Themistoklis J. Nissirios, MD

Nissirios, Themistoklis MD
Valley Medical Group
Member, ColigoCare
ColigoCare is a network of physicians working collectively to provide the highest quality care to patients and the community.


VMG - Cardiology, Ridgewood

1200 E. Ridgewood Ave
Suite 304 East
Ridgewood, NJ 07450
Phone: 201-689-9400
Fax: 201-689-9404



MD, Robert Wood Johnson Medical School, Medical Doctor, 1999 - 2003

BA, Rutgers University, Newark Campus, Biology, 1994 - 1998


Cooper University Hospital, Cardiology, 2006 - 2009

Internship & Residency

Montefiore Medical Center, Internal Medicine, 2003 - 2004

Montefiore Medical Center, Internal Medicine, 2004 - 2006

Board Certifications

American Board Of Internal Medicine - Certified, 2006

American Board Of Internal Medicine - Certified, 2009

National Board Of Echocardiography - Certified, 2010

Nuclear Cardiology Board Certification - Certified, 2009

Registered Physician Vascular Interpretation (rpvi) - Certified, 2009

Get to Know Me

What are some of the specific conditions you treat?

I treat all cardiac conditions for adult patients. Most specifically coronary artery disease, congestive heart failure, and cardiac arrhythmia, as well as hypertension, and hyperlipidemia.

What would you like patients to know about your approach to care?

I believe the most important function of a medical professional is to listen to their patient. First and foremost, patients need to understand how the heart works. I try to break down unfamiliar concepts, to concepts that every patient can understand. All my patients play an active role in the decision making process.

What inspired you to become a doctor?

I grew up on a small island in Greece, called Karpathos, where access to medical care was, and still to this day, is quite limited. What left an impression on me the most, was seeing people losing their life due to heart attacks and other forms of cardiac disease, and doctors not being able to do anything about it. I made it a mission to learn everything I could about the disease process and most importantly, prevention.


Valley Medical Group providers accept the following plans.