A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).
Learn more about Dr. Ellen Ritchie:
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- Currently 3 of 4 stars
The overall average patient rating of Dr. Ellen Ritchie is Good.
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Specialties & Research
Dr. Ellen Ritchie, MD is board certified in Hematology and Medical Oncology.
- She has special expertise in 8 areas:
- Acute Myeloid Leukemia
- Adult T-Cell Leukemia-Lymphoma
- Bone Marrow and Lymphatic Tissue Cancer (Hematologic Neoplasm)
- Chronic B-Cell Lymphocytic Leukemia
- Myelodysplastic Syndromes
- Myeloproliferative Disorders
Education & Awards
Dr. Ritchie graduated from Columbia University, New York.
Dr. Ritchie has 9 hospital affiliations:
- New York Presbyterian Hospital / Columbia
- New York Harbor Healthcare System