Jennifer L Mayer, MD
Disclosures: Equity (stock in company)-Pfizer, Inc.-Other_Role-Prescribing physician of Sirolimus

Jennifer L.R. Mayer, M.D.


Dr. Mayer specializes in pediatric hematology/oncology in the Johns Hopkins All Children’s Cancer & Blood Disorders Institute and is the lead hematologist of the Vascular Anomalies Program at the hospital. She served twenty-one years as medical director of Johns Hopkins All Children’s collaboration with Sarasota Memorial Hospital. She is author of more than thirty publications and two textbook chapters. She joined Johns Hopkins All Children's in 1996.

Dr. Mayer received her medical degree from Dartmouth Medical School in New Hampshire. She completed her pediatric residency, pediatric hematology-oncology fellowship and clinical research fellowship at Yale University School of Medicine in Connecticut. Additionally, Dr. Mayer serves as the inpatient clerkship director for Florida State University medical students and is medical director for Johns Hopkins All Children’s Outreach Grand Rounds in Sarasota, Manatee and Charlotte counties. She is a fellow of the American Academy of Pediatrics, Children’s Oncology Group, and the American Society of Pediatric Hematology-Oncology Vascular Anomalies Special Interest Group.


Board Certifications

American Board of Pediatrics

  • Pediatrics
  • Pediatric Hematology/Oncology


  • Medical Education
    Dartmouth Medical School
  • Internship
    Yale-New Haven Medical Center
    Specialty: Pediatrics
  • Residency
    Yale-New Haven Medical Center
    Specialty: Pediatrics
  • Fellowship
    Yale University School of Medicine
    Specialty: Pediatric Hematology-Oncology