2016-2017 Officers

Jack Work President
Jack Work, MD
Interventional Nephrology
Atlanta, Georgia
Jack Work, MD is Emeritus Professor of Medicine, and former Director of Interventional Nephrology at Emory University. He was the chairperson of the End-Stage Renal Disease Clinical Performance Measures QI Vascular Access Committee, a member of the National Vascular Access Improvement Initiative and Leadership group, and a member of CMS Dialysis Facility Compare Vascular Access Quality Expert panel. He was Co-Chair of the KDOQI Vascular Access 2006 Guidelines Work Group, a past president and founder member of the American Society of Diagnostic and Interventional Nephrology and a founder member of the Vascular Access Society of the Americas. He was chairman of the American Society of Nephrology Interventional Nephrology Advisory Group and a member of ASN Board of Advisors. His areas of interest include vascular access management, the biology of neointimal hyperplasia, vascular access surveillance techniques, and continuous flow peritoneal dialysis. Dr Work is on the Editorial Board of Journal of Vascular Access and servers as a reviewer for several journals. He has authored over 150 journal articles, book chapters, and abstracts.

Jeffery H. Lawson President-Elect
Jeffery 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.

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


Deborah J. Brouwer-Maier    Secretary
Deborah J. Brouwer-Maier RN, CNN
Nephrology Nursing
Lansdale, Pennsylvania

   Deborah Brouwer-Maier RN CNN has worked in all aspects of nephrology for 30 years. Debbie served as a Work Group Member: NKF KDOQI Vascular Access Guidelines (1997,2000, 2006) , National Vascular Access Improvement Initiative and FFBI. She received Gift of Life Small Hands, Big Heart (NKF of the Alleghenies, 2010) and American Nephrology Nurses’ Association Nephrology Nurse Educator (2007). Active member of ANNA and ASDIN. She frequently lectures on vascular access topics and has multiple publications. Her current role is Vascular Access Specialist with Fresenius Medical Care (Medical Office) and she also manages a pilot program for improved vascular access care outcomes with a team of eleven Vascular Access Case Managers.

Surendra Shenoy Immediate Past President
Surendra Shenoy, MD, PhD
Transplant & Vascular Access Surgery
St. Louis, Missouri

Dr. Surendra Shenoy is Professor of Surgery at the Washington University School of Medicine at St. Louis. He completed medical training and general surgery residency at the Kasturba Medical College in India. He was subsequently awarded a Ph.D. at the All India Institute of Medical Sciences, New Delhi for his research related to portal hypertension. He went on to specialize in abdominal organ transplantation surgery at the Washington University School of Medicine in St. Louis.

Dr. Shenoy is Director of the Living Donor Transplantation Program in the Section of Abdominal Organ Transplantation at Washington University School of Medicine in St. Louis. He is principal investigator for several clinical research projects related to abdominal organ transplantation. His research involves evaluation of novel methods of post transplant immune suppression. His clinical interests include optimizing living donor transplantation techniques and dialysis access surgery. He was instrumental in developing a novel open living donor nephrectomy technique called the “Mini Nephrectomy”.

Dr. Shenoy serves on committees related to the ‘Fistula First’ initiative and ESRD Networks to improve dialysis access care. He is a founder member and serves on the Board of VASA. He has authored over 75 scientific articles in peer reviewed medical journals and contributed several book chapters. He has been invited to present and discuss his work in transplantation and vascular access at many national and international meetings.

Board of Directors

Ingemar J. Davidson Ingemar J. Davidson, MD
Vascular & General Surgery
Dallas, Texas

