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Susan E. Kirk, MSPAS, PA-C

Assistant Professor, Department of Pediatrics, Section of Hematology-Oncology, Baylor College of Medicine


School Education Degree Year
National School of Tropical Medicine, Baylor College of Medicine Other Diploma of Tropical Medicine 2013
University of Kentucky, College of Health Sciences University Master of Science of Physician Assistant Studies 2008
Mississippi State University University Bachelor of Science, Biological Engineering 2003


Susan Kirk has been treating children with blood disorders for over 10 years. She is a member of the immune hematology, general hematology, and hematosis and thrombosis teams. Susan treats children with many conditions including anemias, low blood counts and bleeding and clotting disorders. She is particularly interested in immune thrombocytopenia (ITP) and bone marrow failure disorders. Susan works with the hematology teams in clinical trials, including therapies for ITP and aplastic anemia. Susan's goals are to have her patients and famillies understand their diagnosis and treatment options and to help them navigate all of the aspects of their care.

Her primary clinical interests include immune mediated hematologic conditions, particularly immune thrombocytopenia (ITP) and autoimmune hemolytic anemia (AIHA). She also has clinical interest in general hematologic conditions including nutritional anemias, enzyme deficiencies, membranopathies, and hemoglobinopathies.

Board Certifications
Certificate of Added Qualifications: Pediatrics by National Committee for Certification of Physician Assistants
Licensed in Texas as Physician Assistant
Licensed in Tennessee as Physician Assistant
Certified by National Committee for Certification of Physician Assistants


Organization Name Role
Advanced Practice Society of Hematology/Oncology Member
American Academy of Pediatrics (AAP) Member
American Academy of Physician Associates (AAPA) Member
American Society of Pediatric Hematology/Oncology (ASPHO) Member
National Hemophilia Foundation Member
Society for Physician Assistants in Pediatrics Member
Texas Academy of Physician Assistants Member
Texas Gulf Coast Physician Assistant Association Member

Research Statement

Susan Kirk’s research interest is focused on immune thrombocytopenia (ITP) and the study of novel agents to treat this condition. Susan is actively involved in expanding access to diagnostic tools and life-saving treatments for sickle cell disease in the U.S. and internationally through Texas Children’s Global Hematology Oncology Pediatric Excellence (HOPE). Susan spends much of her time at international sites supporting global projects in areas where the burden of sickle cell disease is greatest.

Selected Publications

View publications on VIICTR

Bernhardt MB, deGuzman MM, Grimes A, Kirk S, Nelson S, Bergsbaken J, Minard CG, Despotovic JM "Rapid infusion of rituximab is well tolerated in children with hematologic, oncologic, and rheumatologic disorders." Pediatric Blood & Cancer. 2017; Pubmed PMID: 28792663

Kim T, Grimes AB, Kirk S, Arulselva A, Lambert M, Grace RF, Despotovic J "Association of a positive direct antiglobulin test with chronic immune thrombocytopenia and use of second line therapies in children: A multi-institutional review." Am J Hem. 2019; Pubmed PMID: 30663792

Kirk SE, Grimes AB, Shelke S, Despotovic JM, Powers JM "The cost of a “benign” condition: Healthcare utilization and infectious outcomes in young children with primary autoimmune neutropenia." Pediatr Blood Cancer. 2019; Pubmed PMID: 31886613

Kirk SE, Scheurer M, Bernhardt MB, Mahoney DM, Powers JM "Phosphorus levels in children treated with intravenous ferric carboxymaltose." Am J Hem. 2021 Mar 18; Pubmed PMID: 33735470

Vorster L, Kirk SE, Muscal E, Despotovic JM, Cohen C, Sartain S "COVID-19 vaccine (mRNA BNT162b2) and COVID-19 Infection-Induced Thrombotic Thrombocytopenic Purpura in Adolescents." Pediatr Blood Cancer. 2022; Pubmed PMID: 35373880

Grimes AB, Kim TO, Kirk SE, Flanagan J, Lambert MP, Grace RF, Despotovic JM "Refractory autoimmune cytopenias in pediatric Evans syndrome with underlying systemic immune dysregulation." Eur J Haematol. 2021 Feb; Pubmed PMID: 33570766

Awards & Honors

2022    Star Faculty Award for Excellence in Clinical Care, Baylor College of Medicine
2020    Norton Rose Fulbright Faculty Excellence Award in Teaching and Evaluation
2020    Carl E. Fasser Visionary Leadership Award, Baylor College of Medicine
2016    Dr. Marilyn Hockenberry Advanced Practice Provider Award for Excellence in Education, Research and Clinical Practice



* Texas Children's Hospital physicians' licenses and credentials are reviewed prior to practicing at any of our facilities. Sections titled From the Doctor, Professional Organizations and Publications were provided by the physician's office and were not verified by Texas Children's Hospital.