John E. Aruny, MD    President
John E. Aruny, MD
Co-Director, Vascular & Interventional Radiology
Yale University School of Medicine
New Haven, Connecticut


Lok Treasurer
John F. Lucas, III, MD
Greenwood, Mississippi

Dr. Lucas is a general surgeon who practices in Greenwood Mississippi in the office originally used by his father and grandfather. He received his medical degree and completed his surgical residency at Duke University. Dr. Lucas is a Fellow of the American College of Surgeons and a member of the Society of Vascular Surgery. He is board certified in general surgery and has been performing dialysis access surgery for 30 years. Since 2000 he has been passionate about dialysis access with a primary fistula rate of over 90%. Dr. Lucas has the largest number of dialysis accesses recorded in the VQI database and is the only physician participating as an individual.

Marc H. Glickman Secretary
Dirk M. Hentschel, MD
Interventional Nephrology
Cambridge, Massachusetts

Dirk Hentschel is Director of Interventional Nephrology, Brigham and Women’s Hospital (BWH), and Assistant Professor of Medicine, Harvard Medical School. Dr. Hentschel received his medical degree from the Charité - University Medicine Berlin. After internal medicine residency at Montefiore Medical Center, The Bronx, NY, and nephrology fellowship at BWH and Massachusetts General Hospital in Boston, he trained in interventional nephrology with Thomas Vesely, MD, and Steven Bander, MD, in St. Louis. He is member of the Clinical Practice Committee of the American Society for Diagnostic and Interventional Nephrology, and the Interventional Nephrology Advisory Group for the American Society of Nephrology.

Jeffrey H. Lawson Immediate Past President
Jeffrey H. Lawson, MD, PhD
Vascular Surgery
Durham, North Carolina

Dr. Lawson received his MD and Ph.D. (Cell and Molecular Biology) from the University of Vermont and then completed his residency in General and Thoracic surgery and a fellowship in Vascular Surgery at Duke University. Dr. Lawson is currently Professor of Surgery and Pathology at Duke, where he is also Director of the Vascular Research Laboratory, Medical Director of Clinical Research Unit within the Department, Program Director of the General Surgery Resident Research Program and Director of Clinical Trials in Vascular Surgery. Dr. Lawson is on the Editorial Board of the Journal of Vascular Access and serves as a reviewer for numerous hemostasis, vascular, and surgical journals. He has authored over 200 journal articles and abstracts on the topics of hemostasis and vascular surgery, and lectures on these topics both nationally and internationally. Dr. Lawson is a cofounder and board member for the Vascular Access Society of the Americas and his clinical and basic science research programs are funded by the NIH, DOD and various biotechnology companies.

Board of Directors

   Shawn Gage PA-C
Medical Affairs, Clinical
Durham, North Carolina

   Mr. Gage received his B.S. in Health Sciences and designation as Physician Assistant from Butler University in Indianapolis, IN, and he completed a 2-year residency in General Surgery at Duke University Medical Center in Durham, NC. Prior to this, Gage got his start in medicine as a nurse’s aide, and then progressed through the ranks of emergency medicine as an EMT and then Paramedic while in Indianapolis. Following completion of residency, Mr. Gage was Senior Vascular PA and practiced at the top of his scope for 14 years within the Division of Vascular Surgery at Duke University. While at Duke Mr. Gage was active in education and held academic appointments as Director and Associate Director of the PA Surgical Residency Program and continues to function as Adjunct Instructor for the Duke University PA Program. Gage has held board positions for the Association of PAs in Cardiac, Vascular and Thoracic surgery and is a member of the Society for Vascular Surgery.

Mitchell Henry, MD
General, Vascular & Transplant Surgery

   Judy Geissler, DNP, APNP, FNP-BC, CNN
Vascular Access Advance Practice Provider (Nurse Practitioner)
Medical College of Wisconsin


Ozaki William (Tip) Jennings, MD
General Surgery

Charles Kim    Charles Y. Kim, MD, FSIR
Interventional Radiology
Durham, NC

   Charles Kim is the Chief of Interventional Radiology and Associate Professor of Radiology at Duke University Medical Center. After obtaining his medical degree from Columbia University, he completed his radiologic training at Duke University. His clinical and research interests are broad and include hemodialysis access maintenance and vascular access. His particular interests in this arena include the development of advanced MRI and CT imaging technology for the venous system, studies analyzing and comparing interventions for managing hemodialysis and venous access, as well as development of advanced techniques and strategies for managing patients with chronic venous occlusions. As the Director of the Duke Interventional Radiology Translational Research Laboratory, he has led numerous funded studies exploring novel percutaneous interventions in animal models.

