Margaret T. Lee, MD cares for children with blood disorders, such as anemias (sickle cell anemia, thalassemia, and iron deficiency), bleeding (including idiopathic thrombocytopenic purpura [ITP], hemophilia, and von Willebrand disease), and clotting disorders (such as deep vein thrombosis). Dr. Lee's main research focus is sickle cell disease. She is seeking new ways to prevent the complications of sickle cell disease, particularly those affecting the brain and lungs. Currently, she is investigating whether high-dose vitamin D therapy can reduce respiratory complications in children with sickle cell disease. In addition to its well-known role in maintaining healthy bones, vitamin D has been shown to have anti-infective and anti-inflammatory effects that may benefit patients with sickle cell disease. Dr. Lee is also the site investigator for the National Institutes of Health-funded series of multicenter clinical trials on stroke prevention in children with sickle cell anemia (STOP 1 and 2, SWiTCH, and TWiTCH). Dr. Lee's other area of interest is a rare group of diseases called vascular anomalies. There is relatively little known about these disorders, and the care of patients with vascular anomalies requires a multidisciplinary group of physicians from several specialties (dermatology, surgery, cardiology, neurology, and hematology/oncology)-all of whom are available at NewYork-Presbyterian/Morgan Stanley Children's Hospital. Hematologists play a role in the medical treatment of vascular tumors and the supportive care of clotting and bleeding complications that are associated with some types of vascular malformations. Dr. Lee is an active participant in the Vascular Anomalies Group at NYP/Morgan Stanley Children's Hospital, as well as the Vascular Anomalies Special Interest Group of the American Society of Pediatric Hematology/Oncology, which is looking at novel therapies for vascular anomalies and their complications.
Dr. Lee's experience matches your search based on the following criteria:
Based on total number of patients treated over the last 12 months
Specializes in Pediatric Hematology & Oncology
Board certified in Pediatric Hematology-Oncology
No malpractice claims found
No sanctions found
No board actions found
Pediatric Hematology & Oncology
Accredited by: American Board of Pediatrics*
Why It Matters: Dr. Lee's Board Certifications
Board certification should be one of your top considerations when choosing a doctor. Board certification is an official recognition given to doctors who have met specific requirements set by national medical specialty boards in the United States.
Board certification indicates that a doctor is highly qualified in the medical field in which he or she practices. A board-certified doctor is more likely than a non-board-certified doctor to have the most current skills and knowledge about how to treat your medical condition.
Acute Lymphoid Leukemia
Acute Myeloid Leukemia
Brain and Nervous System Cancer (incl. Gliomas, Astrocytoma, Schwannoma, Medulloblastoma, Chordoma)
Coagulation Disorders (incl. Hemophilia)
Deep Vein Thrombosis (DVT)
Immune Thrombocytopenic Purpura (ITP)
Mast Cell Diseases
Paroxysmal Nocturnal Hemoglobinuria
Polycythemia Rubra Vera
Primary Hypercoagulable State (incl. Factor V Leiden Disease)
Sickle Cell Disease
Soft Tissue Sarcoma
von Willebrand Disease
Bone Marrow Biopsy
0 Malpractice Claims
No malpractice history found for New York.
What is medical malpractice?
Medical malpractice is issued when negligence by a doctor causes injury to a patient. For example, a doctor may improperly diagnose, treat or medicate outside the standard of medical care. The three types of malpractice are: a settlement, an arbitration award, or a judgment.
If my doctor has malpractice history, does that mean he or she is a poor-quality doctor?
If your doctor has a malpractice claim, evaluate the information and determine if the action could potentially impact the quality of care you receive. Claim settlements and arbitration awards may occur for a variety of reasons, which should not necessarily reflect negatively on the doctor's professional competence or conduct. You may want to use this information to start a discussion with the doctor about his or her history and specific ability to provide healthcare for you.
How far back does Healthgrades malpractice history go?
Healthgrades reports details of a doctor’s malpractice history when the doctor has at least one closed medical malpractice claim within the last five years, even if he or she no longer practices in that state.
For which states does Healthgrades collect malpractice history?
