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Urology Residency Faculty

Dr. Plante  

Mark K. Plante, MD
Chief of Urology, Professor of Surgery
Program Director, Division of Urology

Mark K. Plante, MD, FRCS(C), FACS is the Chief of Urology at the University of Vermont Medical Center. He is a Tenured Professor of Surgery and is the Urology Residency Program Director. A Flight Surgeon from 1993 to 1996 for Skyservice, he completed his medical degree and surgical training at McGill University in Montreal, Canada and received several awards during his residencies in General Surgery and Urologic Surgery. Dr. Plante has co-authored over 60 abstract presentations, over 35 peer review publications and four review publications and chapters. Dr. Plante has served as both Treasurer and President of the New England Section of the American Urological Association (AUA) and was a graduate of the inaugural leadership class of the AUA. Dr. Plante has been an invited speaker/presenter/visiting surgeon at conferences and universities throughout the United States, Canada, Europe, Asia and Australia. He has been primary to the successful reestablishment of Urologic Surgical Residency training at the University of Vermont as well as the broad integration efforts for urologic patient care in several counties in both Vermont and Upstate New York. Under his leadership, all urologic care in the UVM Health Network is provided by faculty urologists.

Dr. Grunert  

Richard T. Grunert, MD
Assistant Professor of Surgery

Dr. Grunert received his medical degree from Rush Medical College in Chicago, Illinois. He completed his internship in Surgery and his residency at the University of Wisconsin. Dr. Grunert’s research interests include reducing the risk of surgical site infection of urinary prosthetics as well as applying new wound retractor technology to greatly reduce the risk of skin contamination during the surgical implantation procedure. He is also actively involved in the evolving field of Laser endoscopic surgery. Dr. Grunert is a member of the American Urological Association, American Association of Clinical Urologists, a Fellow of the American College of Surgeons, Society of Sexual Medicine, the International Society of Sexual Medicine, and the European Society of Sexual Medicine.

Dr. Holoch  

Peter A. Holoch, MD
Assistant Professor of Surgery

Dr. Holoch received his medical degree from the University of Vermont. He completed his internship in Surgery, his residency and Male Infertility Fellowship from the University of Iowa. Dr. Holoch’s research interests include the effect of low-dose clomiphene citrate on spermatogenesis in the rat. Dr. Holoch is the Director of Medical Student Education in Urology and plays an active role in residency teaching. Dr. Holoch specializes in infertility, erectile dysfunction, and reconstructive urology. He is a member of the American Urological Association, the American Society of Reproductive Medicine, and the Alpha Omega Alpha Honor Medical Society.

Brian Irwin, MD  

Brian Irwin, MD
Associate Professor of Surgery

Dr. Irwin received his medical degree from the University of Vermont. He completed his internship in Surgery at Indiana University, his residency at the University of Connecticut, and a Minimally Invasive/Endourology Fellowship at The Cleveland Clinic Foundation. Dr. Irwin’s research interests include the impact of decipher prostate cancer classifier (primary prostatectomy tumor 22 genomic pattern) on Physician and Patient Treatment Consideration and Decisions following Radical Prostatectomy (PRO-IMPACT), the treatment choices of men with “good-risk” prostate cancer: an exploratory pilot study, and the Men’s Eating and Living (MEAL) Study: A Randomized Trial of Diet to Alter Disease Progression in Prostate Cancer Patients on Active Surveillance. Dr. Irwin plays an active role in residency teaching. He is a member of the American Urological Association, Socioeconomic Committee for the New England Section of the American Urological Association, and the Vermont Representative to the Board of Directors for the New England Section of the American Urological Association.

Benjamin King, MD  

Benjamin King, MD
Assistant Professor of Surgery

Dr. King received his medical degree, completed his internship in Surgery and his residency in Urology at the University of Vermont. He has been involved in several research projects which have been presented at regional, national and international meetings and resulted in several publications. Prior to his undergraduate studies, he spent several years volunteering abroad in Europe, South America, and Asia. He is a member of the American Urological Association.

