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Texas Medical Center

Phone: 832-822-4209
Fax: 832-825-1456


6701 Fannin St., Ste. 1510.16
Houston, TX 77030

ZoAnn E. Dreyer, MD

Clinical Director, Long-Term Survivor Program
Professor, Department of Pediatrics, Section of Hematology-Oncology, Baylor College of Medicine


School Education Degree Year
Baylor College of Medicine fellowship Pediatric Hematology Oncology 1988
Baylor College of Medicine residency Pediatrics 1985
University of California at Davis School of Medici medical school Doctor of Medicine 1982
University of California, Davis bachelors Bachelor of Science 1977


Dr. ZoAnn Dreyer is Clinical Director of the Long-Term Survivor Clinic at Texas Children’s Cancer Center. Over 1,000 childhood cancer survivors are evaluated every one to two years for delayed effects of their prior cancer therapy. Survivors are patients who are more than five years from their diagnosis and off therapy at least two years. There is no upper age limit for survivors followed in the clinic. Survivors are now invited to become participants in a novel program, the Passport for Care® Application.

Dr. ZoAnn Dreyer’s clinical interests include acute lymphoid leukemia (ALL) in infants younger than one year old. She was the principal investigator for an innovative, nationwide treatment protocol for these infants that have resulted in dramatically improved survival rates. She is currently principal investigator of a new pilot study using intensified asparaginase in patients with high risk ALL.

Dr. Dreyer earned her bachelor’s degree and medical degree from the University of California, Davis, Calif. She served her internship, residency and postdoctoral fellowship at Baylor College of Medicine, one of the nation’s leading medical schools.

Board Certifications American Board of Pediatrics American Board of Pediatrics - Pediatric Hematology/Oncology


Organization Name Role
American Society of Clinical Oncology (ASCO) Member
American Society of Hematology (ASH) Member
American Society of Pediatric Hematology/Oncology (ASPHO) Member
Gulf Coast Hematology Society (GCHS) President



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* 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.