


Dr. John McGrath III, MD
Dr. John McGrath III, MD is a radiation oncologist in Concord, MA and has over 30 years of experience in the medical field. He graduated from UNIVERSITY OF VERMONT AND STATE AGRICULTURAL COLLEGE in 1993. He is affiliated with medical facilities Massachusetts General Hospital and Emerson Hospital. He is accepting new patients and telehealth appointments.
Practice
133 Old Road To 9 Acre Cor Concord, MA 01742Make an Appointment
Hospital Highlight
Dr. McGrath III is affiliated with Massachusetts General Hospital Boston, a highly rated hospital.
At a Glance
- Area of Expertise
- Explains Conditions Well
- Offers TelehealthThis doctor offers telehealth appointments. Call the office to schedule an appointment.
- Practices at Top Hospital

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Dr. McGrath III's Reviews
Likelihood to recommend Dr. McGrath III
5.0
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How was your experience with Dr. McGrath III?Overall Patient Satisfaction
Likelihood of recommending Dr. McGrath III to family and friends is 5 out of 5
About Me
biography
Dr. John McGrath III, MD is a radiation oncologist in Concord, MA and has over 30 years of experience in the medical field. He graduated from UNIVERSITY OF VERMONT AND STATE AGRICULTURAL COLLEGE in 1993. He is affiliated with medical facilities...read moreRadiation Oncology
*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
University Of Vermont And State Agricultural College
Medical School, 1993
Healthgrades receives board action history for physicians and physician assistants. The information displayed here is sourced from independent information providers, such as state board websites, and may not be the most up-to-date information. Healthgrades makes no representations with respect to the accuracy of any information provided here and assumes no responsibility or liability for such information.
Learn more about medical license public record checkFocus on Breast Cancer
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Affiliated Hospitals
- Recipient of 31
hospital awardsAmerica's 250 Best Hospitals Award™ (2025, 2024)
Top in the nation for overall patient experience based on nine measures related to doctor and nurse communication, hospital cleanliness and noise levels, and medication and post-discharge care instructions
View all awardsSurgical Care Excellence Award™ (2025)
Top in the nation for overall patient experience based on nine measures related to doctor and nurse communication, hospital cleanliness and noise levels, and medication and post-discharge care instructions
View all patient feedbackHow patients felt about the care they received at this hospital.
90%Patients said they were given information about recovering at home6% higher than the national average
86%Patients would recommend the hospital to friends and family21% higher than the national average
- Recipient of 6
hospital awardsOutstanding Patient Experience Award™ (2023, 2022)
Top in the nation for overall patient experience based on nine measures related to doctor and nurse communication, hospital cleanliness and noise levels, and medication and post-discharge care instructions
View all awardsPatient Safety Excellence Award™ (2023)
Top in the nation for overall patient experience based on nine measures related to doctor and nurse communication, hospital cleanliness and noise levels, and medication and post-discharge care instructions
View all patient feedbackHow patients felt about the care they received at this hospital.
88%Patients said they were given information about recovering at home4% higher than the national average
80%Patients said that doctors always listened to them and explained things well4% higher than the national average
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