Ingemar J.A. Davidson a native of Sweden graduated at the University of Gothenburg, Sweden. Dr. Davidson’s focus is organ transplantation, Dialysis Vascular Access in End Stage Renal Disease patients. He is Professor of Surgery, at the University of Texas Southwestern Medical Center Dallas, TX and Medical Director Parkland’s Vascular Access Clinic. He is a member of medical professional societies, such as the American College of Surgeons, American Medical Association, American Society of Transplant Surgeons and The Transplantation Society (International), Texas Transplantation Society (former president), and a past Board Member of Southwest Transplant Alliance (Organ Bank). Dr Davidson’s research and experience is reflected in books, peer reviewed publications and proceedings. He is a current or past Reviewer for Critical Care Medicine, Journal for the American Society of Nephrology, Clinical Transplantation, Kidney International, and Juvenile Diabetes Foundation-International. He is member of the Editorial Board of Journal of Vascular Access. He has directed postgraduate programs dedicated to Transplantation and Access for Dialysis most notably CiDA (Controversies in Dialysis Access)now at its 10th year. He is a requested lecturer at congresses and symposiums in the USA and worldwide, including team building strategies. Dr. Davidson initiated and maintains a development of several clinical activities, and a co-investigator for active NIH grant supported clinical dialysis access studies. You can learn more about and contact Dr. Davidson at or at

Marc H. Glickman 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.

Stephen Hohmann    Stephen Hohmann, MD, FACS

   Stephen E. Hohmann, MD, FACS is a board certified vascular surgeon and partner at Texas Vascular Associates. He practices at Baylor University Medical Center, Dallas, Texas and the Heart Hospital Baylor, Plano, Texas. He has a busy clinical practice, which includes dialysis access. He is the program director for the vascular surgery fellowship at Baylor in Dallas and is an assistant professor of surgery at Texas A&M Health Sciences. He obtained his medical degree from the University of California, San Diego. He completed his residency in general surgery and vascular surgery fellowship at Baylor University Medical Center, Dallas, Texas.

Janet Holland    Janet Holland
Garden Grove, California


Karl A. Illig Karl A. Illig, MD

Karl attended college at Harvard and medical school at Cornell, followed by residency and vascular surgical fellowship at the University of Rochester. Karl stayed on the faculty, achieving the rank of Professor and serving as program director and division chief from 2004 to 2011. He relocated to the University of South Florida in 2011, where he is currently director of vascular surgery and vice chair of surgery for faculty development and mentoring. His primary interests are complex AV access surgery and thoracic outlet syndrome. He has published over 100 peer-reviewed articles, 40 chapters, and two books, and prides himself on running one of the best training programs in the country.

David B. Leeser, MD David B. Leeser, MD

Dr. David Leeser is an Assistant Professor of Surgery in the Division of Transplant Surgery at the University Of Maryland School Of Medicine, specializing in kidney transplantation, minimally invasive hemodialysis access surgery, pancreas transplantation and single port donor nephrectomy. He is affiliated with several top-rated hospitals in the region, including the University of Maryland Medical Center, and the University of Maryland Shore Medical Center. Dr. Leeser received his Medical Degree from Temple University School of Medicine. He completed an internship in General Surgery at Walter Reed Army Medical Center, a residency in General Surgery at Temple University Hospital, and a fellowship in Transplant Surgery at University of Maryland Medical System.

Dr. Leeser is a surgeon that caters to the needs of patients with End Stage Renal Disease. He performs all dialysis access procedures, renal transplantation and pancreas transplantation. He has built an access program for the Eastern Shore of Maryland that see over 600 patients visits per year and performs more than 500 access procedures.

Dr. Leeser's clinical study interests are also focused on kidney disease and transplantation. He currently heads several industry-sponsored clinical trials to investigate dialysis access and renal transplant.

Lok Charmaine Lok, MD
Toronto, Ontario

Dr. Charmaine Lok is an Associate Professor in the Faculty of Medicine at the University of Toronto (U of T) and in the Department of Clinical Epidemiology and Biostatistics, Faculty of Health Sciences, McMaster University. She is graduate faculty and sits on the executive committee of the Clinical Epidemiology & Health Care Research Program, Department of Health Policy, Management and Evaluation (U of T). Dr. Lok is the medical director of both the chronic kidney diseases and hemodialysis vascular access programs at the Toronto General Hospital, Toronto, Canada. She is a clinician scientist with a current research focus on hemodialysis vascular access and cardiovascular disease in ESRD. Dr. Lok has over 80 scientific publications. She was the recent Chair of the National Kidney Foundation Spring Clinical Meeting (USA) and is involved in a variety of local and international scientific and educational programs, including CIHR, KFOC, DOPPS, NKF, and ASN.

Lok 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.

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.

Stephanie Czuhajewski Executive Director
Stephanie Czuhajewski, CAE
Vascular Access Society of the Americas

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