Overview
John Grehan is a Thoracic Surgeon in Sioux Falls, South Dakota. Dr. Grehan is highly rated in 7 conditions, according to our data. His top areas of expertise are Aortic Valve Stenosis, Bicuspid Aortic Valve, Mitral Valve Regurgitation, Coronary Artery Bypass Graft (CABG), and Heart Bypass Surgery. Dr. Grehan is currently accepting new patients.
His clinical research consists of co-authoring 6 peer reviewed articles and participating in 2 clinical trials. MediFind looks at clinical research from the past 15 years.
Insurance
Please contact the provider to confirm they accept your insurance or if you don't see your insurance listed.
Accepted insurance plans
- Sanford Health
- Wellmark
- Medica
- Humana
Locations
1301 W 18th St, Sioux Falls, SD 57105
Clinical Research
Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.
2 Clinical Trials
Heart Hospital Of South Dakota LLC
Tommy Reynolds is a Thoracic Surgeon and a Cardiologist in Sioux Falls, South Dakota. Dr. Reynolds is highly rated in 20 conditions, according to our data. His top areas of expertise are Carotid Artery Disease, Arterial Embolism, Arterial Insufficiency, Carotid Artery Surgery, and Heart Bypass Surgery. Dr. Reynolds is currently accepting new patients.
Heart Hospital Of South Dakota LLC
Paul Meyer is a Thoracic Surgeon and a Vascular Surgeon in Sioux Falls, South Dakota. Dr. Meyer is highly rated in 10 conditions, according to our data. His top areas of expertise are Pleurisy, Pleural Effusion, Pleuropulmonary Blastoma, Heart Bypass Surgery, and Heart Valve Repair. Dr. Meyer is currently accepting new patients.
Steven Feldhaus is a Thoracic Surgeon and a Vascular Surgeon in Sioux Falls, South Dakota. Dr. Feldhaus is highly rated in 9 conditions, according to our data. His top areas of expertise are Mitral Valve Regurgitation, Thoracic Aortic Aneurysm, Aortic Valve Stenosis, Heart Bypass Surgery, and Heart Valve Repair. Dr. Feldhaus is currently accepting new patients.
Areas of Expertise
When evaluating expertise, MediFind pulls from factors such as the number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.
To learn more about how MediFind determines the expertise levels, check out our expert tiers page.
- Advanced
- Aortic Valve Replacement
- Aortic Valve Stenosis
- Bicuspid Aortic Valve
- Coronary Artery Bypass Graft (CABG)
- Heart Bypass Surgery
- Heart Valve Repair
- Experienced
- Aortic Dissection
- Aortic Regurgitation
- Arterial Embolism
- Cystic Medial Necrosis of Aorta
- Gastrostomy
- Infective Endocarditis