Robert D Stewart - Radiation Oncology | Mount Sinai

About Me

Robert Stewart, M.D., is a radiation oncologist specializing in the treatment of Head and Neck, Genitourinary and Ocular Malignancies. He uses many advanced techniques such Intensity Modulated Radiation Therapy (IMRT), Image Guided Radiation Therapy (IGRT), Stereotactic Body Radiation Therapy (SBRT), and brachytherapy to maximize local control and cure of the cancer while minimizing radiation side effects to healthy tissue.

Dr. Stewart graduated from Dalhousie University with a medical degree. He completed his Residency in Radiation Oncology at the Juravinski Cancer Center through McMaster University. Dr. Stewart then went on to complete a Fellowship in Brachytherapy through the Icahn School of Medicine at Mount Sinai Beth Israel Hospital.

Dr. Stewart’s primary research focus is attempting to improve clinical outcomes while limiting side effects in management of prostate cancer. In addition, Dr. Stewart has conducted research in the areas of adaptive treatment for Head and Neck Cancer and Intraoperative Radiotherapy. His work has resulted in multiple presentations at international meetings.

Language

English

Position

ASSISTANT PROFESSOR | Radiation Oncology

Hospital Affiliations

Mount Sinai Morningside
Mount Sinai Beth Israel
Mount Sinai Brooklyn
Mount Sinai Queens
The Mount Sinai Hospital
New York Eye and Ear Infirmary of Mount Sinai
Mount Sinai West

About Me

Robert Stewart, M.D., is a radiation oncologist specializing in the treatment of Head and Neck, Genitourinary and Ocular Malignancies. He uses many advanced techniques such Intensity Modulated Radiation Therapy (IMRT), Image Guided Radiation Therapy (IGRT), Stereotactic Body Radiation Therapy (SBRT), and brachytherapy to maximize local control and cure of the cancer while minimizing radiation side effects to healthy tissue.

Dr. Stewart graduated from Dalhousie University with a medical degree. He completed his Residency in Radiation Oncology at the Juravinski Cancer Center through McMaster University. Dr. Stewart then went on to complete a Fellowship in Brachytherapy through the Icahn School of Medicine at Mount Sinai Beth Israel Hospital.

Dr. Stewart’s primary research focus is attempting to improve clinical outcomes while limiting side effects in management of prostate cancer. In addition, Dr. Stewart has conducted research in the areas of adaptive treatment for Head and Neck Cancer and Intraoperative Radiotherapy. His work has resulted in multiple presentations at international meetings.

Language

English

Position

ASSISTANT PROFESSOR | Radiation Oncology

Hospital Affiliations

Mount Sinai Morningside
Mount Sinai Beth Israel
Mount Sinai Brooklyn
Mount Sinai Queens
The Mount Sinai Hospital
New York Eye and Ear Infirmary of Mount Sinai
Mount Sinai West

Clinical Focus

Brain Tumor And Brain Cancer
Esophageal Cancer
Laryngeal Cancer
Prostate Cancer
Prostate-Specific Antigen (PSA) Test
Radiation Therapy
Stereotactic Radiosurgery
Throat Cancer
Thyroid Cancer

Education

MD, Dalhousie University Faculty of Medicine

Residency, Radiation Oncology

Hamilton General Hospital/Hamilton Health Services

Fellowship, Radiation Oncology

Mount Sinai Beth Israel

Locations

Mount Sinai Union Square

10 Union Square East, Suite 4F, New York, NY, 10003

212-844-8486

The Blavatnik Family – Chelsea Medical Center

325 West 15th Street, (between 8th and 9th Avenues), New York, NY, 10011

212-604-6080

Insurance Information

Accepted insurance may vary by the doctor’s office location. Please contact the office directly to obtain the most up-to-date insurance information.

Mount Sinai Union Square10 Union Square East, Suite 4F, New York, NY, 10003

The Blavatnik Family – Chelsea Medical Center325 West 15th Street, (between 8th and 9th Avenues), New York, NY, 10011

Physicians who provide services at hospitals and facilities in the Mount Sinai Health System might not participate in the same health plans as those Mount Sinai hospitals and facilities (even if the physicians are employed or contracted by those hospitals or facilities).

Information regarding insurance participation and billing by this physician may be found on this page, and can also be obtained by contacting this provider directly. Because physicians insurance participation can change, the insurance information on this page may not always be up-to-date. Please contact this physician directly to obtain the most up-to-date insurance information.

Insurance and health plan networks that the various Mount Sinai Health System hospitals and facilities participate in can be found on the Mount Sinai Health System website.

Publications

View All Publications

Patient Experience Rating

The Patient Experience Star Rating reflects our patients’ perception of how well their Mount Sinai provider communicated with them during an office visit. The Star Rating is based on patient responses to three questions on a patient experience survey, a standardized questionnaire sent to verified patients and distributed by a third party vendor, Press Ganey. Responses are measured on a scale of 1 to 5, with 5 being the best score.

Care Provider’s Explanation

4.8 out of 5

Care Provider’s Concern

4.9 out of 5

Likelihood to Recommend Care Provider

4.8 out of 5

Industry Relationships

Physicians and scientists on the faculty of the Icahn School of Medicine at Mount Sinai often interact with pharmaceutical, device and biotechnology companies to improve patient care, develop new therapies and achieve scientific breakthroughs. In order to promote an ethical and transparent environment for conducting research, providing clinical care and teaching, Mount Sinai requires that salaried faculty inform the School of their relationships with such companies.

Dr. Stewart did not report having any of the following types of financial relationships with industry during 2022 and/or 2023: consulting, scientific advisory board, industry-sponsored lectures, service on Board of Directors, participation on industry-sponsored committees, equity ownership valued at greater than 5% of a publicly traded company or any value in a privately held company. Please note that this information may differ from information posted on corporate sites due to timing or classification differences.

Mount Sinai's faculty policies relating to faculty collaboration with industry are posted on our website. Patients may wish to ask their physician about the activities they perform for companies.

Robert D Stewart, MD

Radiation Oncology

About Me

Language

Position

Hospital Affiliations

About Me

Language

Position

Hospital Affiliations

Clinical Focus

Education

MD, Dalhousie University Faculty of Medicine

Residency, Radiation Oncology

Fellowship, Radiation Oncology

Locations

Mount Sinai Union Square

The Blavatnik Family – Chelsea Medical Center

Insurance Information

Publications

Patient Experience Rating ?

Care Provider’s Explanation

Care Provider’s Concern

Likelihood to Recommend Care Provider

Industry Relationships

Patient Experience Rating