About Walter O'Donnell, MD

Departments, Centers, & Programs:

Clinical Interests:

Treats:

Locations

Mass General Pulmonary & Critical Care
55 Fruit St.
Boston, MA 02114
Phone: 617-726-1721

Medical Education

  • MD, Weill Cornell Medical College
  • Residency, Brigham and Women's Hospital
  • Fellowship, Brigham and Women's Hospital

American Board Certifications

  • Internal Medicine, American Board of Internal Medicine

Note: This provider may accept more insurance plans than shown; please call the practice to find out if your plan is accepted.

Reviews: Comments and Ratings

4.9out of 5(203 Ratings, 113 Comments)

February 2025

Everything was amazing. Everyone was amazing. Everything was done in a timely manner and I seriously don't have any complaints at all. I was actually very surprised on how smooth everything was and how straightforward and clear everything was explained to me. And all the nurses and my doctor at the time listened and explained to me everything that ... Read More


February 2025

Dr. O'Donnell, [redacted] & [redacted] are an excellent team. They can't be beat.


February 2025

I have been a patient of Dr. O'donnell's for numerous years. The man is always thorough, spends as much time that the patient needs, answers any questions, asks if there's anything more he can do, and I would recommend him to anyone. I'm very, very pleased with him, and I hope he never retires. Thank you.


February 2025

Dr. O'Donnell was very knowledgeable about my diagnosis.


February 2025

Dr O'Donnell is a first class doctor of medicine. He is thoughtful in his questions. He is empathetic to my concerns. He and his practice are always and quickly responsive to any needs I may have.


January 2025

Dr. O'Donnell is just terrific, he spent quite a bit of time with me and got a complete health history. His expertise and kind manner are the reasons why he is an excellent physician.


January 2025

Dr. O'Donnell is the best


January 2025

Total excellence in his professionalism


January 2025

I trust and respect Dr O'Donnell. He has a wonderfully calming nature and a gentle personality.


January 2025

very pleased with his care for patient.

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