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Alex Chang
Clinical Investigator

Center for Health Research
100 North Academy Avenue
Danville, PA 17822 
Phone: 570-271-6393

Department of Nephrology
100 North Academy Avenue
Danville, PA 17822 
Phone: 570-271-6393

Alexander Chang, MD, MS

Research Interests

Dr. Chang is a nephrologist, assistant professor of Clinical Research and co-director of the Kidney Health Research Institute at Geisinger. He received his undergraduate degree in biology and medical degree from Ohio State University. He completed his internal medicine residency and nephrology fellowship at Loyola University Medical Center, where he also obtained a Master of Science in Clinical Research Methods. With active funding from the National Institute of Diabetes and Digestive and Kidney Diseases and National Kidney Foundation, Dr. Chang is engaged in research dedicated to preventing and delaying CKD progression and its complications. His research areas include interventional studies focused on improving lifestyle behaviors in patients with hypertension and patients with early CKD; using observational data from Geisinger and other large cohorts to identify potential avenues to improve management of CKD and hypertension; and health system interventions to improve early recognition and optimized management of early kidney disease.

Recent Publications

  • Chang AR, Anderson C. Dietary Phosphorus Intake and the Kidney. Annu Rev Nutr. 2017 Aug 21;37:321-346.
  • Chang AR, Grams ME, Navaneethan SD. Bariatric Surgery and Kidney-Related Outcomes. Kidney Int Rep. 2017 Mar;2(2):261-270.
  • Chang AR, Miller ER 3rd, Anderson CA, Juraschek SP, Moser M, White K, Henry B, Krekel C, Oh S, Charleston J, Appel LJ. Phosphorus Additives and Albuminuria in Early Stages of CKD: A Randomized Controlled Trial. Am J Kidney Dis. 2017 Feb;69(2):200-209
  • Chang AR, Evans M, Yule C, Bohn L, Young A, Lewis M, Graboski E, Gerdy B, Ehmann W, Brady J, Lawrence L, Antunes N, Green J, Snyder S, Kirchner HL, Grams M, Perkins R. Using pharmacists to improve risk stratification and management of stage 3A chronic kidney disease: a feasibility study. BMC Nephrol. 2016 Nov 8;17(1):168.
  • Chang AR, Chen Y, Still C, Wood GC, Kirchner HL, Lewis M, Kramer H, Hartle JE, Carey D, Appel LJ, Grams ME. Bariatric surgery is associated with improvement in kidney outcomes. Kidney Int. 2016 Jul;90(1):164-71.


BS, The Ohio State University, 2000-2003
MD, The Ohio State University College of Medicine, 2003-2007
Internal Medicine Residency, Loyola University, 2007-2010
MS, Loyola University, 2009-2011
Nephrology Fellowship, Loyola University, 2010-2012
Renal Epidemiology, Postdoc Research Fellowship, Johns Hopkins University, 2012-2013

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