4.2
10 Ratings with 2 written Reviews
Summary
Dr. John Grehan is a thoracic and cardiovascular surgeon who graduated from the University of Minnesota Medical School. With 31 years of experience in surgery, he specializes in complex heart and chest procedures that require advanced surgical expertise. Dr. Grehan is fluent in English and brings over three decades of surgical knowledge to his practice.
Dr. Grehan is affiliated with Allina Health United Hospital Hastings Regina Campus and practices at the Sanford Cardiac, Thoracic & Vascular Surgery Clinic in Sioux Falls, South Dakota. He treats patients with coronary artery disease and heart muscle problems caused by reduced blood flow. His surgical expertise includes cardiovascular and thoracic procedures that help restore heart function and improve patient outcomes. Patients have given him an average rating of 4.2 out of 5 stars.
Dr. Grehan is affiliated with Allina Health United Hospital Hastings Regina Campus and practices at the Sanford Cardiac, Thoracic & Vascular Surgery Clinic in Sioux Falls, South Dakota. He treats patients with coronary artery disease and heart muscle problems caused by reduced blood flow. His surgical expertise includes cardiovascular and thoracic procedures that help restore heart function and improve patient outcomes. Patients have given him an average rating of 4.2 out of 5 stars.
Overview based on verified provider data
Quick Facts
- 31 years of experience
- 13 insurance plans accepted
- speaks English
- University Of Minnesota Medical School
- 2 written reviews
- 3 specialties
- 7 areas of expertise
- 2 board certifications
- 1 hospital affiliation
- 1 office location
- Male
Office Location
Sanford Cardiac, Thoracic & Vascular Surgery Clinic
1301 W 18th StSioux Falls, SD 57105 Tel: (605) 312-2100
Mon8:30 am - 4:30 pm
Tue8:30 am - 4:30 pm
Wed8:30 am - 4:30 pm
Thu8:30 am - 4:30 pm
Fri8:30 am - 4:30 pm
SatClosed
SunClosed
Compare with Similar Doctors
 |  |  |  |
| Dr. John Grehan, MD | Dr. Donald Joseph Wingert, MD | Dr. Brian K Duxbury, DO | Dr. Paul E Meyer, MD |
| Thoracic Surgery | Surgery | Cardiovascular Surgery | Cardiovascular Surgery |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | |
| 31 Years of Experience | 44 Years of Experience | 8 Years of Experience | 31 Years of Experience |
| Virtual Visit Available | No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option |
| Speaks English | Speaks Spanish, English | ||
| Sioux Falls , SD | Sioux Falls , SD | Sioux Falls , SD | Sioux Falls , SD |
| Med School: University Of Minnesota Medical School | Med School: Sanford School Of Medicine Of The University Of South Dakota | Med School: Campbell University Jerry M Wallace School Of Osteopathic Medicine | Med School: University Of Minnesota Medical School |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. John Grehan
Medical Specialties
Dr. John Grehan has the following 3 specialties
Specialty Expertise
Dr. John Grehan has the following 7 areas of expertise
Certifications, License, & Education
31 Years Experience
MEDICAL LICENSE
Medical Doctor, Minnesota, 2026, Active
Medical Doctor, South Dakota, 2027, Active
EDUCATION & TRAINING
Medical School
University Of Minnesota Medical SchoolGraduated in 1995
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Frequently Asked Questions
- Does Dr. John Grehan accept virtual/telehealth appointments?
- Yes, Dr. John Grehan accepts virtual/telehealth appointments. Click the virtual visit button on their Vitals profile.
- Where is Dr. John Grehan's office located?
- Dr. John Grehan's office is located at 1301 W 18th St, Sioux Falls, SD, 57105.
- Does Dr. John Grehan accept my insurance?
- You can see the insurance plans that Dr. John Grehan accepts on their Vitals profile.
- Which hospitals is Dr. John Grehan affiliated with?
- Dr. John Grehan is affiliated with Allina Health United Hospital Hastings Regina Campus.
- How can I make an appointment with Dr. John Grehan?
- You can find contact information for Dr. John Grehan here on Vitals.
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