4.2
10 Ratings with 2 written Reviews
Summary
Dr. John Grehan is a thoracic surgeon who also practices general surgery, bringing over three decades of expertise to his patients. He earned his medical degree from the University of Minnesota Medical School and has been practicing for 31 years. Dr. Grehan speaks English.
Dr. Grehan is affiliated with Allina Health United Hospital Hastings Regina Campus and practices across multiple locations in Minnesota and South Dakota, including Duluth, Buffalo, Elk River, Minneapolis, Saint Paul, Fridley, and Sioux Falls. He specializes in treating coronary artery disease and heart conditions that reduce blood flow to the heart muscle. His surgical expertise includes coronary artery bypass procedures and minimally-invasive heart surgery techniques. Patients have given him an average rating of 4.2 out of 5.
Dr. Grehan is affiliated with Allina Health United Hospital Hastings Regina Campus and practices across multiple locations in Minnesota and South Dakota, including Duluth, Buffalo, Elk River, Minneapolis, Saint Paul, Fridley, and Sioux Falls. He specializes in treating coronary artery disease and heart conditions that reduce blood flow to the heart muscle. His surgical expertise includes coronary artery bypass procedures and minimally-invasive heart surgery techniques. Patients have given him an average rating of 4.2 out of 5.
AI-generated from data on this provider profile.
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. David Maziarz, MD | Dr. Donald Joseph Wingert, MD | Dr. Gabriel Peñaredondo, PAC |
| Thoracic Surgery | Thoracic Surgery | Surgery | Thoracic Surgery |
| Accepts New Patients | Accepts New Patients | ||
| 31 Years of Experience | 27 Years of Experience | 44 Years of Experience | |
| Virtual Visit Available | Virtual Visit Available | No Virtual Visit Option | Virtual Visit Available |
| Speaks English | Speaks English | Speaks English | |
| Sioux Falls , SD | Sioux Falls , SD | Sioux Falls , SD | Sioux Falls , SD |
| Med School: University Of Minnesota Medical School | Med School: Rutgers New Jersey Medical School | Med School: Sanford School Of Medicine Of The University Of South Dakota | |
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, South Dakota, 2027, Active
Medical Doctor, Minnesota, 2026, Active
EDUCATION & TRAINING
Medical School
University Of Minnesota Medical SchoolGraduated in 1995
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Frequently Asked Questions
- Is Dr. John Grehan accepting new patients?
- Dr. John Grehan has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
- 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.
- Where is Dr. John Grehan's office located?
- Dr. John Grehan's office is located at 1301 W 18th St, Sioux Falls, SD, 57105.
- 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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