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License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Patient Reviews

Patient comments (1)

The overall average patient rating of Dr. Daniel Marelli is Average. Dr. Marelli has been reviewed by 4 patients who have provided 1 comments. The rating is 3 out of 5 stars.

Patient Ratings
Ease of Appointment 5.0
Promptness 5.0
Courteous Staff 5.0
Accurate Diagnosis 3.0
Bedside Manner 3.0
Spends Time with Me 3.0
Follows Up After Visit 3.0

Specialties & Research

Dr. Daniel Marelli, MD is board certified in Thoracic Surgery (Cardiothoracic Vascular Surgery).

  • He has special expertise in 10 areas:
  • Cardiac Surgical Procedures
  • Cardiopulmonary Bypass (CPB)
  • Coronary Artery Disease (CAD)
  • Coronary Disease
  • Heart Failure
  • Heart Transplantation
  • Lung Transplantation
  • Myocardial Diseases
  • Myocarditis
  • Tracheostomy

Education & Awards

Dr. Marelli graduated from Universite De Montreal. He has 1 awards.

One of America's Leading Experts on:
Heart Transplantation


Dr. Marelli has 10 hospital affiliations:

  • Hospital of the University of PA 
  • Thomas Jefferson University Hospital 


  • Hebrew
  • Spanish
  • French
  • English

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Additional Information
Dr. Daniel Marelli MD is a male Cardiothoracic Surgeon, has 25 years of experience and practices in Thoracic Surgery and Cardiothoracic Vascular Surgery.
Where does Dr. Daniel Marelli practice?
Dr. Daniel Marelli has 3 office locations.
Dr. Daniel Marelli practices Thoracic Surgery and Cardiothoracic Vascular Surgery near Dover, DE.
Additional practice locations include: Camden Wyoming, DE.
See Dover Cardiothoracic Surgeons.