Healthgrades collects malpractice information from California, Colorado, Connecticut, Florida, Georgia, Illinois, Massachusetts, Nevada, New Jersey, New York, North Carolina, Oregon, Tennessee, Texas, Vermont, Virginia, and West Virginia. If your doctor has a malpractice claim, evaluate the information and determine if the action could potentially impact your quality of care. Sometimes multiple states report the same claim. If a provider practices in a state where data is unavailable, please reach out to your local state legislature to help make this data publicly available.
No sanctions history found for the years that Healthgrades collects data.
What is a sanction or disciplinary action?
A sanction, also known as a disciplinary action, is an action taken to punish or restrict a doctor who has demonstrated professional misconduct. Sanctions may be imposed by a state medical board, professional medical licensing organization, or the U.S. Department of Health and Human Services.
If my doctor has sanction history, does that mean he or she is a poor-quality doctor?
If a doctor has a sanction, it does not necessarily mean that he or she is a poor-quality doctor. Some sanctions are not related to medical care, and involve a doctor’s finances or administrative activities. Before you make any choices about changing your doctor, we recommend that you evaluate the doctor’s sanction information and determine how severe or relevant you think the sanction cause and action were.
How far back does Healthgrades sanction history go?
Healthgrades reports state and federal sanctions from the previous five years, except when a doctor's license has been revoked or surrendered. Healthgrades displays all actions for doctors whose licenses have been revoked or surrendered.
For which states does Healthgrades collect sanction history?
Healthgrades collects sanction history from all 50 U.S. states. Physicians with a disciplinary action in one state may move to another state where they have a clean record. Since Healthgrades painstakingly compiles disciplinary action information from all 50 states, Healthgrades website will show if a physician has a disciplinary action in more than one state.
0 Board Actions
No board actions found for the years that Healthgrades collects data.
What are board actions?
Board actions are non-disciplinary actions imposed upon a doctor based on a complaint investigation. A patient or medical colleague may file a complaint with that state medical board or professional licensing organization, which then investigates the complaint. Board actions are intended to ensure that a doctor is able to perform safe medical and health care tasks.
Types of non-disciplinary actions include an advisory letter, a corrective action agreement, a limitation or restriction on the medical or healthcare tasks a doctor can perform, or a voluntary agreement by the doctor not to practice. A board action can also include a termination of a corrective action agreement or voluntary agreement, which allows the doctor to return to full practice.
If my doctor has a board action, does that mean he or she is a poor-quality doctor?
If a doctor has a board action, it means he or she has had a non-disciplinary action imposed upon him or her. It does not necessarily mean that he or she is a poor quality doctor. Before you make any choices about changing your doctor, evaluate the doctor's board action information and determine how severe or relevant you think the cause and action were.
How far back does Healthgrades non-disciplinary board action history go?
Healthgrades reports non-disciplinary board action history from for the previous five years, except when a doctor's license has been revoked or surrendered. Healthgrades displays all actions for doctors whose licenses have been revoked or surrendered.
For which states does Healthgrades collect non-disciplinary board actions?
Healthgrades collects non-disciplinary board actions from all 50 U.S. states.
University of Santo Tomas Faculty of Medicine
Medical School | Graduated 1985
New York University Medical Center
Residency Hospital | Completed 1995
Santo Tomas University Hospital
Residency Hospital | Completed 1990
New York University Medical Center
Fellowship Hospital | Completed 1994
Awards & Recognition
Awards & Honors
Healthgrades Honor Roll
Media & Publications
Dr. Lee has no media or publications listed.
Awards & Recognition
What is a recognized doctor?
Healthgrades Recognized Doctor designation identifies leading doctors who:
Are board certified.
Have not had their license surrendered or revoked since Healthgrades started collecting data in 2000.
Have no malpractice judgments, adverse arbitration awards, or monetary settlements for the last five years in the states in which Healthgrades can collect malpractice data.
Are free of state or federal disciplinary actions (sanctions) for the last five years.
Healthgrades updates the Recognized Doctor list quarterly based on board certification data. Healthgrades also receives sanction and malpractice data throughout the year, depending on how frequently the state medical boards release updates.
We remove a newly sanctioned doctor from the Recognized Doctor list as soon as we receive the information. However, it is important to note that malpractice information is publically available in only 14 states.
Memberships & Professional Affiliations
Dr. Lee does not have any memberships or affiliations listed. If you are Dr. Lee and would like to add memberships or affiliations, please update your profile.