Benjamin King, MD  

Andrew C. Mahoney, MD
Associate Professor of Surgery

Dr. Mahoney received his medical degree from the University of Colorado. He did a transitional year at the Mayo Clinic in Scottsdale, AZ. Dr. Mahoney completed his internship in Surgery and his residency at the Georgetown University. Dr. Mahoney is a practicing Urologist in the Department of Surgery at the University of Vermont Medical Center and primarily practices general urology in Middlebury and at Porter Medical Center. He also sees patients at the University of Vermont Medical Center – Fanny Allen campus twice a month. He is board certified and a member of the American Urological Association.

gerald mingin, MD  

Gerald C. Mingin, MD
Associate Professor of Surgery

Dr. Mingin received his medical degree from the University of Medicine and Dentistry of New Jersey. He completed his internship in Surgery and his residency at the University of Medicine and Dentistry of New Jersey and his Pediatric Urology fellowship at the University of California. Dr. Mingin’s research interests include social stress-induced voiding dysfunction and serves as the Principal Investigator for a grant from the National Institute of Diabetes and Digestive and Kidney Diseases. Dr. Mingin is the Director of Pediatric Urology at Vermont Children’s Hospital at the University of Vermont Medical Center. Dr. Mingin is a member of the American Urological Association, American Association of Pediatric Urology and is a Specialty Fellow of the American Academy of Pediatrics.

scott perrapato, MD  

Scott D. Perrapato, DO
Associate Professor of Surgery

Scott D. Perrapato, DO FACOS is an Associate Professor at the University of Vermont (UVM). Dr. Perrapato received his medical degree from the University of Medicine and Dentistry of New Jersey, School of Osteopathic Medicine. He completed his internship in Surgery at the Grand Rapids Osteopathic Hospital, his residency at the Metropolitan Hospital in Grand Rapids, MI, and his Urologic Oncology Fellowship at Roswell Park Cancer Institute (RPCI) in Buffalo, NY. Dr. Perrapato is the Director of the University of Vermont Medical Center Genitourinary Oncology Transdisciplinary Team. He also assisted in the initiation of the UVM Medical Center Computer Assisted/Robotic Surgery Program. Dr. Perrapato is an active member of the Society of Urologic Oncology, American Urological Association, American Society of Clinical Oncologists, and American College of Osteopathic Surgeons. Dr. Perrapato has recently been appointed to the Alliance Cancer Control Program / Prevention Committee.

Jonathan Riddell, MD  

Jonathan Riddell, MD
Assistant Professor of Surgery

Dr. Jonathan Riddell received his medical degree and completed his urology residency through the University of Western Ontario. He completed a fellowship in maternal-fetal and pediatric urology at the University of Montreal (CHU Sainte-Justine). His clinical and research interests include minimally invasive and robot surgery for congenital urologic conditions in children, adolescents and young adults. He has pioneered several new robotic techniques and actively presents at national and international meetings. Dr. Riddell is a member of the American Urologic Association, the American Association of Pediatric Urologists and is specialty-board certified in both Canada and the United States.

kevan sternberg, MD  

Kevan M. Sternberg, MD
Associate Professor of Surgery

Dr. Sternberg received his medical degree from SUNY Buffalo. He completed his internship in Surgery and residency in Urology at SUNY Buffalo and his fellowship in Endourology & Robotics at the University of Pittsburgh. Dr. Sternberg is the Co-Director of the Multidisciplinary Kidney Stone Clinic and the Director of Research for the Division of Urology at the University of Vermont Medical Center. He plays an active role in residency teaching and participates in clinical research looking at outcomes and quality related to kidney stone disease. He is a member of the American Urological Association and the Vermont State Representative for the New England Section AUA board of directors.

Physician Assistants

kaitlin brenny  

Kaitlin Brenny, PA-C

Kaitlin Brenny, PA-C is a Physician Assistant with the Division of Urology at the University of Vermont Medical Center. She is also a Clinical Instructor of Surgery at the University of Vermont College of Medicine. A native Vermonter, she completed her undergraduate degree at the University of Vermont. She went on to complete her Master of Clinical Medical Science in Miami, Florida, at the Barry University Physician Assistant Program. A clinical instructor at the University Of Vermont College Of Medicine, she has been with the Division of Urology since 2008.

liz stampfl  

Elizabeth A. “Liz” Stampfl, PA-C

Liz Stampfl, PA-C is a Physician Assistant with the Division of Urology at the University of Vermont Medical Center. She is also a Clinical Instructor of Surgery at the University of Vermont College of Medicine. Liz received her bachelor’s degree from Trinity College of Vermont and her Physician Assistant certificate from Albany Medical College. Liz works very closely with the urology residents and is highly involved with the robotics program. Liz is a member of the American Academy of Physician Assistants, Physician Assistant Academy of Vermont, and the Urology Association of Physician Assistants.

