Share
New Patient Appointments
Scheduling a visit is easy. Click below or call us to get started.
Schedule an Appointment
800-525-2225
Monday through Friday, 8:00 a.m. to 6:00 p.m., (Eastern time)
Accepted Insurance Providers
Dr. Barker accepts the following list of insurance providers. Select your insurance provider to see more details.
Aetna
Payor Type: Commercial
In Network Coverage Type(s): HMO, EPO PPO, POS, Transplant
Aetna Medicare Advantage (City of NY retirees only, starting 7/1/23)
Payor Type:
In Network Coverage Type(s): PPO
Blue Cross Blue Shield Federal Employee Program
Payor Type: Commercial
In Network Coverage Type(s): HMO, PPO
Blue Cross Blue Shield New York
Payor Type: Commercial
In Network Coverage Type(s): PPO, POS, EPO, HMO
Blue Cross Blue Shield states outside of NY/NJ
Payor Type: Commercial
In Network Coverage Type(s): HMO, EPO PPO, POS
Blue Cross Health Plus
Payor Type: Medicaid/Managed Medicaid
In Network Coverage Type(s): HMO
Carrum Health
Payor Type: Commercial
In Network Coverage Type(s): Supplemental
Cigna
Payor Type: Commercial
In Network Coverage Type(s): PPO, POS, HMO
Connecticare
Payor Type: Commercial
In Network Coverage Type(s): POS, EPO, HMO
Emblem
Payor Type: Commercial
In Network Coverage Type(s): PPO, POS, EPO, HMO
Emblem Essential
Payor Type: Medicaid/Managed Medicaid
In Network Coverage Type(s): HMO
Emblem Medicare Advantage
Payor Type:
In Network Coverage Type(s): PPO, HMO
Empire Blue Cross Medicare Advantage
Payor Type:
In Network Coverage Type(s): PPO, HMO, DSN
Empire Essential
Payor Type: Medicaid/Managed Medicaid
In Network Coverage Type(s): HMO
Empire Plan / NYSHIP (Blue Cross/UnitedHealthcare split plan)
Payor Type: Commercial
In Network Coverage Type(s): PPO
Fidelis
Payor Type: Commercial
In Network Coverage Type(s): HMO, EPO
Fidelis Managed Medicaid & HARP
Payor Type: Medicaid/Managed Medicaid
In Network Coverage Type(s): HMO
Fidelis Medicare Advantage
Payor Type:
In Network Coverage Type(s): HMO
First Health
Payor Type:
In Network Coverage Type(s): PPO
Healthfirst
Payor Type: Commercial
In Network Coverage Type(s): EPO, HMO, PPO, POS
Healthfirst Managed Medicaid
Payor Type: Medicaid/Managed Medicaid
In Network Coverage Type(s): HMO
Healthfirst Medicare Advantage
Payor Type:
In Network Coverage Type(s): HMO, PPO
Healthsmart
Payor Type: Commercial
In Network Coverage Type(s): PPO EPO
Horizon Blue Cross Blue Shield New Jersey (HMO)
Payor Type: Commercial
In Network Coverage Type(s): HMO
Horizon Blue Cross Blue Shield New Jersey (PPO)
Payor Type: Commercial
In Network Coverage Type(s): PPO
Horizon Blue Cross Blue Shield New Jersey Omnia Tier I (EPO)
Payor Type: Commercial
In Network Coverage Type(s): EPO
Horizon Blue Cross Blue Shield New Jersey Omnia Tier II (EPO)
Payor Type: Commercial
In Network Coverage Type(s): EPO
Horizon Medicare Advantage
Payor Type:
In Network Coverage Type(s): PPO, HMO
Husky CT Medicaid
Payor Type: Medicaid/Managed Medicaid
In Network Coverage Type(s): State Government
Magnacare
Payor Type: Commercial
In Network Coverage Type(s): PPO, POS, EPO
Medicare Part A&B (traditional Medicare)
Payor Type:
In Network Coverage Type(s): Federal Government
Multiplan/Beech Street/PHCS
Payor Type: Commercial
In Network Coverage Type(s): Supplemental
MVP
Payor Type: Commercial
In Network Coverage Type(s): PPO/OAP
Non-Participating Plans with Out of Network Benefits
Payor Type: Other
In Network Coverage Type(s): PPO, POS, EPO, HMO
NYC Medicare Advantage Plus for City Employees
Payor Type:
In Network Coverage Type(s): TBD
Oscar
Payor Type: Commercial
In Network Coverage Type(s): HMO/EPO
Oxford
Payor Type: Commercial
In Network Coverage Type(s): PPO, EPO
Qualcare
Payor Type: Commercial
In Network Coverage Type(s): PPO, POS, HMO
Straight NJ Medicaid
Payor Type: Medicaid/Managed Medicaid
In Network Coverage Type(s): State Government
Straight NY Medicaid
Payor Type: Medicaid/Managed Medicaid
In Network Coverage Type(s): State Government
Tricare
Payor Type: Commercial
In Network Coverage Type(s): PPO, HMO
UMR
Payor Type: Commercial
In Network Coverage Type(s): PPO, POS
United Healthcare
Payor Type: Commercial
In Network Coverage Type(s): PPO, POS, HMO
World Trade Center Health Program (WTC)
Payor Type: Commercial
In Network Coverage Type(s): State Government
Contact and Location
- 212-639-8168 Office Phone
- Speaks English
- New York City
- Memorial Sloan Kettering Westchester West Harrison, NY
Find a Convenient Location
Memorial Sloan Kettering has locations throughout New York City, Long Island, New Jersey, and Westchester. These locations offer many services, including screening, chemotherapy, and medical testing.
