Meet Our Faculty

Vikas R. Dharnidharka, M.D., M.P.H
Division Chief

Kevin Barton, M.D.
T. Keefe Davis, M.D.
Carmen Halabi, M.D., Ph.D.
S. Paul Hmiel, M.D., Ph.D.
Keith A. Hruska, M.D.
Aadil Kakajiwala, M.D.
Tara Neumayr , M.D.
Toshifumi Sugatani, Ph.D.


Raja Dandamudi, M.D.

Nurse Practitioners

Kira Geile, MSN, RN, CPNP
Brandy Markley, RN, CPNP
Amy McAlister, BSN, RN, CPN

Nurse Coordinators

Ruth Orschell, RN
Pat Wiltsch, RN

Clinical Research Coordinator

Leslie Walther, RN, BSN

Dialysis/Pheresis Nurse Manager

Monica Hughey, RN


The Division of Pediatric Nephrology of the Department of Pediatrics at Washington University School of Medicine has outstanding capabilities in cutting-edge research, trainee education and all levels of clinical patient care. Links on this page provide additional descriptions of each of these missions. As January 1, 2018, the division comprises nine faculty members, one fellow, three nurse practitioners and two nurse coordinators.

The division provides comprehensive treatment for children who suffer from kidney or genito-urologic disorders, both acute and chronic. This includes evaluation, specialized testing, education and ongoing care, such as the provision of dialysis and kidney transplantation as treatment for chronic kidney disease. Our program is based at St. Louis Children's Hospital, a consistently ranked hospital in the national US News and World report. Washington University School of Medicine has consistently been ranked a top medical school in the USA. The pediatric nephrology division works closely with outstanding programs in Adult Nephrology, Pediatric Urology, Pediatric Rheumatology, and Transplant Surgery.

From our group, the following doctors have been regularly selected (by confidential peer nomination only) in the list of Best Doctors in America:

  • Dr. Keith Hruska - continuously from 2004 to 2018
  • Dr. Paul Hmiel - continuously from 2005 to 2018
  • Dr. Vikas Dharnidharka - continuously from 2007 to 2018

Current faculty members hold leadership positions in national societies or in the local institution. 

Several current faculty members have received major national achievement awards:

  • Carmen Halabi: 2015 - 2017 Scholar of the Child Health Research Center at Washington University School of Medicine, National Institutes of Health, K12-HD076224
  • Paul Hmiel: 2015 - 2016 Outstanding Subspecialty Teaching Award, Pediatric Residents of St Louis Childrens Hospital
  • Vikas Dharnidharka: 2017 Nominated for Board of Directors election slate, American Society of Transplantation
    • 2017 Nominated for National Governing Council, American Society of Pediatric Nephrology
    • August 2017, was asked to join the Nephrology working group for US News & World Report
  • Keith Hruska was an established investigator of the American Heart Association. He is an elected member of the prestigious American Society of Clinical Investigation since 1981 and the Association of American Physicians since 1990. He was President of the American Society for Bone and Mineral Research in 2013. He has been NIH-R01 funded consecutively for the past forty years. He has been editor of AJP-Renal, CTI, and on the editorial boards of the JBC, Kidney Int. and JASN.

What's New

  • Several Pediatric Nephrology faculty represented Washington University during ASN Kidney Week
    Read more.

Contact Us

Vikas R. Dharnidharka
Division Chief

Paul Hmiel
Training Program Director

Michelle McKnight
Director of Clinical Operations

Kathy Kiefer
Administrative Coordinator

(314) 286-1574 (Voice)
(314) 286-2351 (Fax)

Patients and Parents
(314) 454-6043 (Voice)
(314) 454-4283 (Fax)
(888) 503-2237 (Toll-free)

Physician Referrals
(314) 454-6043 (Voice)
(314) 454-4283 (Fax)
(800) 678-4357 (Toll-free)

U.S. Mail
Washington University
School of Medicine
Department of Pediatrics
Division of Nephrology
660 S. Euclid Ave.,
Campus Box 8116
St. Louis, MO 63110-1093

© 2018 by Washington University in St. Louis
One Brookings Drive, St. Louis, MO 63130