Dr. Gonzalo P. Obnial MD is a male vascular surgeon in Oakland, CA with over 18 years of experience. Dr. Obnial is affiliated with Bay Area Surgical Specialists in Walnut Creek, as well as John Muir Medical Center - Concord in Concord. The procedure that Dr. Obnial most frequently performs is Blood Vessel Ultrasound. He received $4,071 in payments from medical companies between 2014 and 2016, which is more than 88% of Vascular Surgeons and more than 88% of providers nationally. Dr. Obnial graduated in 2000. He is licensed to practice by the state board in Michigan (4301091346).