Natalia Tijaro Ovalle, MD
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Areas of Expertise
Conditions I Treat
- Leukemia
- Blood, bone marrow, and hematologic cancers and conditions
- Myelodysplastic syndrome
My Specialties
- Bone marrow transplant
- Stem cell transplant
- Allogeneic stem cell transplant
Get to Know Me
I’m a hematologic oncologist who is an expert in caring for people with blood cancers and related disorders. I see patients at the David H. Koch Center for Cancer Care at Memorial Sloan Kettering Cancer Center.
I have a special focus on bone marrow and stem cell transplants and cellular therapies. A bone marrow or stem cell transplant is a type of treatment where healthy stems cells replace unhealthy or damaged cells.
I provide treatment for acute leukemias, myelodysplastic syndromes (a group of disorders where the bone marrow doesn’t make enough healthy blood cells), multiple myeloma (a cancer of plasma cells in the bone marrow), and other serious blood cancers. Treatments may include stem cell transplant, immune-based therapies, or other options chosen specifically for you.
These treatments can be complex. My job is to help you and your family understand not only what your options are, but why a certain treatment may be the best fit for you.
I believe in clear communication, working together, and caring for the whole person, not just the disease. Many patients come to me with concerns about treatment risks and side effects. They may also have questions about time away from home and work and the chance of the cancer coming back. Some people have concerns about graft-versus-host disease (where transplanted cells attack the body), infections, and what life may look like after treatment. I make room for these questions. I explain the science in plain language, and work with you to build a plan that fits your diagnosis, goals, values, support system, and overall health.
My research focuses on making transplants safer and more effective. I study how to find the right doses of chemotherapy and immune therapies, and how to reduce transplant side effects. I also study ways to help the immune system recover faster after transplant, and the latest cellular therapies that may lower the risk of the cancer coming back. My research also explores how inflammation, symptoms, graft-versus-host disease, and immune recovery affect how well treatment works.
I'm a bone marrow transplant specialist, which is a doctor with special training in bone marrow transplants.
- Assistant Attending Physician
Conditions I Treat
- Leukemia
- Blood, bone marrow, and hematologic cancers and conditions
- Myelodysplastic syndrome
- Myeloproliferative neoplasms (MPN)/Myeloproliferative disorders
- Multiple myeloma
- Graft-versus-host-disease (GVHD)
My Specialties
- Bone marrow transplant
- Stem cell transplant
- Allogeneic stem cell transplant
- Autologous stem cell transplant
Education
- MD, Universidad de los Andes, Colombia
Residencies
- Internal Medicine, Yale New Haven Hospital
Fellowships
- Hematology/Oncology, Memorial Sloan Kettering Cancer Center
Board Certifications
- Internal Medicine, Medical Oncology
Awards and Honors
- Clinical Research Training Institute Scholar, American Society of Hematology (ASH) (2025)
- H. Jean Khoury Award for Scholarly Excellence, American Society of Transplant and Cellular Therapy Clinical Research Training Course (ASTCT CRTC) (2025)
- Conquer Cancer Young Investigator Award, American Society of Clinical Oncology (ASCO) (2026)
Insurance Information
Understanding your insurance options is an important part of managing your cancer care. We have relationships with many common healthcare providers and plans.
In Network Coverage Type
HMO, EPO PPO, POS, Transplant
In Network Coverage Type
PPO
In Network Coverage Type
PPO, POS, EPO, HMO
In Network Coverage Type
HMO
This plan is in-network at our New York sites only.
In Network Coverage Type
HMO, PPO
In Network Coverage Type
HMO, EPO PPO, POS
In Network Coverage Type
Supplemental
In Network Coverage Type
PPO, POS, HMO
In Network Coverage Type
POS, HMO
In Network Coverage Type
PPO, POS, EPO, HMO
Offers a qualified health plan from the Health Insurance Marketplace. Call Emblem to learn more.
In Network Coverage Type
HMO
This plan is in-network at our New York sites only.
In Network Coverage Type
PPO, HMO
In Network Coverage Type
HMO
This plan is in-network at our New York sites only.
In Network Coverage Type
PPO
This is a dual payer plan, which means 2 health insurance companies share this plan. MSK providers are out-of-network with UnitedHealthcare.
In Network Coverage Type
HMO, EPO
Offers a qualified health plan from the Health Insurance Marketplace. Call Fidelis to learn more.
In Network Coverage Type
HMO
This plan is in-network at our New York sites only.
In Network Coverage Type
HMO
In Network Coverage Type
PPO
In Network Coverage Type
EPO, HMO, PPO, POS
Offers a qualified health plan from the Health Insurance Marketplace. Call Healthfirst to learn more.
In Network Coverage Type
HMO
This plan is in-network at our New York sites only.
In Network Coverage Type
HMO, PPO
In Network Coverage Type
PPO EPO
In Network Coverage Type
HMO
Your plan may not cover visits to our New York sites. Please call the number on the back of your insurance card to see what your health plan covers.
In Network Coverage Type
PPO
Your plan may not cover visits to our New York sites. Please call the number on the back of your insurance card to see what your health plan covers.
In Network Coverage Type
EPO
Your plan may not cover visits to our New York sites. Please call the number on the back of your insurance card to see what your health plan covers.
In Network Coverage Type
EPO
Your plan may not cover visits to our New York sites. Please call the number on the back of your insurance card to see what your health plan covers.
In Network Coverage Type
PPO, HMO
Your plan may not cover visits to our New York sites. Please call the number on the back of your insurance card to see what your health plan covers.
In Network Coverage Type
State Government
This plan is in-network at our New York sites only.
In Network Coverage Type
PPO, POS, EPO
In Network Coverage Type
Federal Government
In Network Coverage Type
HMO (City Employee Health Plans Gold and Gold Care Only)
In Network Coverage Type
Supplemental
In Network Coverage Type
PPO/OAP
In Network Coverage Type
PPO, POS, EPO, HMO
In Network Coverage Type
TBD
In Network Coverage Type
PPO, EPO
In Network Coverage Type
PPO, POS, HMO
In Network Coverage Type
State Government
This plan is in-network at our New York sites only.
In Network Coverage Type
PPO, HMO
In Network Coverage Type
PPO, POS
In Network Coverage Type
PPO, POS, HMO
In Network Coverage Type
State Government
Learn more about the insurance plans that participate with MSK.
If you don't have health insurance or are worried that your care may not be fully covered, our financial assistance programs may be able to help.
Health plans can change at any time. Call the number on the back of your insurance card to see what your plan covers. Make sure it covers the MSK location where you’ll get care.
If you have questions about insurance, call us at 646-497-9176.
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Contact and Location
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Colleagues
Doctors at Memorial Sloan Kettering work as teams, with specialists from all different areas. This allows us to consider all your needs together, and to give you the best possible care.
Clinical Trials
Memorial Sloan Kettering's doctors and scientists are constantly developing new treatments for cancer. MSK is typically running hundreds of clinical trials at a given time.
You may be able to participate in a clinical trial even if you are new to MSK. Search our online directory to find trial information and see more about who can participate.
Search clinical trialsResearch and Publications
Visit PubMed for a full listing of Dr. Ovalle’s journal articles. Pubmed is an online index of research papers and other articles from the US National Library of Medicine and the National Institutes of Health.
See all on PubMedPatient Reviews
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