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Leslie Andritsos
Schedule an appointment (614) 293-3196
Insurances We Accept
I specialize in treating blood cancers, such as hairy cell leukemia, chronic lymphocytic leukemia and other blood cancers. Additionally, I serve as both clinical director and medical director of the Blood and Bone Marrow Transplant Program here at the OSUCCC – James. I also work with our medical students as an associate professor of internal medicine at The Ohio State University. I’ve co-authored more than 125 articles and abstracts published in applicable medical journals.

Cancer is a terrible diagnosis no one ever wants to receive. It can be very frightening for patients to suddenly need to learn about this disease and how it will impact them. I always take the time to talk with my patients about their cancer and explain everything in terms they understand. They need to know their treatment options so they can make the right decision for themselves and their families.

By working at a comprehensive cancer center like The James, we offer a variety of treatments, including surgery, systemic therapy, radiation or enrolling in innovative clinical trials. These opportunities are not always available at smaller facilities. I’m currently participating in multiple clinical trials in our search for more effective therapies.

Every day it’s an honor and a pleasure to work at The James. Cancer treatment here is a team effort, and my colleagues are highly trained experts in their field whom I learn from everyday. Most importantly, we are accessible and caring individuals who go the extra mile for our patients.


  • Internal Medicine
    Barnes-Jewish Hospital
    7/1/2000 - 6/30/2001

Additional languages I speak

  • Spanish

Specialties and conditions I treat

  • Hematology
  • Bone Marrow Transplantation
  • Hairy Cell Leukemia
  • Chronic Lymphocytic Leukemias
  • Blood Cancers

Locations where I practice

Please note: Not all physicians schedule patients at each listed location. Please call the “Schedule an appointment” number shown above for scheduling assistance.

More about my work

My background


  • Hematology/Oncology
    Washington University Hospital
    7/1/2001 - 7/30/2005

Board Certifications

American Board of Internal Medicine

American Board of Internal Medicine (Subspecialty: Hematology)

My Department

Internal Medicine

My Division


Consulting and Related Relationships

At The Ohio State University Wexner Medical Center, we support a faculty member’s research and consulting in collaboration with medical device, research and/or drug companies, etc. because a faculty member’s expertise can guide important advancements in the practice of medicine and improve patient care. In order to provide effective management of these relationships, the University requires annual disclosures from all faculty members with external interests related to their University responsibilities.

As of 03/25/2016, Dr. Andritsos has reported no financial relationships with medical device, research and/or drug companies, etc. If you have questions about how these relationships are monitored by The Ohio State University Wexner Medical Center, please contact our Compliance Office at 614-293-7802.