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Memorial Sloan Kettering medical oncologist Ezra Rosen

Ezra Rosen, MD, PhD

Breast Medical Oncologist & Early Drug Development Specialist

4.9 | 118 reviews

Areas of Expertise

Conditions I Treat

  • Breast cancers and conditions

My Specialties

  • Early-phase clinical trials
  • Targeted therapy
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Dr. Rosen's Office Information
Languages: English
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Get to Know Me

I am a medical oncologist who specializes in breast cancer and early phase clinical trials.

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I study the molecular mechanisms that drive a patient’s cancer, with the goal of bringing new treatments with higher efficacy and improved tolerability to the clinic. As a clinical investigator, I believe that clinical trials offer hope to patients through the development of new treatment options. 

When caring for my patients, I strive to help them better understand their disease which can make people feel informed and empowered. I present often complex treatment options in the clearest possible way to offer the best therapy to each patient based on their needs. Every day I work with an amazing interdisciplinary team of nurses, surgeons, radiation oncologists, pathologists, radiologists, and biologists, all united with the common goal of delivering the best cancer care.

What I Do at MSK

A breast medical oncologist is a cancer doctor who specializes in breast cancer.

An early drug development specialist tests new drugs to treat cancer. They have special training in research studies, known as clinical trials.

  • Assistant Attending Physician
Areas of Expertise

Conditions I Treat

  • Breast cancers and conditions

My Specialties

  • Early-phase clinical trials
  • Targeted therapy
Education & Honors

Education

  • MD, PhD, University of California, Los Angeles

Residencies

  • Internal Medicine - Columbia University Medical Center

Fellowships

  • Medical Oncology - Memorial Sloan Kettering Cancer Center

Board Certifications

  • Internal Medicine
  • Medical Oncology

Awards and Honors

  • Young Investigator Award, American Society of Clinical Oncology (2020)

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.

Aetna

In Network Coverage Type
HMO, EPO PPO, POS, Transplant

Aetna Medicare Advantage (MTA and NYC retirees only)

In Network Coverage Type
PPO

Anthem BCBS and other BCBS licensee plans

In Network Coverage Type
PPO, POS, EPO, HMO

See updates

Anthem BCBS Health Plus

In Network Coverage Type
HMO

See updates

Blue Cross Blue Shield Federal Employee Program

In Network Coverage Type
HMO, PPO

See updates

Blue Cross Blue Shield states outside of NY/NJ

In Network Coverage Type
HMO, EPO PPO, POS

See updates

Carrum Health

In Network Coverage Type
Supplemental

Cigna

In Network Coverage Type
PPO, POS, HMO

Connecticare

In Network Coverage Type
POS, EPO, HMO

First Health

In Network Coverage Type
PPO

Straight NJ Medicaid

In Network Coverage Type
State Government

Straight NY Medicaid

In Network Coverage Type
State Government

Emblem

In Network Coverage Type
PPO, POS, EPO, HMO

Offers a qualified health plan from the Health Insurance Marketplace. Call Emblem to learn more.

Emblem Essential

In Network Coverage Type
HMO

Emblem Medicare Advantage (Medicare Choice PPO Network and VIP Prime Network Only)

In Network Coverage Type
PPO, HMO

Empire Essential

In Network Coverage Type
HMO

Empire Plan / NYSHIP (Blue Cross/UnitedHealthcare split plan)

In Network Coverage Type
PPO

See updates

Fidelis

In Network Coverage Type
HMO, EPO

Offers a qualified health plan from the Health Insurance Marketplace. Call Fidelis to learn more.

Fidelis Managed Medicaid & HARP

In Network Coverage Type
HMO

Fidelis Medicare Advantage

In Network Coverage Type
HMO

Healthfirst

In Network Coverage Type
EPO, HMO, PPO, POS

Offers a qualified health plan from the Health Insurance Marketplace. Call Healthfirst to learn more.

