Four new members have been elected to the board of trustees at the Washington-based non-profit dialysis provider Northwest Kidney Centers.

Dr. Andrew Brockenbrough, a nephrologist at Valley Medical Center in Kent, is chair of Northwest Kidney Centers’ medical staff. He also serves as medical director for Northwest Kidney Centers’ dialysis clinic in Kent. He holds a bachelor’s degree from Stanford University and a medical degree from Vanderbilt. At the University of Washington, he received a master’s in epidemiology and completed two fellowships. He also completed a transplant fellowship at the University of Alabama.

Dr. Raj Mehrotra is professor of medicine at the University of Washington and section head of nephrology at Harborview Medical Center. He is treasurer of the International Society for Peritoneal Dialysis and president of the North American Chapter of the International Society for Peritoneal Dialysis. He also serves as associate editor for the Journal of the American Society of Nephrology.

Dr. Rex Ochi, of the Polyclinic Madison Center, earned a medical degree and completed an internship and residency at the University of Washington. He also completed a residency at Boise Veterans Administration Medical Center and a fellowship in nephrology at the University of Washington. He is medical director for the hospital services department at Northwest Kidney Centers.

Mark J. Ostrow is a licensed CPA and founder of RK2 Advisory LLC, a Seattle management consulting firm focused on cost measurement and process improvement in health care organizations. He serves on the board of the Queen Anne Community Council and the core leadership team of Seattle Neighborhood Greenways.