Dr. Thornton has been practicing nephrology in Maine for the past twenty years. He completed medical school at Boston University. He trained in an Internal Medicine Residency and a Nephrology fellowship at Boston Medical Center in Boston, Massachusetts. Dr. Thornton is board certified by the American Board of Internal Medicine in Internal Medicine and Nephrology. Dr. Thornton is a clinical instructor of medicine at The University of New England School of Medicine. Dr. Thornton is active in treating all forms of kidney disease with special interests in hypertension, chronic kidney disease, and critical care nephrology.

Dr. Pyenta is a native of Michigan. He earned his medical degree at the Des Moines University College of Osteopathic Medicine. He completed his Internal Medicine residency and General Nephrology Fellowship training at St. John Detroit Riverview Hospital in Detroit, MI. He has special interest in renal transplantation patients and he has completed a Transplant Nephrology Fellowship at St. John Hospital and Medical Center in Detroit. He is board certified in Internal Medicine and Nephrology

Dr. Wright joined Nephrology Associates in 2018. He completed medical school at the University Of New England, internal medicine residency at the University of Massachusetts in Worcester, and nephrology fellowship at Maine Medical Center in Portland, Maine. He is board certified in internal medicine and nephrology. In addition to general care for patients with kidney disease, special interests include polycystic kidney disease and hypertension.

Kim joined Nephrology Associates in 2020. She earned her BSN from the University of Southern Maine and her MSN from Saint Joseph's College of Maine. She is board certified in Family Practice by the American Academy of Nurse Practitioners.

Before becoming a nurse practitioner, Kim worked as a registered nurse in the Intensive Care Unit at Central Maine Medical Center. She also spent several years teaching in clinical settings as part of the undergraduate nursing programs at both the University of Southern Maine and Saint Joseph's College.

Dr. Opolinsky received his baccalaureate degree from Queens College and his medical degree from the New York Institute of Technology College of Osteopathic Medicine. He completed his Internal Medicine residency, including a year as Chief Resident, and then his Nephrology fellowship at Maine Medical Center in Portland, Maine. Since then, Dr. Opolinsky has practiced in central Maine, serving as both a Nephrologist and a Hospital Medicine physician. He has worked with Nephrology Associates of Central Maine since 2024.