John H Calhoon
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Accepting new patients

Calhoon, MD

  • Cardiothoracic Surgery
Call: 210-450-0999

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About me

About Me

Dr. Calhoon is both a congenital and adult cardiac surgeon. Only a few surgeons in the country have these combined areas of interest and ability. He takes pride in clear and genuine communication concerning each patients care to the best of his ability.
He enjoys performing complex neonatal and congenital heart repairs in cases of all sizes and ages. The team he leads is known nationally and internationally for their results and care.
Specific areas he excels and is considered by many to master are:
Complex aortic root reconstruction and replacement
Complex (often reoperative) coronary artery bypass
Treating severe heart valve and heart infections with surgery.
Tracheal and bronchial injury or tumor surgery and management
Ross Procedure and complications of the same (reconstruction of failed prior Ross autograft operations)
Dr. Calhoon obtained his medical degree at Baylor College of Medicine in Houston, Texas in 1981. He is Board Certified in Thoracic Surgery and Congenital Cardiac Surgery. He joined the group in 1989 and is Professor and Founding Chair of the Department of Cardiothoracic Surgery. His interests and expertise include complex congenital heart surgery; heart and lung transplantation; complex adult cardiac surgery; the Ross procedure; less invasive cardiac surgery, and improving education and patient care. Nationally, he has served as President of the TSDA, President of the STSA, President of the TSF and is currently first Vice President of the STS. He was elected a Director of the ABTS and ultimately became its Chair. Locally, he has been Chairman of the Dominion Country Club, and President of the local AHA affiliate.
He is a founder and now Emeritus Board Member of HeartGift San Antonio, an organization that sponsors charitable lifesaving congenital heart repair on kids from around the globe. Aside from the humbling professional honors above, he is very proud to have been selected as an Outstanding Young Texas Ex from the University of Texas. His greatest success was in finding, successfully courting, and marrying his wife, Ms. Sarah Lucero, a former award-winning local television journalist and anchor who now focuses on her own fitness and wellness brand and provides personal communications expertise through her company Spotlight with Sarah. They are proud of their children Satchel, Stetson, Seve and James.






  • Award
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Medical School:
Baylor College of Medicine

University of Texas Health Science Center at San Antonio

Children's Hospital of Boston


Board Certification:
American Board of Thoracic Surgery

Treatment and care

Treatment and Care

Specific areas of interest and expertise include:

  • Adult Small Cell Lung Cancer
  • Aneurysm
  • Aneurysm And Dissection Of Heart
  • Angina And Acute Coronary Syndrome
  • Aortic Aneurysm
  • Aortic Dissection
  • Aortic Ectasia
  • Aortic Stenosis
  • Aortic Valve Disease
  • Aortic Valve Regurgitation
  • Arrhythmias
  • Atrial Fibrillation
  • Atrial Flutter
  • Benign Tumor
  • Benign"
  • Bronchioalveolar Carcinoma
  • Bronchogenic Carcinoma
  • Cancer
  • Cardiomegaly
  • Cardiomyopathy
  • Carotid Artery Disease
  • Cerebral Artery Thrombosis
  • Clear Cell Adenocarcinoma
  • Congenital Aortic Valve Disorders
  • Congenital Heart Defects
  • Congenital Heart Disease
  • Congestive Heart Failure
  • Coronary Artery Calcification
  • Coronary Artery Disease (Cad)
  • Dissecting Aneurysm
  • Empyema
  • Endocarditis
  • Endovascular Aortic Aneurysm
  • Esophageal Cancer
  • Esophageal Diseases
  • Head And Neck Cancer
  • Heart Attack (Acute Myocardial Infarction)
  • Heart disease
  • Heart Tumors
  • Lung Cancer
  • Lung Neoplasms, Not Specified As Malignant
  • Malignant Pleural Effusion
  • Malignant"
  • Mediastinal Tumors
  • Mitral Valve Disease
  • Mitral Valve Regurgitation
  • Mitral Valve Stenosis
  • Non-Small Cell Lung Cancer
  • Not Specified As Malignant"
  • Pericardial Disease
  • Peripheral Arterial Aneurysm And Dissection
  • Pleura Cancer
  • Pleural Cancer
  • Pleural Effusion
  • Pulmonary Disease
  • Pulmonary Embolism
  • Pulmonary Valve Disease
  • Respiratory System Cancer
  • Ruptured Aortic Aneurysm
  • Septal Defect
  • Small Cell Lung Cancer
  • Thrombosis
  • Thymomas
  • Vascular Disease