Dr. Mark Joseph Brennan, DO

Dr. Mark Brennan is a vascular surgeon who has been practicing for over three decades, bringing extensive experience to his surgical specialty. He earned his medical degree from Philadelphia College of Osteopathic Medicine, where he also completed his residency training. His osteopathic background provides him with a comprehensive approach to patient care that considers the whole person. Dr. Brennan speaks English and has dedicated 32 years to advancing surgical medicine.

Dr. Brennan practices at Wilson Medical Center in Johnson City, New York, where he focuses on vascular surgical procedures and chronic wound management. He specializes in wound debridement and chronic wound care, helping patients heal from complex wounds that require specialized attention. His expertise extends to treating conditions such as chronic kidney disease and managing complications like hypocalcemia. Patients have given Dr. Brennan an average rating of 3.5 out of 5 stars on Vitals.