Dr. John Hennecken, MD
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Dr. John Hennecken, MD
Clinical Cardiology
Dr. John Hennecken, MD is a clinical cardiology specialist in Brooklyn, NY. He is affiliated with medical facilities Mount Sinai Hospital and Putnam General Hospital. He is accepting new patients and telehealth appointments.
Locations
Mount Sinai Brooklyn Heights
Hospital Highlight
Dr. Hennecken is affiliated with Mount Sinai Hospital New York, a highly rated and top awarded hospital for cardiology.
At a Glance
- Areas of Expertise • Dr. Hennecken specializes in the areas of Cardiovascular Disease & Internal Medicine. See board certifications
- Offers Telehealth • This doctor offers telehealth appointments. Call the office to schedule an appointment.
- Practices at Top Hospital • America’s 50 Best Hospitals for Cardiac Surgery Award™ See hospitals
- Hospital Satisfaction • Patients said they were highly satisfied at this doctor's hospital. See hospitals
Experience Check
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Dr. Hennecken's Reviews
Likelihood to recommend Dr. Hennecken
| 5 star | 74% | 74% |
| 4 star | 22% | 22% |
| 3 star | 5% | 5% |
| 2 star | 0% | 0% |
| 1 star | 0% | 0% |
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Claim your profileOverall Patient Satisfaction
Likelihood of recommending Dr. Hennecken to family and friends is 4.6896553 out of 5
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About Me
biography
Dr. John Henneckenwas born in Manhattan and earned his undergraduate degree from Saint Johns University. Upon graduation, he was commissioned an officer in the United States Army. He received his medical degree with honors from S.U.N.Y....read moreClinical Cardiology
Nuclear Cardiology
Invasive 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.
Yale University/yale New Haven Hospital
Fellowship HospitalBronx Municipal Hospital Albert Einstein College Of Medicine
Internship HospitalSuny Downstate Medical Center
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 checkAlpha Omega Alpha Honor Medical Society, 1980
Affiliated Hospitals
- Recipient of 27
hospital awardsAmerica’s 50 Best Hospitals for Cardiac Surgery Award™ (2025, 2024, 2023)
Superior clinical outcomes in coronary intervention procedures (angioplasty with stent)
View all awardsAmerica’s 100 Best Hospitals for Coronary Intervention Award™ (2025, 2024, 2023)
Superior clinical outcomes in coronary intervention procedures (angioplasty with stent)
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
76%Patients said that doctors always listened to them and explained things well - View all patient feedback
How patients felt about the care they received at this hospital.
87%Patients said that nurses always listened to them and explained things well5% higher than the national average
86%Patients who gave a rating of 9 or 1011% higher than the national average
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