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Dr. John McGrath III, MD
Radiation Oncology* Age 61
Dr. John McGrath III, MD
5.0 (1 Ratings)

Offers telehealth

Dr. John McGrath III, MD is a Radiation Oncologist in Concord, MA.
(978) 287-3290
Dr. John McGrath III, MD
5.0 (1 Ratings)

Dr. John McGrath III, MD

Radiation Oncology* Age 61
Concord, MA
Accepting new patients
33 years of experience

Offers telehealth

Dr. John McGrath III, MD is a Radiation Oncologist in Concord, MA.
(978) 287-3290

About Dr. John McGrath III, MD

Dr. McGrath III graduated from UNIVERSITY OF VERMONT AND STATE AGRICULTURAL COLLEGE. Dr. John McGrath III, MD is a Radiation Oncologist in Concord, MA and has 33 years experience. Dr. McGrath III currently practices at Emerson Hospital and is affiliated with Massachusetts General Hospital and Emerson Hospital. Dr. McGrath III has experience treating conditions like Esophageal Cancer among other conditions at varying frequencies. Dr. McGrath III's office accepts new patients and telehealth appointments. Dr. McGrath III is board certified in Radiation Oncology and accepts multiple insurance plans.

Offers Telehealth

This provider offers telehealth appointments. Call the office to schedule.

Explains Conditions Well

Patients said this doctor explains conditions well.

Trustworthy

Patients said this doctor is trustworthy.

Low Wait Times

Patients are usually seen in 10 minutes or less.

Friendly Staff

Patients said the staff was friendly.

Easy Scheduling

Patients said scheduling was easy.

Experience Check

Enter a condition or procedure
Esophageal Cancer
Prostate Cancer
Upper Digestive Tract Cancer
Esophageal Cancer
Prostate Cancer
Upper Digestive Tract Cancer
Breast Cancer
Hodgkin's Disease
Oral Cancer
Thyroid Cancer
Bone Cancer
Ductal Carcinoma in Situ
Male Breast Carcinoma
Lung Cancer
Metastatic Respiratory System Cancer
Brain Cancer
Uterine Cancer
Osteosarcoma
Nodular Sclerosis Hodgkins Lymphoma
Endocrine Gland Cancer
Non-Hodgkin's Lymphoma
Anal and Rectal Cancer
Neuroendocrine Tumors
Tongue Cancer
Adrenal Gland Cancer
Benign Mediastinal Tumor
Biliary Tract Cancer
Cancer of Cerebral Meninges
Cervical Cancer
Chordoma
  • View other providers who treat Chordoma
Colorectal Cancer
Diffuse Large B-Cell Lymphoma
Ewing's Sarcoma
Eye Cancer
Follicular Lymphoma Grade 2
Hypothalamus Cancer
Liver Cancer
Male Breast Cancer
Malignant Pituitary Gland Tumor
Marginal Zone Lymphoma
Metastatic Breast Cancer
Mixed-Cellularity Hodgkins Lymphoma
Mycosis Fungoides
Nodular Lymphoma
Nose Cancer
Pancreatic Cancer
Peripheral T-Cell Lymphoma
Peritoneal Cancer
Prostate Carcinoma
Retroperitoneum Cancer
Soft Tissue Sarcoma
Stomach Cancer
Thymomas
  • View other providers who treat Thymomas
Urinary Tract Cancer
Vulvar Cancer
Vulvovaginal Rhabdomyosarcoma
Cardiac SPECT Imaging
PET-CT Scan
Ultrasound Guided Procedures

Accepted Insurance Plans

* Please verify this information when scheduling an appointment.
  • Choice Plus POS
    Navigate POS
    Nexus Open Access
    Options PPO
    Navigate HMO
    Medica Choice
  • Blue Card PPO
  • MVP Health Care PPO
    MVP Health Plan EPO
  • Curative PPO
    Curative PPO Plus
    Curative EPO
  • Elect Choice (Open Access) EPO
    Open Choice PPO
    Aetna
    Select
    Choice Plus POS II
    Managed Choice (Open Access) POS
  • Maines Choice - Standard HMO
    Harvard Pilgrim Health Care PPO
    Harvard Pilgrim Health Care HMO
  • Preferred Blue PPO
    Blue Cross Blue Shield of Massachusetts PPO
  • Complete HMO
    Complete PPO Plus
  • First Health (Coventry Health Care) PPO
  • Flex Connecticut EPO
  • Choice POS
    Choice Care PPO
    Choice Care Network PPO

Where Dr. John McGrath III, MD Sees Patients

  1. 1 Emerson Hospital
    133 Old Road To 9 Acre Cor, Concord, MA 01742
  2. 2 Russell B. Butler MD PC
    131 Old Road To 9 Acre Cor, Concord, MA 01742
  3. 3 Office
    9142 PO Box, Charlestown, MA 02129

What Patients Say

Likelihood to recommend Dr. McGrath III
5.0
Based on 1 Reviews
5 Stars (1)
4 Stars (0)
3 Stars (0)
2 Stars (0)
1 Star (0)

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Patient Reviews
Jul 31, 2025
Dr McGrath and his staff are exceptional. Extremely professional. They instill a sense of confidence in every patient and their family during very stressful situations.
Sheryl Galanis — Jul 31, 2025
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Telehealth Options
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(978) 287-3290

Meet Dr. John McGrath III, MD

Specialties*
Radiation Oncology
Specialties*
  • *Sharecare does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
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FAQs About Dr. McGrath III's Practice

Find contact information here to make an appointment.

A list of accepted insurance providers is available on the Sharecare insurance check. It is always a good idea to verify your insurance when making an appointment.

New patients are generally accepted by Dr. John McGrath III, MD. To arrange an appointment, call the number on Dr. McGrath III's profile.

Dr. John McGrath III, MD is affiliated with Massachusetts General Hospital and Emerson Hospital.

Yes, Dr. John McGrath III, MD holds board certification in Radiation Oncology.

Training & Medical Education
Medical Education
  • UNIVERSITY OF VERMONT AND STATE AGRICULTURAL COLLEGE
    1993
Medical Education
Board Certifications
  • Radiation Oncology
Board Certifications
What’s a board certification and why is it important that my provider has one?

A board certification represents a provider’s dedication to ongoing training in one or more specialties, including the completion of intensive exams. While not all specialties have board certifications, if your provider does have one they’ve taken the extra step to master their specialty and to keep up with the latest advancements in their field.

Hospitals Where Dr. John McGrath III, MD Practices

  • Massachusetts General Hospital

    55 Fruit St, Boston, MA

  • Emerson Hospital

    133 Old Road To 9 Acre Cor, Concord, MA

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