Jaap-Jan Boelens MD PhD – MSK Pediatric Hematologist-Oncologist & Bone Marrow Transplant Specialist is a pediatric hematologist based in New York, New York. Located at 1275 York Avenue, this medical practice focuses on diagnosing and treating blood disorders and cancers affecting children. The practice is well-regarded for its comprehensive approach to pediatric hematology, combining clinical expertise with advanced treatment options to address complex conditions in young patients.
Specializing in hematologic malignancies and bone marrow transplantation, the physician provides a range of services designed to manage diseases such as leukemia, lymphoma, and various inherited blood disorders. The integration of bone marrow transplant procedures supports patients requiring stem cell replacement to restore healthy blood function. This multidisciplinary approach ensures that children receive personalized care tailored to their specific medical needs.
The practice operates within the vibrant healthcare community of New York City, offering access to cutting-edge research and clinical trials. Patients benefit from a collaborative environment where specialists in pediatric oncology and hematology work closely with other healthcare providers to deliver coordinated treatment plans. This setting fosters innovative therapies and supports ongoing advancements in pediatric hematology.
Jaap-Jan Boelens MD PhD – MSK Pediatric Hematologist-Oncologist & Bone Marrow Transplant Specialist serves families seeking expert care for serious pediatric blood disorders in the New York metropolitan area. With a focus on both medical treatment and patient support, the practice strives to address the complexities of childhood hematologic diseases through a combination of expertise, advanced technology, and compassionate care.


































