


Dr. Ioannis Mastoris, MD
Dr. Ioannis Mastoris, MD is a cardiologist in Boston, MA. He is affiliated with medical facilities such as Massachusetts General Hospital and North Shore Medical Center.
Practice
32 Fruit St Boston, MA 02114Compare with other Cardiologists
Compare Dr. Mastoris with our nearby Cardiologists at Lawrence Memorial Hospital of Medford.
Make an appointment at Lawrence Memorial Hospital of Medford today at
(781) 334-8748.
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Dr. Mastoris' Reviews
Overall Patient Satisfaction
About Me
biography
Dr. Ioannis Mastoris, MD is a cardiologist in Boston, MA. He is affiliated with medical facilities such as Massachusetts General Hospital and North Shore Medical Center.Cardiology
Advanced Heart Failure & Transplant Cardiology
Internal Medicine
*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 Athens / College Of Medicine / School Of Health Science National & Kapodistrian
Medical School
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Locations
Practice
Affiliated Hospitals
- Recipient of 31
hospital awardsAmerica’s 100 Best Hospitals for Cardiac Care Award™ (2025)
Top 5% in the nation for consistently delivering clinical quality
View all awardsAmerica's 250 Best Hospitals Award™ (2025, 2024)
Top 5% in the nation for consistently delivering clinical quality
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 15
hospital awardsAmerica's 250 Best Hospitals Award™ (2025, 2024)
Top 5% in the nation for consistently delivering clinical quality
View all awardsPatient Safety Excellence Award™ (2024)
Top 5% in the nation for consistently delivering clinical quality
View all patient feedbackHow patients felt about the care they received at this hospital.
89%Patients said they were given information about recovering at home5% higher than the national average
83%Patients said that doctors always listened to them and explained things well7% higher than the national average
- Recipient of 39
hospital awardsAmerica's 100 Best Hospitals Award™ (2025)
Top 5% in the nation for consistently delivering clinical quality
View all awardsAmerica's 250 Best Hospitals Award™ (2025, 2024, 2023)
Top 5% in the nation for consistently delivering clinical quality
View all patient feedbackHow patients felt about the care they received at this hospital.
87%Patients said they were given information about recovering at home3% higher than the national average
81%Patients said that nurses always listened to them and explained things well6% higher than the national average
Compare with other Cardiologists
Compare Dr. Mastoris with our nearby Cardiologists at Lawrence Memorial Hospital of Medford.
Make an appointment at Lawrence Memorial Hospital of Medford today at
(781) 334-8748.