Dr. Ashish Sadhu has been practicing clinical cardiac electrophysiology in Arizona since 2008 and is board certified in Cardiovascular Disease and Clinical Cardiac Electrophysiology. He earned his medical degree from Dr. P.D.M. Medical College in Amravati, India. He completed his Internal Medicine internship and residency from the University of Arizona in Tucson. After completing his Cardiology fellowship from Texas Tech University in Lubbock, Texas he moved to Massachusetts for further sub-specialty training in Clinical Cardiac Electrophysiology at University of Massachusetts in Worcester. 

Specialty Training

Dr. Sadhu has specialized training in performing complex arrhythmia treatments including catheter ablations for atrial fibrillation and left atrial appendage occlusion with the Watchman LAAC as well as expertise in pacemakers, defibrillators and heart failure devices. 

Contact Us

Office Locations (Hours vary - please call ahead)

**Scottsdale (Main Office)**
10101 N 92nd Street

Suite 101

Scottsdale, AZ 85258


36800 North Sidewinder Road, Suite A-4
Carefree, AZ 85377

Fountain Hills

13253 N. La Montana Dr. Suite 101
Fountain Hills, AZ 85268


490 Bralliar Road
Wickenburg, AZ 85390

Ashish Sadhu, MD, FHRS, FACC

Cardiovascular Institute Of Scottsdale, 10101 N 92nd St, Scottsdale, Arizona 85258, United States


Ashish Sadhu, MD, FHRS, FACC

Open today

07:00 am – 05:00 pm

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Frequently asked questions

What is Electrophysiology?


Cardiac electrophysiology is a sub-specialty of cardiology which deals with the study of the heart’s electrical system. The term “electrophysiology study” or “EP study” applies to any procedure that requires the insertion of small removable catheters into the heart to make electrical measurements. 

Electrophysiology studies may be done to diagnose electrical abnormalities to access the heart for treatment or correction of certain conditions, such as Pacemaker Implantation, ICD Insertion, or Cardiac Ablation.

What is an Arrhythmia?


An irregularity in the heart’s electrical system is called an arrhythmia, or heart rhythm disorder. Rhythm disorders can cause the heart to beat too slowly (Bradycardia) or too fast (Tachyarrhythmia).

For the most common arrhythmias, the procedural success rate by experienced operators is in the range of 90-99%. The risks of the procedure are generally small and often only related to intravenous puncture. Serious cardiac complications are uncommon, but can occur.

Services Provided


  • Arrhythmia Consultation
  • Electrocardiogram (ECG)
  • Exercise ECG or Stress Test
  • Holter or Event Monitor 
  • Implantable Loop Recorder
  • Radiofrequency ablation of SVT, Atrial fibrillation and VT
  • Transseptal catheterization
  • Left atrial appendage closure (Watchman)
  • Implantation, evaluation and follow-up of pacemakers
  • Implantation, evaluation and follow-up of implantable cardioverter defibrillators and cardiac resynchronization devices
  • Tilt Table Studies