About HYPERTENSION NEPHROLOGY ASSOCIATES. Hypertension Nephrology Associates is a provider established in Willow Grove, Pennsylvania specializing in clinic/center (end-stage renal disease (esrd) treatment) . The NPI number of Hypertension Nephrology Associates is 1639565138 and was assigned on April 2015. The practitioner's primary taxonomy code is 261QE0700X with license number SP014624 (PA)..