Sebastian Mayer
Language: English, German, French
Gender: Male
Hematologic Malignancies & Bone Marrow Transplant
520 East 70th Street, Starr Pavilion, 3rd Floor
New York, NY 10065
P: 212-746-2119 | F: 212-746-6678
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Personal Statement

As a hematologist specializing in stem cell transplantation, I am committed to making this treatment as safe as possible. The key to successful, potentially curative transplantation lies in better understanding the potential complications and in improving the effectiveness of the procedure while minimizing the risks. Therefore, we strive to rapidly translate scientific findings from the lab in order to reverse the cancer cells’ resistance to treatment. This allows us to offer clinical trials aimed at both common and rare complications related to stem cell transplantation. 
I realize how scary it can be to receive a life-threatening diagnosis, and firmly believe in taking the time to clearly communicate with my patients about the nature of their disease and their various treatment options. This can not only vastly improve our patients’ experiences, but also their treatment outcomes, as an educated patient is able to make informed decisions about care and reclaim some of the autonomy that can be lost when coping with a cancer diagnosis.
In the midst of all the cutting-edge science and technology that we offer, I find it extremely important to remember that it is the patient who is the center of it all.  I genuinely care about my patients, and instilling a sense of hope, sharing a laugh, or a kind word can be as important as all the medical advances and state-of-the-art science.
View Biography


Board Certifications
  • Internal Medicine
  • Medical Oncology
  • Hematology
  • Medical Oncology
  • Bone Marrow Transplantation

Insurance Plans Accepted

The following represents most of the managed care plans accepted by this physician. If your insurance carrier does not appear here please contact the physician’s office as they may have individual contracts not included on this site.

* indicates this physician is no longer accepting new patients with this insurance plan.

  • AETNA [Medicare]
  • Aetna - Weill Cornell [POS]
  • Affinity Essential
  • Affinity Health Plan
  • Blue Priority Network
  • Emblem Select Care
  • Empire Blue Cross/Blue Shield [Mediblue (Senior)]
  • Empire Blue Cross/Blue Shield [PPO]
  • Empire Blue Cross/Blue Shield [HMO]
  • Empire Blue Cross/Blue Shield [EPO]
  • Empire Blue Cross/Blue Shield [Pathway X]
  • Empire Blue Cross/Blue Shield [Pathway X Enhanced]
  • Empire Empire Blue Cross/Blue Shield HealthPlus
  • Empire Empire Blue Cross/Blue Shield HealthPlus [CHP]
  • Fidelis Care
  • GHI [CBP]
  • Health First
  • Health Insurance Plan of NY (HIP) [Medicare]
  • Health Insurance Plan of NY (HIP) [Medicaid]
  • Health Insurance Plan of NY (HIP)
  • Health Republic
  • Medicaid
  • Medicare
  • Oscar
  • Oxford Health Plans [Liberty]
  • Oxford Health Plans [Medicare Advantage]
  • Oxford Health Plans [Freedom]
  • Rockefeller University - CoreSource
  • UHC Compass
  • United Empire
  • United Health Care
  • United Health Care [Medicare]
  • United Health Care [Community Plan]
  • VNSNY CHOICE Medicare [Medicare]
  • VNSNY CHOICE Medicare [HMO]


  • M.D., University of Vienna Faculty of Medicine (Austria), 1998

Honors and Awards

Ruth Kirstein Award, NIH Training Grant in Cancer Biology  

Best Resident of the Internal Medicine Clinic Award
St. Luke’s - Roosevelt Hospital Center, New York

23rd International Symposium on Radioactive Isotopes in Clinical Medicine and Research
Bad Gastein, Austria



Assistant Attending Physician
NewYork-Presbyterian Hospital

Assistant Professor of Medicine
Weill Cornell Medical College, Cornell University



Research Associate, Department of Nuclear Medicine, University of Vienna, 1998-2000

Residency in Internal Medicine, St. Luke’s Hospital Center,  New York, 2000-2003

Fellowship in Hematology/Oncology, Mt. Sinai Medical Center, New York,  2003-2006

Fellowship in Stem Cell Transplantation, Memorial Sloan Kettering Cancer Center, New York,  2007-2008


Sebastian Mayer has been an attending physician on the Blood and Marrow Transplantation service at Weill Cornell Medical Center since 2010, after working on the Leukemia Service for two years.

A native of Austria, he earned his MD at the University of Vienna with a Doctoral thesis in experimental nuclear medicine. After two years of nuclear medicine research in Vienna, Dr. Mayer completed his Internal Medicine residency at St. Luke’s Roosevelt Hospital center in New York. During that time, he participated in research projects on the molecular biology of lymphoma at Mount Sinai Medical Center and Albert Einstein College of Medicine.

After a fellowship in Hematology/Oncology and a subsequent faculty appointment at Mount Sinai Medical Center, he completed a fellowship in Stem Cell Transplantation at Memorial Sloan Kettering Cancer Center.

His main research interests lie in the reversal of chemotherapy resistance in leukemia before stem cell transplant, specifically for patients with a high risk of disease recurrence. He also is an active investigator in the treatment of graft versus host disease, a feared complication of stem cell transplant, as well as the prevention and management of transplant rejection.

Dr. Mayer greatly enjoys the close interaction with his patients and also takes an active role in the education of junior physicians and medical students.