John McLeod
I met Dr. Blaszkowsky on my fifty-first birthday, so I consider he and the cancer care team to be the best birthday present I've ever had!
Contact Information
Boston, MAPhone: 617-726-5130
Newton, MAPhone: 617-219-1230
Departments, Centers, & Programs:
Clinical Interests:
Treats:
Mass General Brigham Cancer Institute
55 Fruit St.
Boston, MA 02114
Phone: 617-726-5130
Phone: 877-726-5130
Mass General Brigham Cancer Institute at Newton-Wellesley Hospital
2014 Washington St.
Newton, MA 02462
Phone: 617-219-1230
Medical Education
American Board Certifications
Note: This provider may accept more insurance plans than shown; please call the practice to find out if your plan is accepted.
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Mass General has two proton therapy centers and is the only hospital in New England to offer proton therapy on site.
Mass General is recognized as a top hospital on the U.S. News Best Hospitals Honor Roll for 2025-2026.
I met Dr. Blaszkowsky on my fifty-first birthday, so I consider he and the cancer care team to be the best birthday present I've ever had!
Billy Costa talks with Dr. Robb Friedman, Dr. Amy Comander, and Dr. Larry Blaszkowsky about how the care teams at Mass General Cancer Center's community locations provide patients with access to world-class cancer care close to home.

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