Second Opinion Service - Imaging

Massachusetts General Hospital’s specialty-trained radiologists provide a written second opinion on your diagnostic imaging tests, including X-ray, CT, MRI, PET, and ultrasound examinations.

Why choose Mass General for a second opinion?

Specialist radiologists interpret imaging exams


Mass General Imaging
Second Opinion Service

175 Cambridge Street, Suite 200
Boston, MA 02114

As a patient, you have your choice of which doctors should interpret your medical imaging examinations. Our unique second-opinion service allows you to access Mass General’s subspecialty radiologists, who are also faculty at Harvard Medical School. After reviewing your diagnostic tests, our specialists will provide a written second-opinion interpretation to you and your referring physician for X-rays, CTs, MRIs, PET scans and ultrasound examinations. Your interpretation is provided by a radiologist with specialty training in the area of the body being studied.

Specialty Expertise:

How to get a second opinion

  • Register online using POSC (Partners Online Specialty Consultations).
  • If you have any questions, please contact POSC by telephone at 617-724-9295 or 888-456-5003.
    A representative can speak with you to help guide you through the process.
  • Alternatively, feel free to email us at
    or call us directly at 617-643-9820.



Imaging: Powered by radiology specialists

Learn more about the Department of Radiology, the clinical force behind Mass General Imaging.


Mass General Imaging global initiatives

Training, technology transfer, and clinical service for vulnerable and crisis-affected populations.