Healthfirst Managed Medicaid

In Network Coverage Type
HMO

Healthfirst Medicare Advantage

In Network Coverage Type
HMO, PPO

Healthsmart

In Network Coverage Type
PPO EPO

Horizon Blue Cross Blue Shield New Jersey (HMO)

In Network Coverage Type
HMO

See updates

Horizon Blue Cross Blue Shield New Jersey (PPO)

In Network Coverage Type
PPO

See updates

Horizon Blue Cross Blue Shield New Jersey Omnia Tier I (EPO)

In Network Coverage Type
EPO

See updates

Horizon Blue Cross Blue Shield New Jersey Omnia Tier II (EPO)

In Network Coverage Type
EPO

See updates

Horizon Medicare Advantage

In Network Coverage Type
PPO, HMO

Husky CT Medicaid

In Network Coverage Type
State Government

Magnacare

In Network Coverage Type
PPO, POS, EPO

Medicare Part A&B (traditional Medicare)

In Network Coverage Type
Federal Government

Metroplus

In Network Coverage Type
HMO

City Employee Health Plans (Gold and Gold Care)

Multiplan/Beech Street/PHCS

In Network Coverage Type
Supplemental

MVP

In Network Coverage Type
PPO/OAP

Non-Participating Plans with Out of Network Benefits

In Network Coverage Type
PPO, POS, EPO, HMO

NYC Medicare Advantage Plus for City Employees

In Network Coverage Type
TBD

Oscar

In Network Coverage Type
HMO/EPO

Oxford

In Network Coverage Type
PPO, EPO

World Trade Center Health Program (WTC)

In Network Coverage Type
State Government

Qualcare

In Network Coverage Type
PPO, POS, HMO

Tricare

In Network Coverage Type
PPO, HMO

UMR

In Network Coverage Type
PPO, POS

United Healthcare

In Network Coverage Type
PPO, POS, HMO

Don't see your carrier or plan? We can help you understand your coverage.

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.

If you have questions about insurance, call us at 646-497-9176.

Contact and Location

Dr. Rosen sees patients at two locations.

Early Drug Development Service Breast Medicine
Location
New York, NY
Evelyn H. Lauder Breast Center
300 East 66th Street Floors 1 - 4 New York NY 10065
Get Directions
David H. Koch Center for Cancer Care at Memorial Sloan Kettering Cancer Center
530 East 74th Street New York NY 10021
Get Directions
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Looking to see a doctor at a different location? See all MSK locations.

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.

See all Early Drug Development Service doctors

See all Breast Medicine Service doctors

Clinical Trials

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Smiling doctors in the lab
Find a Clinical Trial for You

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 trials

Patient Reviews

Your trust is our main concern

We strive to keep reviews trustworthy, honest and fair. Learn more about our patient experience reviews.

4.9 118 reviews

  • 4.8 Provider's Explanations Easy to Understand
  • 4.9 Trusts Provider with Care
  • 4.8 Provider Listened Carefully
  • 4.9 Likelihood of Recommending Provider
Mar 20, 2025

Very pleasant!

Feb 27, 2025

I very much appreciate Dr. Rosen and his care for me. I really feel that he along with my surgeon, Dr. El-Temer, have saved my life. I always trust them and enjoy coming in there. Very positive, intelligent experience with their knowledge. I really appreciate them and thank them always. I would recommend he to anyone. Thank you very much, Dr. Rosen.

Feb 27, 2025

Dr Rosen was amazing. Very compassionate & knowledgeable! Provided great information on my care; listened to my concerns & addressed them! Dr Rosen & his staff are awesome! What a great asset to MSK!

Feb 13, 2025

The doctor was great. I am still waiting to hear from scheduling to get the providers orders for procedures and test scheduled. I have been informed they are to call me. It is now 2 days since the appointment and I am anxious to hear from them.

Jan 23, 2025

Dr. Rosen and his team practice compassion and deploy expertise in equal measures: extremely high. I feel not only heard and skillfully managed but also lucky that _this_ is the caliber of care that I get to receive. All this and he's an interesting human. Rave!

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Disclosures

Doctors and faculty members often work with pharmaceutical, device, biotechnology, and life sciences companies, and other organizations outside of MSK, to find safe and effective cancer treatments, to improve patient care, and to educate the health care community.

MSK requires doctors and faculty members to report (“disclose”) the relationships and financial interests they have with external entities. As a commitment to transparency with our community, we make that information available to the public.

Ezra Rosen discloses the following relationships and financial interests:

  • eFFECTOR Therapeutics
    Professional Services and Activities (Uncompensated)

If you’re a patient at MSK and would like more information about your doctor’s external relationships, please talk with your doctor.

The information published here is a complement to other publicly reported data and is for a specific annual disclosure period. There may be differences between information on this and other public sites as a result of different reporting periods and/or the various ways relationships and financial interests are categorized by organizations that publish such data.

This page and data include information for a specific MSK annual disclosure period (January 1, 2023 through disclosure submission in spring 2024). This data reflects interests that may or may not still exist. This data is updated annually.

Learn more about MSK’s COI policies here. For questions regarding MSK’s COI-related policies and procedures, email MSK’s Compliance Office at ecoi@mskcc.org.


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