Faculty 

Wadi Suki, MD, FACP Dr. Suki is the Program Director of Houston Methodist Hospital's Nephrology Fellowship Program. He received his medical degree from the American University of Beirut School of Medicine, and completed his post-doctoral training in Internal Medicine, and Hypertension and Nephrology at the University of Texas Southwestern Medical School and Parkland Memorial Hospital in Dallas, Texas. Dr. Suki has served as a consultant to and member of the Board of Directors of a number of governmental agencies, voluntary health organizations and professional organizations. He has also served and continues to serve on the editorial boards of numerous scientific journals. Dr. Suki has authored or co-authored more than 250 scientific publications addressing many aspects of renal physiology and disease, including hypertension and diabetes. His contributions have been recognized by awards such as the President's Medal of the American Society of Nephrology, 1991 and The David M. Hume Award of the National Kidney Foundation, 1994. Dr. Suki also held the position of the President of the American Society of Nephrology, 1997-1998.

Stephen Brennan, MD
Dr. Brennan is currently Clinical Associate Professor of Medicine at Baylor College of Medicine. He completed his residency at Loyola University Medical Center, Chicago and his Nephrology fellowship at Washington University Medical Center in St. Louis. Dr. Brennan has published numerous articles on various aspects of kidney function and disease. Dr. Brennan is board certified in both internal medicine and nephrology.

Joslyn Campbell, MD
Dr. Campbell received her medical degree from University of Texas Medical Branch in Galveston, Texas. She completed her Internal Medicine residency and Nephrology Fellowship at Baylor College of Medicine in Houston, TX. Dr. Campbell is board certified in both Internal Medicine and Nephrology.

Juan Gonzalez, MD
Dr. Gonzalez completed his internal medicine residency at Roosevelt Hospital in Guatemala City. He went on to do a nephrology fellowship at Texas Tech Health Sciences Center, Lubbock and Baylor College of Medicine, Houston. He is board certified in both internal medicine and nephrology. Dr. Gonzalez is currently a Voluntary Clinical Instructor at Baylor College of Medicine and has published multiple articles on various aspects of kidney function and disease including articles on hypertension and calcium transport. Dr. Gonzalez was awarded the Voluntary Faculty Clinical Teaching Award for 2011-2012.

Anna Kagan, MD, PhD
Dr. Kagan received both her MD and PhD from Albert Einstein College of Medicine in Bronx, NY. Her internship and residency were completed at Massachusetts General Hospital in Boston, MA, and her fellowship at Baylor College of Medicine in Houston, TX. Dr. Kagan is board certified in internal medicine and nephrology and certified as a Specialist in Clinical Hypertension.

A. Jabbar Khan, MD
Dr. Khan is currently a Clinical Instructor at Baylor College of Medicine in Houston, TX and Weill Cornell Medical College. He completed his internal medicine residency at Mercy Hospital and Medical Center in Chicago and his Nephrology Fellowship at Baylor College of Medicine. Dr. Khan is board certified in Internal Medicine and Nephrology.

George Nassar, MD
Dr. Nassar completed his Internal Medicine Residency and Nephrology Fellowship in 1995, at Emory University School of Medicine in Atlanta, GA. He is currently Clinical Associate Professor of Medicine in Weill Cornell Medical College and at Houston Methodist. He was appointed in 2012 as a Key Faculty in the newly established Houston Methodist Renal Fellowship Program. Dr. Nassar is nationally known for his expertise in Vascular Access Management and currently serves on the National Board of the American Society of Diagnostic and Interventional Nephrology (ASDIN). He is active in clinical research and presides over a privately held clinical research corporation. He chaired the National Kidney Foundation Medical Executive Committee in Houston since 2010 and led several and screening activities in the Houston community. Dr. Nassar has published several manuscripts and chapters on basic science, kidney disease and vascular access. He is currently board certified in Internal Medicine and Nephrology, and holds ASDIN certification for Interventional Nephrology.

Peter Nguyen, MD, FASN
Dr. Nguyen graduated from Texas Tech School of Medicine in Lubbock, Texas. He then completed his residency and nephrology fellowship at Baylor College of Medicine in Houston, where he was the chief fellow. He is board certified in internal medicine and nephrology and is a specialist in clinical hypertension. Dr. Nguyen is currently a Clinical Instructor for Weill Cornell Medical College and sits on/chairs many committees at Houston Methodist Hospital.

Juan Olivero Sr., MD
After graduating from Universidad de San Carlos in Guatemala, Dr. Olivero completed his Post-Graduate Training in Internal Medicine at the Baylor College of Medicine Affiliated Hospitals in Houston, Texas. He was the recipient of the Outstanding Intern of the Year Award and subsequently was selected to become Medicine Chief Resident at the Ben Taub General Hospital. After this, he completed a Fellowship in Nephrology also at the Baylor Program. Dr. Olivero is Board Certified in Internal Medicine and Nephrology as well as Specialist in Hypertension and currently is Clinical Professor of Medicine at Baylor College of Medicine and the University of Texas Health Science Center at Houston. Dr. Olivero is a Fellow of the American College of Physicians and the American Society of Nephrology and has been the recipient of multiple recognitions and awards from his peers, residents, students nursing personnel, dieticians and social workers. Dr. Olivero also has multiple publications in peer reviewed journals and has been consistently voted as Outstanding Houston Nephrologist for the last 10 consecutive years. He is also a memeber of the "Hall of Fame" for outstanding teachers at Baylor College of Medicine and was the first "John Overstreet Award " recipient at Houston Methodist Hospital. He practices with the Houston Kidney Consultants Group and is Medical Director of two DaVita Dialysis Units in Houston.

Juan Jorge Olivero, MD, FASN
Dr. Olivero received his medical degree from Universidad Autonoma de Guadalajara in Mexico. He completed his internship, residency and nephrology fellowship at the Baylor College of Medicine in Houston, TX. Dr. Olivero is board certified in internal medicine and nephrology, ASDIN certified in Diagnostic Renal Ultrasonography and is certified as a specialist in clinical hypertension.

Spencer Su, MD
Dr. Su received his medical degree from Texas Tech University Health Sciences Center. He went on to do his internship and residency at the Baylor College of Medicine and completed his fellowship in nephrology at Baylor as well. Dr. Su is currently board certified in both internal medicine and nephrology. He is ASDIN certified in interventional nephrology.


Dr. Rhee received his Medical Degree from Northwestern University Feinberg School of Medicine in 1996, Internal Medicine residency at Baylor College of Medicine from 1996-1999 and Nephrology fellowship at Baylor College of Medicine from 1999-2001. He is certified in internal medicine and in nephrology. His current interest is in interventional nephrology.

Sandra Barrow, MD