For nearly 50 years, balboa NEPHROLOGY has grown from two physicians to a comprehensive nephrology team of 52 board-certified physicians and 8 advanced care practitioners and is a recognized leader in quality, outcomes, and value-based care. balboa’s patient-centric footprint consists of 24 clinical offices, 88 dialysis clinics throughout San Diego, Imperial, and Orange Counties. Balboa NEPHROLOGY manages over 40,000 patients in their clinics and over 4,200 ESRD patients.