Dr. John Grehan, MD

Dr. John Grehan, MD

Cardiothoracic Surgery  ·  
Male  ·  
Age 51
(71)
Save
Dr. John Grehan, MD is a cardiothoracic surgery specialist in Saint Paul, MN and has been practicing for 13 years. He graduated from University Of Minnesota Medical School in 1995 and specializes in cardiothoracic surgery.

225 Smith Ave N # St

Saint Paul, MN 55102

Contact Information

Insurance Accepted

  • Accepts most major Health Plans. Please contact our office for details.

*Please verify this information when scheduling an appointment.

Background Check

Healthgrades does not collect malpractice claims information for Minnesota
No disciplinary actions found for the years we collect data
No board actions found for the years we collect data
Learn more about background checks

Experience Check

Check Dr. Grehan's experience treating your condition or procedure

Dr. Grehan's Top Procedures and Conditions

Treatment Frequency
Valve Repair or Replacement (Aortic, Mitral, Tricuspid, and Pulmonary)
high
high

Treatment Frequency

Dr. Grehan performs Valve Repair or Replacement (Aortic, Mitral, Tricuspid, and Pulmonary) more than 86% of his peers

Dr. Grehan performs this procedure more than 86% of his peers

Rating Includes other areas of care:

  • Aortic Valve Repair
  • Aortic Valve Replacement
  • Aortic Valvuloplasty
  • Heart Valve Replacement
  • Mitral Valve Repair
  • Mitral Valve Replacement
  • Percutaneous Balloon Valvuloplasty
  • Transcatheter Mitral Valve Repair
  • Transcatheter Mitral Valve Replacement
  • Tricuspid Valve Repair / Replacement
  • Valvuloplasty
Aortic Valve Surgery
high
high

Treatment Frequency

Dr. Grehan performs Aortic Valve Surgery more than 85% of his peers

Dr. Grehan performs this procedure more than 85% of his peers

Heart Disease
normal
normal

Treatment Frequency

Dr. Grehan treats Heart Disease more than 79% of his peers

Dr. Grehan treats this condition more than 79% of his peers

Dr. Grehan's conditions and procedures:

  • Ablation for Treatment of Cardiac Arrhythmias
  • Abscess or Cyst Drainage or Aspiration
  • Aneurysm
  • Aneurysm and Dissection of Heart
  • Angina and Acute Coronary Syndrome
  • Aortic Aneurysm
  • Aortic Dissection
  • Aortic Reconstruction Surgery
  • Aortic Repair, Open or Repair of Arterial Aneurysm, Open
  • Aortic Stenosis
  • Aortic Valve Disease
  • Aortic Valve Regurgitation
  • Aortic Valve Replacement
  • Aortic Valve Surgery
  • Arrhythmias
  • Atrial Fibrillation
  • Atrial Fibrillation Surgery
  • Benign Tumor
  • Cardiomyopathy
  • Congenital Aortic Valve Disorders
  • Congenital Heart Defects
  • Congestive Heart Failure
  • Coronary Artery Disease (CAD)
  • Coronary Artery Dissection
  • Decortication and Pleurectomy
  • Ebstein's Anomaly
  • Empyema
  • Endocarditis
  • Endovascular Repair of Thoracic Aorta
  • Heart Defect Repair
  • Heart Disease
  • Heart Surgery
  • Heart Tumors, Benign
  • Heart Valve Diseases
  • Hyperhidrosis and Minimally Invasive Sympathectomy
  • Insertion of Epicardial Lead for Pacemaker or Cardioverter and-or Defibrillator
  • Insertion of Left Ventricular Lead for Pacemaker or Cardioverter and-or Defibrillator
  • Laparoscopic Surgical Procedure
  • Lobectomy, Open
  • Lung Cancer
  • Lung Removal (Partial or Complete): Open, or Resection of Lung Tumor: Open
  • Lung Surgery
  • Lymph Node Biopsy or Excision
  • Maze Procedure
  • Minimally Invasive Heart Surgery
  • Mitral Valve Disease
  • Mitral Valve Regurgitation
  • Mitral Valve Repair
  • Mitral Valve Stenosis
  • Mitral Valve Surgery
  • Non-Coronary Angioplasty, Atherectomy, and Stenting
  • Open Thymectomy
  • Pericardial Disease
  • Peripheral Arterial Dissection
  • Pleura Cancer
  • Pleural Cancer
  • Port Placements or Replacements
  • Pulmonary Disease
  • Pulmonary Embolism
  • Pulmonary Valve Disease
  • Pulmonary Valve Surgery
  • Resection of Cardiac Tumor
  • Rheumatic Aortic Valve Disorders
  • Ruptured Aortic Aneurysm
  • Segmentectomy, Open
  • Septal Defect
  • Sympathectomy
  • Thoracentesis
  • Thoracoabdominal Aortic Aneurysm
  • Thoracoscopic Wedge Resection
  • Thromboendarterectomy or Excision of Infected Graft
  • Thymomas
  • Transcatheter Aortic Valve Replacement (TAVR)
  • Transcatheter Mitral Valve Repair
  • Tricuspid Valve Surgery
  • Valve Repair or Replacement (Aortic, Mitral, Tricuspid, and Pulmonary)
  • Vascular Disease
  • Ventricular Assist Device
  • Video-Assisted Thoracoscopic Surgery (VATS) or Thoracotomy

