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Anton Safonov

Anton Safonov, MD

Breast Medical Oncologist

4.9 | 155 reviews

Areas of Expertise

Conditions I Treat

  • Breast cancers and conditions

My Specialties

  • Biomarker testing
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Dr. Safonov's Office Information
Languages: English
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Get to Know Me

I am a medical oncologist dedicated to the care of people with breast cancer. I see patients at MSK Nassau in Long Island.

A diagnosis of breast cancer can be life-changing, and the specific challenges involved will vary from patient to patient. It is my aim to help patients and their families navigate this uncertain time; I make it my mission to do so in a compassionate, positive manner that meets each patient’s unique set of values, perspectives, and life milestones. My goal at the end of every visit is for each patient to clearly understand what lies ahead and feel empowered to make informed decisions every step of the way.

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My research focuses on improving the effectiveness of breast cancer therapies. Like patient care, this is not a “one size fits all” approach. By uncovering the molecular “clockwork” of different types of breast cancer, we can understand why some therapies work better than others in specific cases. To this end, I hope to leverage our understanding of cancer genomics (genes and the genome) to develop biomarkers that tell us if the cancer will respond to treatment. The ultimate goal of this research is to tailor therapies to each patient, based on the molecular characteristics of their cancer.

I am very fortunate to work alongside remarkable colleagues in pathology, radiology, surgical oncology, radiation oncology, and plastic surgery, as well as our world-class nurses, advanced practitioners, pharmacists, and clinical administrative staff. I want each of my patients to leave the clinic feeling like the most important member of this care team.

What I Do at MSK

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

  • Co-Director, Breast Molecular Tumor Board
Areas of Expertise

Conditions I Treat

  • Breast cancers and conditions

My Specialties

  • Biomarker testing
Education & Honors

Education

  • MD, Yale School of Medicine

Residencies

  • Internal Medicine, Hospital of University of Pennsylvania

Fellowships

  • Medical Oncology, Memorial Sloan Kettering Cancer Center

Board Certifications

  • Internal Medicine

Awards and Honors

  • Conquer Cancer Foundation Merit Award, American Society of Clinical Oncology (2022)
  • Conquer Cancer Foundation, American Society of Clinical Oncology Young Investigator Award (2021)
  • Clinical Scholar Award, San Antonio Breast Cancer Symposium (2021)

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.

Make an Appointment

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New Patients
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Current Patients
Request an appointment by logging in to MSK MyChart or calling your Care Team. If you are not enrolled in MSK MyChart, ask your Care Team to send you an invitation. You can also go to MSK MyChart and select “Sign up now.”

Contact and Location

Dr. Safonov sees patients at one location.

Office Phone
Location
Uniondale, NY
Memorial Sloan Kettering Nassau
1101 Hempstead Turnpike Uniondale NY 11553
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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.

See all Breast Medicine Service doctors

Clinical Trials

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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

Research and Publications

Publications on PubMed

Visit PubMed for a full listing of Dr. Safonov’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 PubMed

Patient Reviews

Your trust is our main concern

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

4.9 155 reviews

  • 4.9 Provider's Explanations Easy to Understand
  • 5.0 Trusts Provider with Care
  • 4.9 Provider Listened Carefully
  • 4.9 Likelihood of Recommending Provider
Mar 27, 2025

MSK has made it that I look forward to seeing and talking to my team. I am grateful to MSK for maintaining me healthy and keeping me alive.

Mar 21, 2025

Dr Safonov was very easy to talk to & explained a lot of things in ways that I could understand. He's definitely someone I would want to have involved in my healthcare.

Mar 7, 2025

Dr. Safonov is always very personable, professional and patient. I am so thankful that he's my doctor. His team as well are both friendly and professional.

Mar 7, 2025

My experiences at MSK have always been very pleasant, and also very informative. I would highly recommend MSK.

Mar 6, 2025

MSK Staff is warming & welcoming.. Medical care is Great toward the patients

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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.

Anton Safonov discloses the following relationships and financial interests:

No disclosures meeting criteria for time period


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.


View all disclosures