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Dr. Steven Leonard, MD

Dr. Steven Leonard, MD

Pediatric Cardiothoracic Surgery ·  Male · Age 64

Dr. Steven Leonard, MD is a pediatric cardiothoracic surgery specialist in Denver, CO and has been practicing for 31 years. He specializes in pediatric cardiothoracic surgery, pediatric cardiology, and more.

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(303) 578-4018

Dr. Leonard accepts the following insurance:

Aetna HMO
Choice Plus POS II
Anthem Blue Cross Blue Shield
Blue Cross Blue Shield
Cigna HMO
Cigna PPO
Great West Healthcare-Cigna PPO
Open Access
Commercial Insurance Company
First Health (Coventry Health Care)
First Health (Coventry Health Care) PPO
Choice Care PPO
MultiPlan PPO
PHCS Network PPO
Choice Plus POS
Options PPO

Background Check

No malpractice claims found for Colorado
No disciplinary actions found for the years we collect data
No board actions found for the years we collect data
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Experience Check

Check if Dr. Leonard treats your condition or procedure

Dr. Leonard's conditions and procedures:

  • Aneurysm
  • Aortic Aneurysm
  • Aortic Aneurysm Stent Grafting
  • Aortic Repair, Open or Repair of Arterial Aneurysm, Open
  • Aortic Stenosis
  • Aortic Valve Disease
  • Aortic Valve Regurgitation
  • Aortic Valve Repair
  • Aortic Valve Replacement
  • Aortic Valve Surgery
  • Arrhythmias
  • Arterial Calcification of Infancy
  • Arterial Insufficiency
  • Atrial Fibrillation Surgery
  • Cardiac Electrophysiology
  • Cardiac Shunting Procedures With or Without Aortic Repair or Coronary Anomaly Repair
  • Cardiomegaly
  • Cardiomyopathy
  • Cardiovascular Surgical Procedure
  • Cardioverter-Defibrillator or Pacemaker Insertion, Removal or Repair
  • Coarctation of the Aorta
  • Congenital Aortic Valve Disorders
  • Congenital Heart Defects
  • Congenital Heart Disease
  • Congenitally Corrected Transposition of the Great Arteries (CCTGA)
  • Congestive Heart Failure
  • Ebstein's Anomaly
  • Endocarditis
  • Head and Neck Surgery
  • Heart Block
  • Heart Blood Vessel Blockage
  • Heart Defect Repair
  • Heart Disease
  • Heart Surgery
  • Heart Valve Diseases
  • Heart Valve Replacement
  • Insertion of Epicardial Lead for Pacemaker or Cardioverter and-or Defibrillator
  • Lobectomy, Open
  • Lung Removal (Partial or Complete): Open, or Resection of Lung Tumor: Open
  • Lung Surgery
  • Marfan Syndrome
  • Mediastinal Tumors, Not Specified as Malignant
  • Mitral Valve Disease
  • Mitral Valve Regurgitation
  • Mitral Valve Stenosis
  • Pacemaker Insertion or Replacement
  • Patent Ductus Arteriosus
  • Port Placements or Replacements
  • Pulmonary Disease
  • Pulmonary Valve Disease
  • Pulmonary Valve Stenosis
  • Removal or Revision of Pacemaker or Cardioverter and-or Defibrillator
  • Septal Defect
  • Syncope
  • Tetralogy of Fallot
  • Tracheal Surgery
  • Tricuspid Valve Disease
  • Valve Repair or Replacement (Aortic, Mitral, Tricuspid, and Pulmonary)
  • Vascular Disease
  • Vascular Surgical Procedure

About Me

We understand that when a child is ill, the entire family is affected. So we believe our responsibility is not only to the child, but also to mom and dad, siblings, grandparents and anyone closely involved in our patient's care. As a team, we've dedi...


  • Pediatric Cardiothoracic Surgery
  • Cardiac Surgery
  • General Surgery
  • Pediatric Cardiology

Board Certifications

  • Cardiovascular Surgery
  • Congenital Cardiac Surgery
  • General Surgery
  • Thoracic Cardiovascular Surgery


University of Texas Medical School (Southwestern)
Residency Hospital
The Children's Hospital
Fellowship Hospital
Medical University of South Carolina
Residency Hospital
University of Colorado At Denver
Medical School


  • Spanish
  • English


  • Healthgrades Honor Roll
  • 5280 Top Doctor, 01/01/2012

Dr. Leonard's Reviews

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Average Wait Time
  • 10 – 15 minutes
Dr. Leonard's Performance
  • Trustworthiness
  • Explains condition(s) well
  • Answers questions
  • Time well spent
Office & Staff Performance
  • Scheduling
  • Office environment
  • Staff friendliness
What People Say About Dr. Steven Leonard, MD
RecentMost Helpful
I would recommend Dr. Leonard without hesitation! We love him! Because of him we have our baby girl that would not have made it otherwise!
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Dr. Leonard is a wonderfully skilled, trained and patient surgeon. Our son had a tough conduit replacement and Dr. Leonard took the time to carefully access the situation and performed a fantastic repair that took 4 hours longer than anticipated. He is tireless. Pre, post surgery he was there to...Read More
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Dr. Leonard is very kind and concerned with not only our child but how we are doing. You could not ask for a nicer surgeon. We recommend him 100%.
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We have a very medically complex child and Dr. Leonard did a superb job involving 30 hours of open heart surgery to fix our sons condition; He always remained calm and professional and truly cares for the patient and family. He saved our sons life and is the best cardiac surgeon our son has had...Read More
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Dr. Leonard performed open heart surgery on my daughter Lacey 11 years ago at Dallas Children's Medical Center. Lacey has Down Syndrome and had Tetrology of Fallot. Dr. Leonard was the only dr who gave our baby girl a chance to survive. He promised me that no matter what he would make sure I was...Read More
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