Current Fellows
Third-Year Fellows
Kenneth Chen, M.D.
Education
B.S.E., John Hopkins University, 2002
M.D., UT Southwestern Medical Center, 2006
Postdoctoral Training
UT Southwestern/Children's Medical Center,
Pediatric Residency, 2006-2009
Rachel Chesley Thienprayoon, M.D.
Education
B.S., Georgia Institute of Technology, 2003
M.D., Medical College of Georgia, Atlanta, 2007
Postdoctoral Training
UT Southwestern/Children's,
Pediatric Residency, 2007-2010
Wilson File, M.D.
Education
B.S., University of South Carolina, Columbia, 2000
M.D., University of South Carolina School of Medicine, Columbia, 2007
Postdoctoral Training
Children's Hospital of the King's Daughter, Norfolk, VA,
Pediatric Residency, 2007-2010
Kasey Leger, M.D.
Education
B.S., UT Austin, 2001
M.D., UT Medical School at Houston, 2006
Postdoctoral Training
University of Colorado, Aurora,
Pediatric Residency, 2006-2009
Second-Year Fellows
Sara Helmig, M.D.
Education
B.S., University of Notre Dame, IN, 2004
M.D., Tulane University School of Medicine, 2008
Postdoctoral Training
UT Southwestern/Children’s,
Pediatric Residency, 2008-2011
Priya Mahajan, M.D.
Education
B.A., University of California, Berkeley, 2002
M.S., University of California, Berkeley, 2003
M.D., Tulane University School of Medicine, 2008
Postdoctoral Training
Children’s Hospital of Orange County, CA,
Pediatric Residency, 2008-2011
Ajla T. Wasti, M.D.
Education
M.B.B.S., Shifa College of Medicine, Bahria University, Islamabad, Pakistan, 2005
Postdoctoral Training
University of Oklahoma College of Medicine, Pediatric Residency, 2008-2011
First-Year Fellows
Shannon Cohn, M.D.
Education
B.S., UT Austin, 2005
M.D., Baylor College of Medicine, 2009
Postdoctoral Training
UT Southwestern/Children's,
Pediatric Residency, 2009-2012
Natalie Pounds, M.D.
Education
B.S., Rhodes College, Memphis, TN, 2004
M.D., UT Health Science Center, Austin, 2008
Postdoctoral Training
UT Southwestern/Children's,
Pediatric Residency, 2009-2011
Chief Resident, 2011-2012
Jacquelyn Powers, M.D.
Education
B.A., Rice University, Houston, 2004
M.D., UT Medical Branch School of Medicine, Galveston, 2008
Postdoctoral Training
UT Southwestern/Children's,
Pediatric Residency, 2009-2011
Chief Resident, 2011-2012
Kathleen Wiertel, M.D.
Education
B.S., University of Wisconsin, Madison, 2005
M.D., Loyola University of Chicago Stritch School of Medicine, 2009
Postdoctoral Training
UT Southwestern/Children's,
Pediatric Residency, 2009-2012