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Nechama D Dreyfus, MD
Hematology-Oncology, Cancer (Oncology)
About Me
Dr. Nechama Dreyfus joined Mount Sinai in 2026 as a Hematology-Oncology physician with a special interest in urologic cancers.
After completing her undergraduate studies at Yeshiva University, Dr. Dreyfus earned her medical degree from Albert Einstein College of Medicine. She subsequently completed her residency in Internal Medicine at New York-Presbyterian Hospital/Weill Cornell Medical Center before moving to Montefiore Medical Center for her fellowship in Hematology and Oncology. Dr. Dreyfus is board certified by the American Board of Internal Medicine.
In her professional community, Dr. Dreyfus is a member of the American Society of Hematology, the American Society of Clinical Oncology, and the New York Metropolitan Breast Cancer Group.
Language
English
Position
ASSISTANT PROFESSOR | Medicine, Hematology and Medical Oncology
Hospital Affiliations
- Mount Sinai South Nassau
- Mount Sinai Queens
- The Mount Sinai Hospital
Clinical Focus
- Acute Lymphoid Leukemia
- Acute Myeloid Leukemia
- Adenoid Cystic Carcinoma (ACC)
- Adrenal Cortical Carcinoma
- Adrenal Gland Tumors
- Adult Non-Hodgkin's Lymphoma
- Anal Cancer
- Anaplastic Thyroid Cancer (ATC)
- Anemia
- Aplastic Anemia
- Appendix Cancer
- Bladder Cancer
- Blood Disorder
- Cancer
- Cancer Treatment
- Carcinoid Tumors
- Cholangiocarcinoma
- Chronic Myelocytic Leukemia
- Clotting disorders
- Clotting/Thrombotic Disorders
- Coagulation Disorders
- Colon Cancer
- Colorectal Cancer
- Endocrine Cancer
- Endocrine Pancreas Tumors
- Endocrine Tumors
- Esophageal Cancer
- Esophagogastric Junction Cancer
- Gallbladder Cancer
- Gastric (Stomach) Cancer
- Gastrointestinal Cancers
- Genitourinary Malignancies
- Head and Neck Cancers
- Hematologic Malignancies
- Hematology
- Hemochromatosis
- Hemolytic Anemias
- Hepatobiliary Cancer
- Hepatocellular Carcinoma
- Hodgkin's Lymphoma
- Immune thrombocytopenia (ITP)
- Infusion Therapy
- Iron-Deficiency Anemia
- Kaposi sarcoma
- Kidney Cancer
- Leukemia
- Leukocytosis / High White Blood Count
- Leukopenia / Low White Blood Count
- Liver Cancer
- Lung Cancer
- Lymphoma
- Lymphoma (Hodgkin And Non-Hodgkin)
- Lymphoproliferative disorders
- Mantle Cell Lymphoma
- Mediastinal Tumors
- Medullary Thyroid Cancer (MTC)
- Melanoma
- Merkel Cell Tumors
- Monoclonal Gammopathy of Uncertain Significance (MGUS)
- Multiple Myeloma
- Myelodysplastic Syndromes
- Myeloproliferative Disorders
- Myeloproliferative Neoplasm
- Myeloproliferative Neoplasms (MPN)
- Nasal Cavity Cancer
- Nasopharyngeal Cancer (NPC)
- Neuroendocrine Tumors
- Non-malignant Hematologic Disorders
- Non-small cell lung cancer
- Oncology Second Opinion
- Oral Cavity Cancer
- Pancreatic Cancer
- Papillary Thyroid Cancer
- Primary Central Nervous System Lymphoma
- Primary Polycythemia
- Primary peritoneal tumors
- Prostate Cancer
- Rectal Cancer
- Sarcomas
- Sarcomas, Soft-Tissue
- Sickle Cell Disease/Sickle Cell Anemia
- Sinus Cancer
- Small Bowel Cancer
- Small cell lung cancer
- Spinal Cord Tumors
- Stomach (Gastric) Cancer
- Stomach Cancer
- Testicular Tumors
- Throat Cancer
- Thrombocytopenia
- Thrombocytosis
- Thrombocytosis / High Platelets
- Thrombotic Microangiopathies
- Thrombotic Thrombocytopenic Purpura (TTP)
- Thyroid Cancer
- Tongue Cancer
- Tonsil Cancer
- Urologic Cancers
- Waldenström's Macroglobulinemia
- gastrointestinal stromal tumor
- neuroendocrine cancer
Education
MD, Albert Einstein College of Medicine
Residency, Internal Medicine
New York Presbyterian Weill-Cornell Internal Medicine
Fellowship, Hematology & Medical Oncology
Montefiore Medical Center
Certifications
American Board of Internal Medicine
Insurance Information
Accepted insurance may vary by the doctor’s office location. Please contact the office directly to obtain the most up-to-date insurance information.
Physicians who provide services at hospitals and facilities in the Mount Sinai Health System might not participate in the same health plans as those Mount Sinai hospitals and facilities (even if the physicians are employed or contracted by those hospitals or facilities).
Information regarding insurance participation and billing by this physician may be found on this page, and can also be obtained by contacting this provider directly. Because physicians insurance participation can change, the insurance information on this page may not always be up-to-date. Please contact this physician directly to obtain the most up-to-date insurance information.
Insurance and health plan networks that the various Mount Sinai Health System hospitals and facilities participate in can be found on the Mount Sinai Health System website.
Industry Relationships
Physicians and scientists on the faculty of the Icahn School of Medicine at Mount Sinai often interact with pharmaceutical, device, biotechnology companies, and other outside entities to improve patient care, develop new therapies and achieve scientific breakthroughs. In order to promote an ethical and transparent environment for conducting research, providing clinical care and teaching, Mount Sinai requires that salaried faculty inform the School of their outside financial relationships.
Dr. DREYFUS has not yet completed reporting of industry relationships or has no industry relationships to report.
Mount Sinai’s faculty policies relating to faculty collaboration with industry are posted on our website. Patients may wish to ask their physician about the activities they perform for companies.