About Me

I am a medical oncologist who focuses on the care of patients with lymphoma, and I have clinical expertise in all types of lymphomas. My research is aimed at developing an improved understanding of new therapies for patients with several less-common types of lymphoma, including T cell lymphomas, cutaneous (skin) lymphomas, Hodgkin disease, and lymphomas in immunosuppressed patients after organ transplant (post-transplant lymphoproliferative disorders or PTLD).

Read more
  • Clinical Expertise: T Cell Lymphomas; Cutaneous (Skin) Lymphomas; other non-Hodgkin and Hodgkin Lymphomas
  • Languages Spoken: English
  • Education: MD, Case Western Reserve University
  • Residencies: University of Rochester Medical School
  • Fellowships: Stanford University Medical Center
  • Board Certifications: Internal Medicine; Medical Oncology

New Patient Appointments

Making an appointment

Call 646-497-9137

See My Colleagues


Visit PubMed for a full listing of Steven M. Horwitz’s journal articles

Pubmed is an online index of biomedical articles maintained by the U.S. National Library of Medicine and the National Institutes of Health.


Most major health insurers offer plans that include MSK as one of their in-network providers. If MSK is in-network, it means all our doctors are too. Medicaid and New York State Medicare also provide benefits for care at MSK.

Learn more