Dr. John Grehan, MD

Dr. John Grehan, MD

Cardiac Surgery  ·  
Male  ·  
Age 50
(63)
Save
Dr. John Grehan, MD is a cardiac surgery specialist in Saint Paul, MN and has been practicing for 12 years. He graduated from University Of Minnesota Medical School in 1995 and specializes in cardiac surgery and thoracic surgery.

225 Smith Ave N # St

Saint Paul, MN 55102

Contact Information

(651) 241-7176

Insurance Accepted

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

*Please verify this information when scheduling an appointment.

Learn about Dr. Grehan

Be confident in your decisions by checking out your provider's top areas of care, education, patient reviews and more. Learn about finding the right doctor for you.

Top Care Areas

See how frequently Dr. Grehan performs your care needs compared to other doctors.

Valve Repair or Replacement (Aortic, Mitral, Tricuspid, and Pulmonary)
high
more than 82% of peers
Aortic Valve Surgery
normal
more than 77% of peers
Coronary Artery Disease (CAD)
normal
more than 74% of peers

Dr. Grehan's percentages are based on the rate of treatment compared to peers nationwide from insurance data. Learn more info about our data and this Top Care Areas component.

2  Specialties

  • Cardiac Surgery
  • Thoracic Surgery

4  Board Certifications

  • Cardiovascular Surgery
    Accredited by: American Board of Medical Specialties*
  • General Surgery
    Accredited by: Royal College of Physicians and Surgeons of Canada
  • Thoracic Cardiovascular Surgery
    Accredited by: American Board of Thoracic Surgery*
  • Thoracic Surgery
    Accredited by: American Board of Thoracic Surgery*

38  Conditions Treated

  • Aneurysm
  • Aneurysm and Dissection of Heart
  • Angina and Acute Coronary Syndrome
  • Aortic Aneurysm
  • Aortic Dissection
  • Aortic Stenosis
  • Aortic Valve Disease
  • Aortic Valve Regurgitation
  • Arrhythmias
  • Atrial Fibrillation
  • Benign Tumor
  • Cardiomyopathy
  • Congenital Aortic Valve Disorders
  • Congenital Heart Defects
  • Congestive Heart Failure
  • Coronary Artery Disease (CAD)
  • Coronary Artery Dissection
  • Empyema
  • Endocarditis
  • Heart Disease
  • Heart Tumors, Benign
  • Heart Valve Diseases
  • Lung Cancer
  • Mitral Valve Disease
  • Mitral Valve Regurgitation
  • Mitral Valve Stenosis
  • Pericardial Disease
  • Pleura Cancer
  • Pleural Cancer
  • Pulmonary Disease
  • Pulmonary Embolism
  • Pulmonary Valve Disease
  • Rheumatic Aortic Valve Disorders
  • Ruptured Aortic Aneurysm
  • Septal Defect
  • Thoracoabdominal Aortic Aneurysm
  • Thymomas
  • Vascular Disease
Less
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39  Procedures

Less
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Background Check

Malpractice Claims not available

Healthgrades does not collect malpractice information for Minnesota.

0 Sanctions

No sanctions history found for the years that Healthgrades collects data.

0 Board Actions

No board actions found for the years that Healthgrades collects data.

Education

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

Awards & Recognition

Awards & Honors
  • 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
Media & Publications

Dr. Grehan has no media or publications listed.

Languages Spoken

  • English

Memberships & Professional Affiliations

Dr. Grehan does not have any memberships or affiliations listed. If you are Dr. Grehan and would like to add memberships or affiliations, please update your profile.

Dr. Grehan's Reviews

4.8
Likelihood of recommending Dr. Grehan to family and friends
63 total reviews (22 have comments)

Likelihood to Recommend (63)

  • 5
    (59)
  • 4
    (1)
  • 3
    (0)
  • 2
    (1)
  • 1
    (2)

Dr. Grehan's Performance

  • Trustworthiness

    EXCELLENT
  • Explains condition(s) well

    EXCELLENT
  • Answers questions

    EXCELLENT
  • Time well spent

    EXCELLENT

Office & Staff Performance

  • Scheduling

    EXCELLENT
  • Office environment

    EXCELLENT
  • Staff friendliness

    EXCELLENT
  • Average wait time

    Under 10 minutes

Patient Comments (22)

When I was aware that I needed to plan my aortic valve replacement surgery my cardiologists doctor Rusterholz never hesitated one minute recommending dr. John Grehan. All the Care by dr. Grehan and his staff was excellent. I would recommend doctor Grehanto any one of my friends or family if they...more
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I would recommend Dr Grehan to any and all family members and friends. He was very professional and exuded confidence. He explained the procedures he planned to perform and what to expect. As a result of his knowledge and skill I am now on the road to a full recovery and feeling better each day. ...more
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Dr. Grehan is an excellent surgeon and I highly recommend him for any one needing a doctor to perform any form of heart surgery. He takes the time to explain the surgery and his staff will fallow up with all family members as the surgery is being performed.
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I'm six weeks out from a mitral valve repair and would definitely choose Dr. Grehan again for care. He has a calm and confident manner without being cocky or smug. At 50, he should be in the prime of his career and from my result is. His preop consult answered my questions and concerns in a...more
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I would definitely recommend Dr. Grehan. Dr. Grehan and staff are very professional and courteous. They answered all my questions throughly and put me at ease. They are very trustworthy.
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