Dr. Grehan is on Doximity
As a Doximity member you'll join over two million verified healthcare professionals in a private, secure network.
- Gain access to free telehealth tools, such as our “call shielding” and one-way patient texting.
- Connect with colleagues in the same hospital or clinic.
- Read the latest clinical news, personalized to your specialty.
Office
1301 W 18th St
Sioux Falls, SD 57105Phone+1 605-312-2100Fax+1 651-241-5100
Education & Training
University of MichiganFellowship, Thoracic Surgery, 2004 - 2006
University of MinnesotaResidency, Surgery, 1995 - 2004- University of Minnesota Medical SchoolClass of 1995
Certifications & Licensure
SD State Medical License Active through 2027
MN State Medical License 1997 - 2025
OH State Medical License 2006 - 2009
MI State Medical License 2004 - 2006
American Board of Thoracic Surgery Thoracic and Cardiac Surgery
Awards, Honors, & Recognition
- Fellow (FACS) American College of Surgeons
Clinical Trials
- ABLATE Post Approval Study - Synergy Ablation Lesions for Non-Paroxysmal Atrial Fibrillation Start of enrollment: 2012 Sep 01
- An Evaluation of Rigid Sternal Fixation in Supporting Bone Healing and Improving Postoperative Recovery Start of enrollment: 2013 Jan 01
Publications & Presentations
PubMed
- 14 citationsProphylactic Left Atrial Appendage Exclusion in Cardiac Surgery Patients With Elevated CHADS-VASc Score: Results of the Randomized ATLAS Trial.Marc W Gerdisch, H Edward Garrett Jr, Mubashir A Mumtaz, John F Grehan, Mario Castillo-Sang
Innovations. 2022-11-13 - 14 citationsIntercostal Cryo Nerve Block in Minimally Invasive Cardiac Surgery: The Prospective Randomized FROST Trial.Wei C. Lau, Francis Shannon, Steven F. Bolling, Matthew A. Romano, Marc P. Sakwa
Pain and Therapy. 2021-09-20 - 4 citationsOrthopedic Principles to Facilitate Enhanced Recovery After Cardiac Surgery.Marc W. Gerdisch, Keith B. Allen, Yoshifumi Naka, Mark R. Bonnell, Kevin Landolfo
Critical Care Clinics. 2020-10-01
Grant Support
- Protection Of Xenogeneic Endothelium In A Porcine KidneyNational Institute Of Diabetes And Digestive And Kidney Diseases2000
- Protection Of Xenogeneic Endothelium In KidneyNational Institute Of Diabetes And Digestive And Kidney Diseases1999
Professional Memberships
- Member
Viewing the full profile is available to verified healthcare professionals only.
Find your profile and take control of your online presence:
