Ashish R. Kumar, MD, PhD

Director, Langerhans Cell Histiocytosis Center

Director, Hematology/Oncology Fellowship Program

Academic Affiliations

Professor, UC Department of Pediatrics

Phone 513-636-7287

Fax 513-803-1969



Childhood cancer and blood disorders; immune deficiency


Leukemia biology; cancer biology

Visit the Kumar Lab.

Dr. Kumar received his medical degree from L.T.M. Medical College, Mumbai, India, his PhD in anatomy and cell biology from the University of Iowa, pediatric residency training at the Mayo Clinic and fellowship in pediatric hematology / oncology / BMT at the University of Minnesota. He was appointed to the faculty of the University of Minnesota in the Department of Pediatrics where he was a member of the programs in pediatric leukemia and global pediatrics. He is currently an associate professor of pediatrics in the Division of Bone Marrow Transplantation and Immune Deficiency at Cincinnati Children's within the University of Cincinnati College of Medicine. Dr. Kumar’s laboratory is engaged in researching the biology of infant leukemia. Discoveries made in his laboratory have significantly enhanced the current understanding of leukemia. Dr. Kumar is also active in education. He has delivered invited lectures and grand round presentations on various topics.

Visit the HLH Center of Excellence.

Learn more about the 700 Miles to Hope Bike Ride.


2017-2018 Best Doctors badge.

Dr. Kumar has been elected by peers for inclusion in the Best Doctors in America List.

MD: LTM Medical College, Mumbai, India.

Residency: Mayo Clinic, Rochester, MN.

Fellowship: University of Minnesota, Minneapolis, MN.

PhD: University of Iowa, Iowa City, IA.

Certification: General Pediatrics; Pediatric Hematology/Oncology Subspecialty.

Licenses: State of Ohio; State of Minnesota.

Role of MEIS1 in hematopoiesis and hematopoietic transformation. Principal Investigator. National Institutes of Health/National Heart, Lung, and Blood Institute. Jul 2012-Jun 2017.

Novel therapeutics of targeting mTOR pathway in T-cell leukemia. Co-investigator. National Institutes of Health/National Cancer Institute. Jul 2015-Jun 2017.