Diagnose, Prevent, and Reverse Coronary Heart Disease

We provide the full spectrum of cardiovascular services and perform the largest number of life-saving diagnostic cardiac PET Scans worldwide.

Gramercy Cardiac Diagnostic Services,
under the medical direction of renowned cardiologist

Gramercy Cardiac, led by cardiologist Dr. K. Peter Rentrop, is the leading destination for men and women concerned about their risk for heart attack, stroke, and sudden death.

Dr. K. Peter Rentrop has global recognition due to groundbreaking contributions to the understanding and treatment of coronary artery disease. His work changed the treatment of acute myocardial infarction (AMI) and added to the understanding of collateral flow in the heart (see: “Rentrop Coronary Collateral Classification“). He holds patents for his contributions in the development of a laser catheter, widely used in the treatment of blockages in the coronary arteries as well as the arteries of the leg. He has contributed to the development of Nuclear Cardiology from its inception and is a Founding Member of American Society of Nuclear Cardiology.

What We Offer

We offer Cardiac PET Scans with the most advanced technology which detects coronary heart disease before traditional testing. PET-guided prevention can significantly reduce the incidence of heart attack and sudden death.

Cardiac PET MPI Scans are seen as the “Gold Standard” for diagnosing coronary heart disease.

Learn more about the PET Scan imaging quality, radiation levels, and detection methods compared to the widely used SPECT Scan.

The New York Times

Science Times Report on Dr. Rentrop’s studies pioneering modern thrombolytic therapy

European Society of Cardiology

Dr. Rentrop’s pioneering contributions to treatment of myocardial infarction

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Patient Reviews
for Gramercy Cardiac Diagnostic Services, PC

Below are the 3 most recent reviews of Gramercy Cardiac Diagnostic Services around the web.
To see all reviews and filter by source please visit our patient testimonial page.


Review from

Source: Google | Feb 23, 2018

Very passionate young medical staff with high professionalism, caring medical staff especially the two medical techs.

Review from

Source: Google | Jan 23, 2018

Came here few months ago for a cardiac stress test it was explained in a manner that calmed me and help me make a easy design to follow through with the nuclear stress test. Phlebotomist were respectful and caring which...

Review from

Source: Google | Dec 23, 2017

Too early for my test, but was quick. I like the fact they had all of my paperwork on file, no hassle. I was in and out.

Explore Our Cardiac Diagnostic Services.
Immediate appointments. Same day results.