About Our Urologists

We provide the highest standard of care to our patients. With years of experience practicing medicine, we are renowned for our skill in the prevention, diagnosis and treatment of a wide variety of conditions and disorders. Our physicians and our entire medical staff are always ready to provide expertise, experience and compassion to each and every one of our patients.

Kevin P. Asher, M.D.

Kevin Asher, M.D. graduated from Towson University and Columbia University Medical School. He completed his residency in Urology at Boston University and has completed a fellowship in Urologic Oncology at the National Cancer Institute/National Institute of Health. Dr. Asher is certified by the American Board of Urology.

Aaron Berkenwald, M.D.

Dr. Berkenwald has expertise in general urology, including kidney cancer, bladder cancer, prostate cancer, testicular cancer, penile cancer, BPH including laser and bipolar TURP, kidney stones, bladder stones, erectile dysfunction, percutaneous surgery, laparoscopic surgery, overactive bladder and urinary incontinence. While in training, Dr. Berkenwald focused heavily on minimally invasive surgery including robotics and advanced endoscopy.

Stephen J. Gallo, M.D.

Dr. Gallo received his BA Degree from Johns Hopkins University and his medical degree from New York Medical College. He completed his training in urology at New York Medical College. Dr. Gallo is the Chief of Urology at Baystate Medical Center. Dr. Gallo was elected by his peers for inclusion in Best Doctors in America® from 2007 to 2010 and 2013 to 2016, and he was nominated as a Castle and Connelly "Top Doctor". He is an Assistant Professor at the University of Massachusetts Medical School. Dr. Gallo is certified by the American Board of Urology.

Andrew Kim, M.D.

Dr. Kim received his medical degree from University of Maryland School of Medicine, and he completed his surgical and urological residency at University of Maryland Medical Center. He earned his BS degree in Mechanical Engineering from Columbia University and completed his Graduate Post Baccalaureate Program at University of Maryland, College Park.

Joshua S. Pagar, M.D.

Dr. Pagar received his medical degree from St. Louis University School of Medicine, and completed his surgical and urological residency at University of Missouri Hospital and Clinics, Columbia, MO. He earned his MS degree in Physiology and Neurobiology, with a focus on Renal Physiology, from the University of Connecticut. He graduated from Bowdoin College in Brunswick, ME with his BA degree. Dr. Pagar is originally from Connecticut.

Joseph Sarcona, M.D.

Dr. Sarcona received his medical degree from New York Medical College, Valhalla, NY, and he completed his surgical and urological residency at Lenox Hill Hospital, New York, NY. He earned his BS degree in Neuroscience from the University of California, Los Angeles, CA and completed his Graduate Post Baccalaureate Program at Drexel University College of Medicine, Philadelphia, PA.

Jonathan S. Starkman, M.D.

Dr. Starkman received his bachelor of science degree in molecular biology, from the University of Michigan and his medical degree from Wayne State University School of Medicine, Detroit, MI. He completed his training in urology at Wayne State University Affiliated Hospitals. Dr. Starkman completed postgraduate fellowship training in Female Urology, Urodynamics, and Reconstructive Urology at Vanderbilt University Medical Center. He is an assistant professor Tufts Medical School and is board certified by the American Board of Urology.

William E. Swanson, M.D., M.B.A.

Dr. Swanson received his bachelor of arts degree, with honors and in biology, from the University of Massachusetts, Boston, Massachusetts. He received his medical degree from Albany Medical College in 1995, where he was awarded the Medical Student Alumni Award of his graduating class. He completed his training in urology at Brown University, Rhode Island Hospital in Providence, Rhode Island. Dr. Swanson earned his M.B.A. at UMASS Isenberg School of Management. Dr. Swanson is Chief of Urology at Mercy Medical Center. He is Assistant Professor at the University of Massachusetts Medical School. Dr. Swanson is board certified by the American Board of Urology.

Michael E. Zavaski, M.D.

Dr. Zavaski is a Member of the American Urological Association and the Massachusetts Medical Society. He has expertise in general urology, including kidney cancer, bladder cancer, prostate cancer, testicular cancer, penile cancer, BPH including laser and bipolar TURP, kidney stones, bladder stones, erectile dysfunction, robotic surgery, percutaneous surgery, laparoscopic surgery, and urinary incontinence.