in general surgery.Dr. Shaw has worked in the areas of trauma and acute care surgery since 2021. She is a Fellow of the American College of Surgeons and a member of the American College of Osteopathic Surgeons, Eastern Association for the Surgery of Trauma and Society of Critical Care Medicine. When not in the office or operating room, Dr. Shaw enjoys rock climbing, hiking, traveling and relaxing with a good book. Dr. Shaw is rated as an Advanced provider by MediFind in the treatment of Splenic Infarction. Her top areas of expertise are Ogilvie Syndrome, Delirium, Hypovolemic Shock, Gastrointestinal Perforation, and Hernia Surgery.

Melissa Kirkwood is a General Surgeon and a Vascular Surgeon in Dallas, Texas. Dr. Kirkwood is rated as a Distinguished provider by MediFind in the treatment of Splenic Infarction. Her top areas of expertise are Thoracic Aortic Aneurysm, Peripheral Artery Disease, Abdominal Aortic Aneurysm (AAA), Stent Placement, and Carotid Artery Surgery.