Alex Kentsis, MD, PhD - MSK Pediatric Hematologist-Oncologist

Upper East Side sidewalks carry a quiet rhythm of scrubs and stethoscopes between the hospital towers. Among them, Alex Kentsis, MD, PhD keeps a practice focused on pediatric blood disorders and childhood cancers. The specialization feels rare in a city crowded with generalists; here, families find expertise that spans both laboratory science and clinical care, often for conditions that demand precise, research-backed treatment plans.

The office sits at 1275 York Ave, New York, NY 10065, a building whose address most locals recognize before they even look at the directory. Pediatric hematology can cover everything from anemia and clotting disorders to leukemia and solid tumors, so the conversations inside tend to be as varied as the patients walking through the door. When questions arise or appointments need scheduling, the number to call is (347) 798-9014. For directions, the map at this link keeps the route simple on a phone screen.