See all locations
About Me
Education
MD, University of Florida
Residencies
Radiation Oncology - Memorial Sloan Kettering Cancer Center
Fellowships
National Cancer Institute; Memorial Sloan Kettering Cancer Center
Board Certifications
Radiation Oncology
I am a board-certified radiation oncologist who specializes in the treatment of skin cancer (including melanoma) and eye cancer with radiation therapy. I am one of a few radiation oncologists in the country who focus on these diseases. I work closely with a dedicated team of experts. We use advanced radiation techniques to deliver the best possible care to our patients. Some of these techniques include superficial x-ray therapy, electronic and radioisotope-based brachytherapy, stereotactic radiosurgery, and proton therapy. At MSK, we strive to come up with the best solution for even the most rare and challenging problems. I have been a member of the MSK team since 2006. I see patients at Memorial Hospital in Manhattan and MSK Westchester.
Read more
I am an active biomedical researcher. My goal is to develop more effective cancer treatments using radiation therapy. Prior to joining MSK, I was a Howard Hughes Medical Institute Research Scholar in the Radiation Oncology Branch of the National Cancer Institute. There I developed an interest in combining cancer medicines with radiation therapy to make treatment more effective. Along with my colleagues in the Immunology Program and the Departments of Medicine and Surgery at MSK, I have developed several clinical trials. Many of these combine novel targeted and immune therapies with radiation therapy for different cancers.
Another major goal of my research is to find better ways to protect our patients from potential radiation therapy side effects. To do this, I work closely with the Medical Physics Department. Some of these new techniques are more convenient for our patients because fewer treatment sessions are required. We have several clinical trials in this area.
My research has been supported by the American Society for Radiation Oncology, the Lymphoma Research Foundation, and the National Institutes of Health. I have authored chapters in major medical textbooks as well as peer-reviewed research studies in journals. These include the New England Journal of Medicine, the Journal of Clinical Oncology, the Journal of the National Cancer Institute, Clinical Cancer Research, Radiation Research, and the International Journal of Radiation Oncology, Biology, and Physics.
I teach others about radiation oncology and skin cancer. I frequently give invited presentations on these subjects at national and international meetings.
In the Department of Radiation Oncology, I lead the clinical research program as Director of Clinical Investigation. This program enables the study of cutting-edge radiation treatments for cancers of all types, as well as targeted and immune therapies with radiation therapy. They offer a unique opportunity for our patients in their fight against cancer.
At MSK, we strive to come up with the best solution for even the most rare and challenging problems. -Dr. Barker
Awards and Honors
- Castle Connolly: America's Top Doctors (2023)
- Castle Connolly: New York Magazine Top Doctors (2019-2020)
- Castle Connolly Top Doctors New York Metro Area (2016-2020)
- Super Doctors New York Rising Stars
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 External Beam Radiotherapy Service, Manhattan doctors
See all Brachytherapy Service doctors
See all Proton Therapy doctors
Clinical Trials
- Clinical Trials Investigated by Dr. Barker
- A Phase II Study of Radiation Therapy and Cemiplimab Immunotherapy for People with Inoperable Skin Cancer
- A Phase II Study of Radiation Therapy Guided by Special Imaging Techniques in People with Basal Cell Skin Cancer
- A Phase II Study of Radiation Therapy with or without Avelumab in People with Advanced Merkel Cell Carcinoma
- Clinical Trials Co-Investigated by Dr. Barker
- A Phase II Study of Axitinib/Nivolumab Alone and with Ipilimumab or Radiation Therapy to Treat Previously Untreated Advanced Mucosal Melanoma
Read more
- A Phase II Study of Proton versus Photon Beam Radiotherapy to Treat Head and Neck Cancer
- A Phase III Study of Cemiplimab Immunotherapy versus Placebo to Reduce the Risk of Cancer Recurrence after Surgery and Radiation Therapy in Patients with High-Risk Cutaneous Squamous Cell Carcinoma
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. Barker’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.
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.
Christopher A. Barker discloses the following relationships and financial interests:
- Castle Biosciences
Provision of Services (uncompensated)
- Regeneron Pharmaceuticals, Inc.
Provision of Services
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 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, 2021 through disclosure submission in spring 2022). 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 [emailprotected].
View all disclosures