Hematology and Oncology | Fellowship | Current Fellows

Current Fellows


Alicia Bach, M.D.

  • Hometown: Dallas, TX
  • Undergraduate: BS, Brandeis University, Waltham, MA, 2010
  • MD: University of Texas Medical School at San Antonio, TX, 2015
  • Residency: University of Florida College of Medicine, Gainesville, FL, 2018
  • Dr. Bach started fellowship in 2018. Her primary mentor is Dr. Laura Schuettpelz, Associate Professor of Pediatrics at Washington University. Her research in Dr. Schuettpelz’s lab is focused on understanding the role of the tetraspanin CD53 in regulating both normal and malignant B lymphocyte development. Using mouse models and human leukemia cells, she is exploring the potential role of this protein as a new therapeutic target in B-lineage acute lymphoblastic leukemia. In her free time, Dr. Bach enjoys spending time with her dog Monty, reading a good book, and binging Netflix (all while studying hematology-oncology, of course!).

Megha Malhotra, M.D.

  • Hometown: Halifax, Nova Scotia, Canada
  • Undergraduate: BSc in Neuroscience and Theatre Studies, Dalhousie University, Halifax, Canada, 2008
  • MD: Kasturba Medical College, Manipal, Karnataka, India, 2015
  • Residency: Southern Illinois University School of Medicine, Springfield, IL, 2019
  • Dr. Malhotra started fellowship in 2019. Her research interests are primarily clinically-based, specifically in the fields of oncological critical care and late effects of treatment. Her previous research has been on the efficacy of parenteral iron as an alternative first line treatment of iron deficiency in an otherwise healthy population. She has also contributed to a community health literacy project regarding sickle cell anemia. Additionally, she recently presented a project related to resident clinic workflow improvement (SIU School of Medicine Department of Pediatrics Resident Research Conference, 2019). Dr. Malhotra is looking forward to training at Washington University. She hopes to ultimately practice as a hospital-based Pediatric Oncologist.

Katarina Semkiu, M.D.

  • Hometown: Chicago, IL
  • Undergraduate: BA with double major in Psychology and Theology, minor in Biology at Saint Louis University, 2010
  • MD: Loyola University Chicago Stritch School of Medicine, Maywood, IL, 2014
  • Residency: Advocate Children’s Hospital, Park Ridge, IL, 2017
  • Chief Residency: Advocate Children’s Hospital, Park Ridge, IL, 2018
  • Dr. Semkiu started fellowship in 2018. Her primary mentor is Dr. Amanda Emke, Assistant Professor of Pediatrics at Washington University. Her research with Dr. Emke is focused on exploring the education of Pediatric Hematology/Oncology fellows on critical communication.

Bryan Sisk, M.D.

  • Hometown: St. Louis, MO (proud Cardinals fan!!!)
  • Undergrad: BS in Biochemistry at University of Missouri – Columbia, 2007
  • MD: Case Western Reserve University School of Medicine, 2013
  • Residency: St. Louis Children's Hospital, St. Louis, MO 2016
  • Chief Residency: St. Louis Children's Hospital, St. Louis, MO 2017
  • Dr. Sisk started fellowship in 2017. His primary mentor is Dr. James DuBois, Director of the Bioethics Research Center in General Medical Sciences at Washington University. Dr. Sisk’s research focuses on understanding the purposes and functions of communication between clinicians and families in pediatric oncology. He is currently leading a multi-institutional qualitative study that will define the primary purposes of communication from the perspective of parents, physicians, nurse practitioners, nurses, and other clinicians.
  • Dr. Sisk is completing the Mentored Training Program in Clinical Investigation (MTPCI) and he will complete a Master's of Science in Clinical Investigation (MSCI) in 2020. He is a 2018 recipient of the NIH Loan Repayment Program award, 2019 recipient of a Young Investigator Award from the American Society of Clinical Oncology, and 2019 recipient of an institutional Seed Funding Grant from the Institute for Clinical and Translational Science at Washington University.
  • For a link to Dr. Sisk’s publications, click here.

Julia Warren, M.D., PhD

  • Hometown: Summit, NJ
  • Undergraduate: BA in Biological Sciences, summa cum laude, University of Chicago, Chicago, IL, 2007
  • MD: Washington University School of Medicine, St. Louis, MO, 2015
  • PhD: Immunology, Washington University School of Medicine, St. Louis, MO, 2015
  • Residency: St. Louis Children’s Hospital/Washington University, St Louis, MO, 2017
  • Dr. Warren started fellowship in 2017. Her primary mentor is Dr. Dan Link, the Alan A. and Edith L. Wolff Professor of Medicine at Washington University. Her research in Dr. Link’s lab focuses on understanding human granulopoiesis through the use of sequencing and molecular biology. Previously, she worked on her other favorite myeloid lineage cell, the osteoclast, and explored receptor oligomeric states necessary for signal transduction. Dr. Warren has a clinical interest in bone marrow failure syndromes, cytopenias, and histiocytic diseases. She is currently supported by the pediatric T32 Training Program in Developmental Hematology, and hopes one day to lead an independent basic science research lab. For a link to Dr. Warren’s publications, click here.

Clare Zimmerman, M.D.