Ozaki C. Keith Ozaki, MD

Dr. Charles Keith Ozaki is a vascular surgeon and the director of vascular surgery research at Brigham and Women’s Hospital (BWH). In addition, he is the John A. Mannick Professor of Surgery at Harvard Medical School. Dr. Ozaki earned his medical degree from Duke University School of Medicine. He completed a general surgery residency through the Deaconess/Harvard Surgical Service (now Beth Israel Deaconess Medical Center) and later completed a fellowship in vascular surgery at the University of Michigan Health System. He is board certified in general surgery and vascular surgery. He currently leads the Ozaki Basic Vascular Biology Lab within the Division of Vascular and Endovascular Surgery at BWH, which aims to delineate how physical forces alter the morphology of the blood vessel wall. Recent investigations have focused on inflammatory and adipose-driven mechanisms. His clinical interests include arterial aneurysm, cerebrovascular disease and wound healing. He has authored over 90 peer-reviewed publications.

Patricia Rosenberry, MS, BSN

Lok Prabir Roy-Chaudhury, MBBS, MSc, PhD, FRCP (Edin), FACP, FASN, FASDIN

Prabir Roy-Chaudhury MD, PhD, FRCP (Edin), is a professor of medicine at the University of Arizona Health Sciences. He is also the director of the Division of Nephrology and the director of the Arizona Kidney and Vascular Center at the UA College of Medicine – Tucson. After graduating from the Armed Forces Medical College, in Pune, India, he trained in internal medicine and nephrology at the University of Aberdeen in Scotland, and at the Beth Israel Hospital/Harvard Medical School in Boston. In addition to being an active transplant nephrologist, Dr. Roy-Chaudhury is a member of the UA BIO5 Institute, where his main research interest is in uremic vascular biology (including both dialysis vascular access dysfunction and cardiovascular disease in kidney disease patients). He explores these studies through the Arizona Kidney and Vascular Center, which is a comprehensive, integrated, multi-disciplinary translational research program that includes basic science, clinical science and patient care components. This translational research program is funded through the National Institutes of Health, the Veterans Administration research program and through industry grants. Dr. Roy-Chaudhury has received national and international awards, has published over 150 peer reviewed manuscripts and is a sought after invited speaker, both nationally and internationally.

Lok Aris Q. Urbanes, MD
Nephrology/Interventional Nephrology

Aris Urbanes has been actively involved in dialysis access care as an intervention nephrologist for the past 14 years. Since joining Lifeline Vascular Access full-time in 2005, he has had a leadership role in physician provider education and training and the Quality and Safety program including outcomes measurement and monitoring. He is also involved in strategy and business operations and governmental regulatory affairs as they impact the clinical operations of 77 free-standing out-patient vascular and access centers and 250 licensed independent providers. He served as President of ASDIN from 2012-2014 and had been on the Executive Council for 10 years.

Lok Yael Vin, MD, MPH
Interventional Radiology/Surgery
Boston, Massachusetts

Vin completed General Surgery training at Beth Israel Deaconess Medical Center in Boston and then went on to train and work in Interventional Radiology at Memorial Sloan Kettering Cancer Center in NY. From 2008, clinical practice has focused only on dialysis access, combining both sets of skills- the surgical and percutaneous. Medical Director of the Beth Israel Deaconess Medical Center ambulatory access center. Currently involved in all aspects of access creation and maintenance. Engaged in teaching and education. Holds a Master of Public Health from the Harvard School of public Health with an interest in clinical research in the field.

Jaime H. Velez, MD International Representative
Jaime H. Velez, MD
General and Vascular Surgery
Cali, Colombia

Dr. Velez was born in Cali, Colombia. He studied medicine in Universidad del Valle Cali, Colombia and obtained his general surgery and vascular surgery degrees in Hospital Militar Central Universidad, Nueva Granada Bogotá Colombia

He has been working as a vascular surgeon in Cali, Colombia, with extensive experience with professional collaboration with vascular surgeons and other physician specialists in the United States and Latin America.

He has dedicated much of his medical practice to the construction and maintenance of vascular access for renal patients performing approximately 800 procedures per year. These procedures are part of a program created and conducted by Dr. Velez and are currently being implemented at Clinica Amiga in Cali, Colombia. This is one of the leading programs in Latin America and serves as an academic training ground for vascular surgeons from other parts of the continent.

During the last six years, he has been participating as a principal investigator in medical research that focuses on “first-in-man”. In the vascular access field, he has done research in biological grafts and is now currently running a successful study in Colombia using a promising device to create percutaneous AV fistulas.

Executive Director
Brian Doty, CMP
Vascular Access Society of the Americas

446 East High Street, Suite 10
Lexington, KY 40507
(859) 977-7457
Fax: (859) 271-0607