Residents

curtis cleveland  

Curtis Cleveland, MD

Dr. Cleveland is the chief urology resident at the University of Vermont. Originally from Marietta, Georgia, a suburb of Atlanta, he attended the University of Georgia for his undergraduate education and received a bachelor of arts in anthropology. He also earned a minor in Portuguese while at UGA. In between undergraduate and medical school, he worked at the Shepherd Center - a specialized spinal cord and brain injury rehabilitation hospital in Atlanta - as a physical therapy assistant. He then attended medical school at the Medical College of Georgia. During medical school, he was particularly interested in anatomy, which is what led him towards finding a surgical specialty. He was a teaching assistant in anatomy for 2 years during medical school and enjoys teaching and working with students. He moved up to Burlington, Vermont to start his urology residency at the University of Vermont in June 2015 and is now in his chief year. He is pursuing general urology after residency and particularly enjoys aspects of reconstructive urology, robotic surgery, and men's health. Outside of the hospital, he enjoys mountain biking, road biking, backpacking, snowboarding, and basketball.

Barayan_Ghassan white coat.jpgGhassan Barayan, MD

Dr. Barayan is a PGY-4 urology resident at the University of Vermont. He received his medical degree from the Faculty of Medicine at King Abdulaziz University with honors and was awarded the Star of Faculty of Medicine. He did a research fellowship at Boston Children’s Hospital in Robotic Surgery / Pediatric Urology. Afterward, he did a Master of Science at McGill University and his Project was on Active Surveillance in Prostate Cancer cohort. He began Urology residency training at McGill University and transferred as a PGY-4 to UVMMC. He participated in multiple volunteer medical missions as well as public awareness campaigns. Dr. Barayan speaks fluent Arabic, English and French. He loves travelling, playing soccer, swimming, ping pong, billiards and spending free time with family and friends.

nathaniel johnson  

Nathaniel Johnson, MD

Dr. Johnson is a PGY-4 urology resident at the University of Vermont. Dr. Johnson received his medical degree from Tufts University. He is a graduate of Bates College with a BS in Biological Chemistry. In medical school, he was involved in the Tufts Global Health Program in rural Panama. Dr. Johnson was president of the Tufts ski club for 2 years. When he was younger, he funded his love of competitive skiing by managing the snack shack in Falmouth, Maine. His hard work paid off, and by the end of high school, he was ranked # 1 in mogul skiing in the east!

richard hartnett  

Richard Hartnett, MD

Dr. Hartnett is a PGY-3 urology resident at the University of Vermont. He is originally from Stonington, Connecticut. Dr. Hartnett received his medical degree from Wake Forest School of Medicine. He is a graduate of Georgia Tech where he majored in biomedical engineering. Prior to pursuing medicine he briefly worked as a patent examiner at the US Patent and Trademark Office. He then completed two masters degrees, the first in electrical engineering and then in physiology and biophysics from Georgetown University. Dr. Hartnett enjoys traveling, having studied abroad in France, as well as playing tennis and basketball, hiking, bowling, and rooting for all Boston sports.

Awad_Mohannad.jpgMohannad Awad, MD, MAS

Dr. Awad is a PGY-3 urology resident at the University of Vermont. He received his medical degree from King Abdulaziz University in Saudi Arabia. Dr. Awad completed his general surgery internship at St. Elizabeth’s Medical Center in Boston. Prior to his residency, Dr. Awad completed a master’s degree in clinical research at the University of California, San Francisco. One of his main projects was about bicycling and sexual function, which he presented at the AUA. The topic garnered a lot of media attention. Dr. Awad enjoys playing soccer, ping pong, and basketball. He is a licensed scuba diver and enjoys diving in the wonderful Red Sea back home in Saudi Arabia.

brett giblin  

Brett Giblin, MD

Dr. Giblin is a PGY-2 urology resident at the University of Vermont. Dr. Giblin received his medical degree from Geisinger Commonwealth School of Medicine in Scranton, Pennsylvania. He is a graduate of Harvard University with a BA in Molecular and Cellular Biology. In medical school, he was involved in advocacy and was elected Vice-Chair of the AMA Medical Student Section for the Mid-Atlantic Region. He has a deep love of baseball (both minor and major leagues) and the application of advanced analytics in sports. A former water polo letter-winner in high school, Dr. Giblin still enjoys swimming but is just as likely to be indulging one of his other interests: philosophy, architecture, and absurdist comedy.