Looking for Vascular Specialist in Koregaon Park, Viman Nagar, Pune ? Dr Santosh B Patil is the Best Endovascular Surgeon, Vascular Specialist in Koregaon Park, Kalyani Nagar, Viman Nagar, Vishrantwadi and Pune. What does a vascular specialist do? Vascular surgeons are specialists who are highly trained to treat diseases of the vascular system. Your blood vessels --arteries carrying oxygen-rich blood and veins carrying blood back to the heart -- are the roadways of your circulatory system. Without smoothly flowing blood, your body cannot function.