


Dr. Peter Johnston, MD
Dr. Peter Johnston, MD is a cardiologist in Baltimore, MD. Dr. Johnston has extensive experience in Interventional Cardiac Procedures and Heart Conditions. He is affiliated with medical facilities such as The Johns Hopkins Hospital and Johns Hopkins Bayview Medical Center.
Practice
4940 Eastern Ave Baltimore, MD 21224Compare with other Cardiologists
Compare Dr. Johnston with our nearby Cardiologists at University of Maryland Medical System.
Make an appointment at University of Maryland Medical System today at
(410) 280-7292.
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Dr. Johnston's Reviews
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5.0
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How was your experience with Dr. Johnston?Overall Patient Satisfaction
Likelihood of recommending Dr. Johnston to family and friends is 5 out of 5
About Me
biography
Dr. Peter Johnston, MD is a cardiologist in Baltimore, MD. Dr. Johnston has extensive experience in Interventional Cardiac Procedures and Heart Conditions. He is affiliated with medical facilities such as The Johns Hopkins Hospital and Johns Hopkins Bayview Medical Center.Cardiology
Interventional Cardiology
*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 Maryland At Baltimore / Professional Schools
Medical School
Healthgrades receives board action history for physicians and physician assistants. The information displayed here is sourced from independent information providers, such as state board websites, and may not be the most up-to-date information. Healthgrades makes no representations with respect to the accuracy of any information provided here and assumes no responsibility or liability for such information.
Learn more about medical license public record checkTransmyocardial therapeutic-delivery using real-time MRI guidance, 2013-01-30
XFM-guided delivery of imaging-visible human mesenchymal stem cells into the pericardial space in a porcine model, 2012-02-01
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Locations
Practice
Practice
Affiliated Hospitals
- Recipient of 47
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 100 Best Hospitals for Coronary Intervention Award™ (2025)
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
82%Patients would recommend the hospital to friends and family17% higher than the national average
- Recipient of 6
hospital awardsView all awardsAmerica's 250 Best Hospitals Award™ (2025)
Top 5% in the nation for consistently delivering clinical quality
View all patient feedbackHow patients felt about the care they received at this hospital.
85%Patients said they were given information about recovering at home1% higher than the national average
75%Patients said that doctors always listened to them and explained things well1% lower than the national average
- Recipient of 25
hospital awardsAmerica's 100 Best Hospitals Award™ (2025, 2024, 2023)
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.
88%Patients said they were given information about recovering at home4% higher than the national average
78%Patients said that doctors always listened to them and explained things well2% higher than the national average
Compare with other Cardiologists
Compare Dr. Johnston with our nearby Cardiologists at University of Maryland Medical System.
Make an appointment at University of Maryland Medical System today at
(410) 280-7292.
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