Alexander Aledo, M.D.
Pediatric Hematology-Oncology
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Alexander Aledo, M.D.

Pediatric Hematology-Oncology

Profile Photo of Alexander Aledo, M.D.
Accepts New Patients
Gender: Male
Language: English, Spanish


Specialties and Expertise


  • Pediatric Hematology-Oncology
  • Pediatric Oncology


  • Pediatric Leukemia
  • Pediatric Lymphomas
  • Pediatric Solid Tumors
  • ALL (Acute Lymphoblastic Leukemia of Infant)
  • Transient Myeloproliferative Disorder
  • Beckwith-Wiedemann Syndrome
  • Malignant Germ Cell Tumor
  • Wilms' Tumor
  • Hepatoblastoma
  • Cancer of Liver In Pediatric Patient
  • Sarcoma of Bone
  • Rhabdomyosarcoma
  • AML (Acute Myeloblastic Leukemia)
  • FAB M7 (Acute Megakaryoblastic Leukemia)
  • Philadelphia Chromosome Positive Acute Lymphoblastic Leukemia (ALL)
  • Langerhans Cell Histiocytoses

Personal Statement

One of the earliest experiences that pointed me towards my field was a book entitled Eric, which I read while an undergrad at Hunter College. This vivid memoir published in 1974 was written by Doris Lund. It frankly describes her son’s battle with leukemia during his freshman year in college. 

I am a graduate of NYU School of Medicine and did my internship and residency at what was called then the New York Hospital. I entered then the combined Pediatric Hematology/Oncology fellowship program — which is still jointly run by Weill Cornell Medicine and Memorial Sloan Kettering. I was privileged to have had many incredible mentors during my fellowship including Paul Meyers, Norma Wollner and Fere Ghavimi.  

I became Chief Fellow in 1990 and my formal training came to a close. I now have 27 years of experience in the field — caring for infants, children and adolescents with leukemia, lymphoma, sarcoma and other cancers. Since 1995, I have directed the Pediatric Oncology Program at the NYP Komansky Center for Children’s Health.

During that period we have made amazing advances. But it is clear that the maximum potential benefit of conventional chemo agents has nearly been reached. To surpass the current cure rates requires we expoit the potential of the newest molecularly-targeted investigational agents.  I worked as a research investigator on the COG-AALL0031 study. This pivotal clinical trial led by Kirk Schultz proved that a kinase inhibitor, when added to conventional chemotherapy, results in a dramatic improvement in cure rates for children and teenagers with Philadelphia-chromosome-positive acute lymphoblastic leukemia. This novel treatment in many cases rendered bone marrow transplant unnecessary (transplant had previously been considered the standard-of-care for Ph+ ALL).

I feel strongly that a core component of the appeal, and the privilege, of caring for children and teens with cancer is that we must evaluate and treat the entire patient. A narrow focus cannot succeed. This is our mission at the Komansky Center and Weill Cornell Medicine.





Dr. Alexander Aledo is Director of Pediatric Oncology Program at the Komansky Center for Children's Health and serves as the institutional PI for COG (Children's Oncology Group) research trials.

Dr. Aledo is an Associate Professor of Clinical Pediatrics at Weill Cornell Medicine and an Associate Attending Pediatrician at NewYork-Presbyterian Hospital.  He is a graduate of NYU School of Medicine. He completed his residency in Pediatrics at NewYork-Presbyterian Hospital/Weill Cornell Medical Center.  After residency, he completed his fellowship and served as Chief Fellow at the joint Pediatric Hematology-Oncology program of the New York Hospital-Cornell University Medical College and the Memorial Sloan Kettering Cancer Center.  He is board certified in Pediatric Hematology-Oncology. 
Dr Aledo is Vice Chairman of the Weill Cornell Medical Center's IRB and a Fellow of the New York Academy of Medicine.




Honors and Awards

Honors and Awards

America's Top Doctors
11th Edition
10th Edition
9th Edition

Top Doctors: New York Metro Area
15th Edition
14th Edition
13th Edition
12th Edition
11th Edition
10th Edition
9th Edition
8th Edition
7th Edition
6th Edition
5th Edition
New York Super Doctors

America's Top Doctors for Cancer

7th Edition
6th Edition
5th Edition

2011 Elected Fellow of The New York Academy of Medicine

2002 The Creative Spirit Award of The Creative Center - Arts for People with Cancer

1998 Children's Blood Foundation Award


Board Certifications

  • Pediatrics
  • Pediatric Hematology-Oncology

Education and Training

  • M.D., New York University School of Medicine, 1984


Insurance Plans Accepted

For relevant information regarding accepted insurances, please contact this provider directly.

Locations and Appointments