  • Hometown: Springfield, IL
  • Undergraduate: BS in Biology, summa cum laude, Phi Beta Kappa, Illinois College in Jacksonville, IL, 2011
  • MD: Southern Illinois University School of Medicine, Springfield, IL, 2015
  • Residency: Loyola University Medical Center, Maywood, IL, 2018
  • Dr. Zimmerman started fellowship in 2018. Her primary mentors are Dr. Jeffrey Bednarski, Assistant Professor of Pediatrics, and Dr. Todd Fehniger, Associate Professor of Medicine at Washington University. Her research with Drs. Bednarski and Fehniger is focused on the use of cytokine-induced memory- like natural killer cells (CIML NK cells) for the treatment of primary refractory or relapsed acute myeloid leukemia (AML). Dr. Zimmerman is helping to conduct two phase I trials currently underway. She will continue her clinical training with a focus on bone marrow transplantation. Dr. Zimmerman has a clinical interest in cellular therapies and hopes to one day lead pediatric clinical trials at an academic medical institution related to these. She loves living in St. Louis with her fiance, Brian, and is enjoying planning her wedding for Spring 2020.

Recent Graduates

Nicole Brossier, M.D., PhD
Dr. Brossier completed fellowship in 2019, and joined the faculty in the Division of Pediatric Hematology and Oncology at St. Louis Children’s Hospital/Washington University as a member of the Neuro- Oncology team. She completed her MD and PhD degrees at the University of Alabama School of Medicine, followed by residency in pediatrics at St. Louis Children’s Hospital/ Washington University prior to starting fellowship in 2016. Her primary mentor is Dr. David Gutmann, Professor of Neurology and Director of the Neurofibromatosis Center at Washington University. Dr. Brossier’s research in the Gutmann lab focuses on understanding regional and temporal neural stem cell heterogeneity in the formation of pediatric gliomas. She is the recent recipient of a Hyundai Hope on Wheels Young Investigator Award and an Alex’s Lemonade Stand Foundation Young Investigator Award. For a link to Dr. Brossier’s publications, click here.

Margaret (Young) Ferris, M.D., PhD
Dr. Ferris completed fellowship in 2019, and joined the faculty in the Division of Pediatric Hematology and Oncology at St. Louis Children’s Hospital/Washington University as a member of the Leukemia team. She completed her MD and PhD degrees at the Washington University School of Medicine, where she worked in the laboratory of Dr. Tim Ley studying the genetic consequences of induced pluripotent stem cell reprogramming. She then completed a residency in pediatrics at St. Louis Children’s Hospital/ Washington University prior to starting her fellowship in 2015. During her fellowship, she was supported by the Eunice Kennedy Shriver National Institute of Health and Human Development (NICHD)- funded Pediatric Scientist Development Program. Her primary mentor is Dr. John Welch, Associate Professor of Medicine at Washington University. Her research in the Welch lab focuses on retinoid receptors as a therapeutic target in infant leukemia. Dr. Ferris is the recent recipient of an Alex’s Lemonade Stand Young Investigator Award.

Stacy Snyder, M.D.
Dr. Snyder completed fellowship in 2019, and joined the Beacon Medical Group of South Bend, Indiana, as a pediatric hematologist/oncologist. She completed her medical degree from the University of Toledo College of Medicine, followed by residency in pediatrics at the Children’s Hospital Medical Center of Akron prior to starting fellowship in 2016. Dr. Snyder’s research during her fellowship focused on determining risk factors impacting toxicity related to high-dose methotrexate administration in pediatric oncology patients. She also received a certificate in informatics through the American Medical Informatics Society (AMIA) and Oregon Health and Science University (OHSU) during her fellowship.

Daniel Willis, M.D.
Dr. Willis completed fellowship in 2019, and joined the faculty in the Division of Pediatric Hematology and Oncology at St. Louis Children’s Hospital/Washington University as a member of the Solid Tumor team. He earned his medical degree from the University of Kansas School of Medicine, followed by residency in pediatrics at St. Louis Children’s Hospital/ Washington University prior to starting fellowship in 2016. Dr. Willis has an interest in quality improvement in healthcare, and his research focuses on the risk factors and outcomes associated with C. difficile infections in pediatric oncology patients. He completed a Masters in Population Health Sciences during his fellowship, and is a recent recipient of the Postdoctoral Fellowship Award from the Children’s Discovery Institute at Washington University.


Past Fellows

Past Fellow Graduation Post-Fellowship Position
Erin Hall, M.D. 2018 University of Missouri-Kansas City
Megan Gauthier, M.D. 2018 U.S. Food and Drug Agency
Steven Allen, M.D. 2017 University of Pittsburgh Medical Center
Cecelia Calhoun, M.D., MPH 2017 Washington University in St. Louis
Sima Bhatt, M.D., MSCI 2017 Washington University in St. Louis
Emily Walling, M.D. 2016 University of Michigan
Emily Jen, M.D., PhD 2016 U.S. Food and Drug Agency
Andrew Cluster, M.D. 2016 Washington University in St. Louis
Angela Herman, M.D. 2015 OSF HealthCare Children’s Hospital of Illinois
Alok Kothari, M.D. 2015 Washington University in St. Louis
Melanie Fields, M.D., MSCI 2014 Washington University in St. Louis
Alex Ngwube, M.D. 2014 Stem Cell Transplant Fellowship, Texas Children’s Hospital
Melissa Schapiro, M.D., MSCI 2014 Memorial Sloan Kettering Cancer Center
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