Our Team

The Center for Vein Care includes vascular surgeons, a PhD vascular physiologist, registered vascular technicians, physician assistants, nurse practitioners, and a full administration staff. Each member plays a role in making your care as comfortable, convenient and successful as possible. Our staff will provide you information on your disease and treatment options, manage your insurance claims and referrals, and schedule appointments smoothly and efficiently. 


Want to learn more?

For more information or to schedule an appointment, call (631) 444-VEIN (8346)



Team 2020
Our Team of Surgeons ( L to R) Drs. Antionos Gasparis, Lucyna S. Price, Jing Li, David S. Landau, Apostolos K. Tassiopoulos, George J. Koullias,  Angela Kokkosis, Mohsen Bannazadeh, Nicos Labropoulos, and Shang A. Loh. 



Antonios P. Gasparis, MD - The Center for Vein Care is led by Antonios P. Gasparis, MD. A board-certified vascular surgeon, Dr. Gasparis has been in practice for over 10 years. He is a leader in the field of venous disease recognized for his work as a clinician, researcher and educator. He is the founder and director of the Center for Vein Care since its inception in 2007. He addition to English, Dr Gasparis is also fluent in Greek.  

Mohsen Bannazadeh, MD - Assistant Professor of Surgery, is board certified in General Surgery and Vascular Surgery. He completed his training in vascular surgery at Mount Sinai Hospital in Manhattan, and joined our faculty in the Vascular Surgery Division in 2017. He is a specialist in treating venous conditions including varicose veins and venous insufficiency. In addition to English, he speaks Persian and Arabic.

Angela Kokkosis, MD - Fluent in Spanish and Greek, Dr. Kokkosis clinical interests are all areas of arterial and venous surgery and her special research interest is women with peripheral artery disease (PAD). She is an Assistant Professor of Surgery at Stony Brook University School of Medicine.

George Koulias, MD, PhD - Assistant Professor of Surgery, is board certified in General Surgery and Thoracic Surgery. His clinical interest are in all areas of arterial and venous surgery. 

David Landau, MD - Assistant Professor of Surgery, is board certified in both vascular surgery and general surgery. Dr. Landau received his MD from SUNY Upstate Medical Center in 1990 and joined our faculty in the Vascular Surgery Division in 2009. His clinical interest is in all areas of arterial and venous surgery, using both conventional surgical techniques.

Jing Li, MD - Assistant Professor of Surgery and board eligible vascular surgeon. Dr. Li is dedicated to providing patient-centered care for underserved populations and has experience with varied communities. She believes that multidisciplinary cooperation creates the most suitable healthcare approach in optimizing patients with vascular disease with the goal to transition them home with their family.  In addition to English, Dr. Li also speaks fluent Mandarin

Lucyna Price, MD - Assistant Professor of Surgery, board certified general surgeon, and board eligible vascular surgeon.  She is devoted to the lifelong care of her patients and their families from the prevention to the treatment of vascular disease. Dr. Price is dedicated to the highest level of vascular surgery, endovascular therapy, professional education, and clinical research. In addition to English, Dr. Price speaks fluent Polish and Spanish.  

Apostolos Tassiopoulos, MD - A Professor of Surgery at Stony Brook School of Medicine is board certified in both vascular surgery and general surgery. He serves as the department of surgery interim Chair, Chief of the Division of Vascular Surgery, Program Director of the Vascular Surgery Residency and the Surgical Skills Simulation Center in the Stony Brook School of Medicine and Co-Director of the Aortic Center. 


Vascular Physiologist

Nicos Labropoulos, PhD, RVT, is a Professor of Surgery and Radiology at Stony Brook and the Director of the Vascular Laboratory. He has a major interest in pathophysiology, diagnosis and treatment of vascular diseases. He has more than 200 publications, has been cited over 7000 times and he has given over 1000 presentations around the world. He has edited 5 vascular textbooks and has contributed over 55 book chapters on the diagnosis and management of vascular diseases. He is a co-founder of the International Vascular Foundation, of the Institute of Vascular Diseases and Venous Health Foundation. Dr. Labropoulos speaks English, Spanish, Portuguese, and Greek.


Physician Assistants and Nurse Practitioners

Kristy Stanfield
Physician Assistant

Krystal Esposito
Physician Assistant

Doreen Elitharp
Nurse Practitioner

Kristan Probeck
Nurse Practitioner

Tara Sweeney
Nurse Practitioner



Research Team


Giuseppe Caso, MD, PhD