rayan headshot

Dr. Sunil Rayan

Dr. Sunil Rayan has been a practicing vascular surgeon in the San Diego area since 2004. He received his undergraduate degree in Molecular and Cellular Biology at University of California, Berkeley in 1991. He then graduated medical school at Hahnemann/Drexel University in Philadelphia. From 1996-2002he was fortunate to train in General Surgery at Harvard University’s Beth Israel Deaconess Medical Center in Boston during which time he did a year of research at Harvard’s Center for Minimally Invasive Surgery. He then matched at his top choice nationwide at Emory University… Read More

varicose veins

Varicose Veins

Large bulging veins in the legs that can cause many different types of symptoms. They have one-way valves that help keep blood flowing in the proper direction. If these valves stop functioning the way they are supposed to, blood can flow backwards and pool in the vein, causing it to stretch.

person having a headache

Stroke Prevention

The blood supply to a part of your brain is suddenly interrupted. There are many different types of strokes such as Ischemic, Hemorrhagic, Transient Ischemic Attack, etc.


Peripheral Arterial Disease

PAD is a chronic disease in which plaque builds up in the arteries to the legs. This buildup typically occurs gradually. If allowed to progress, blood flow in that artery can become limited or blocked all together.


Deep Vein Thrombosis

Occurs when your blood thickens in a clump that becomes solid, forming a clot. Most deep vein clots occur in the lower leg or thigh. If the vein swells, the condition is called thrombophlebitis. A deep vein thrombosis can break loose and cause a serious problem in the lung.

abdominal aortic aneurysm


An aneurysm is a bulge or ballooning in a blood vessel that occurs in the wall of a major blood vessel also known as an aorta. The aorta carries blood from your heart to your body.. It can leak or rupture, causing bleeding to occur. Most often a tear in the inner layer of the wall of the aorta can waken the wall and increase the risk of rupture. A ruptured aneurysm can quickly become a life-threatening medical treatment.

dialysis system

Hemodialysis Access

Hemodialysis is a treatment that removes wastes and extra fluid from your blood when your kidneys have failed.