About Me

Biography

Dr. John Grehan, MD is a cardiothoracic surgery specialist in Saint Paul, MN and has been practicing for 13 years. He graduated from University Of Minnesota Medical School in 1995 and specializes in cardiothoracic surgery.

Specialties

  • Cardiothoracic Surgery

Board Certifications

  • Cardiovascular Surgery
  • General Surgery
  • Thoracic Cardiovascular Surgery
  • Thoracic Surgery

Education

2006
University Michigan Health System
Fellowship Hospital
2004
Fairview University Med Center
Residency Hospital
1996
Fairview University Med Center
Internship Hospital
1995
University Of Minnesota Medical School
Medical School
1991
University Of Minnesota / Twin Cities Campus
Undergraduate School
2006
2004
1996
1995
1991

Awards

  • Healthgrades Honor Roll
  • Hospital Outstanding Patient Experience (H.O.P.E.) Award-AllinaHealth, April 2012
  • Hospital Outstanding Patient Experience (H.O.P.E.) Award-AllinaHealth, June 2011
  • Americas Top Surgeons-Consumers' Research Council of America, 2012

Dr. Grehan's Reviews

Likelihood to recommend Dr. Grehan

4.8

Based on 71 reviews

5 Stars
94.36619718309859%
(67)
4 Stars
1.408450704225352%
(1)
3 Stars
0%
(0)
2 Stars
1.408450704225352%
(1)
1 Star
2.816901408450704%
(2)

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Average Wait Time
  • Under 10 minutes
Dr. Grehan'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. John Grehan, MD
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Very good at what he does. Not as personable as some but someone I would. Trust in a critical situation. 100 percent trust in his competence. I liked the straight forward . Better with patients than family.
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I'm not sure why everyone was like go to Mayo or the Cleveland Clinic because I'm so glad I stayed in town and went to Dr. Grehan. He was outstanding. In fact, I can't say enough great things about Dr. Grehan and his staff. Everybody was really excellent. And that was another big part...the...Read More
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Very helpful in explaining options and reasons for his recommendations.
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When my cardiologist informed me I would need mitral valve repair, he quickly recommended Dr. Grehan. My experience with Dr. Grehan and his staff has been very positive. Most importantly my valve was repaired, and while I continue to heal, it appears I am well on my way to full recovery and good...Read More
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I had a great experience with the whole team. I did some research regarding Dr. Grenada and found he had excellent credentials.
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Locations

Insurance accepted

Accepted insurance can change. Please double-check when making an appointment.

Accepts most major Health Plans. Please contact our office for details.

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