
Join to view full profile
425 Pine Ridge BlvdSte 209Wausau, WI 54401
Phone+1 715-847-0400
Fax+1 715-847-0401
Dr. Johnkoski is on Doximity
As a Doximity member, you’ll join more than three million U.S. healthcare professionals—including 85+% of physicians, and 2/3 of all NPs and PAs—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.
Education & Training
University of Michigan Medical SchoolClass of 1988
Certifications & Licensure
WI State Medical License 1997 - 2027
MI State Medical License 2012 - 2013
IL State Medical License 1999 - 2002
NY State Medical License 1990 - 1997
American Board of Thoracic Surgery Thoracic and Cardiac Surgery
Awards, Honors, & Recognition
- CMS Meaningful Use Stage 2 Certification EpicCare Inpatient 2014 Certified EHR Suite, Epic Systems Corporation, 2014, 2016-2017
- CMS Meaningful Use Stage 2 Certification EpicCare Ambulatory 2014 Certified EHR Suite, Epic Systems Corporation, 2014, 2016-2017
- CMS Meaningful Use Stage 1 Certification EpicCare Ambulatory 2014 Certified EHR Suite, Epic Systems Corporation, 2014, 2016-2017
Clinical Trials
Publications & Presentations
PubMed
- 1 citationsDual Epicardial and Endocardial Procedure (DEEP) for Persistent or Longstanding Persistent Atrial Fibrillation.Kenneth A Ellenbogen, Ali Khoynezhad, Mark La Meir, Carlo de Asmundis, Jayanthi N Koneru
Circulation. Arrhythmia and Electrophysiology. 2025-10-01 - 32 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 - 8 citationsMid-term outcomes of concomitant Cox-Maze IV: Results from a multicenter prospective registry.Marc Gerdisch, Eric Lehr, Gansevoort Dunnington, John Johnkoski, Andrew Barksdale
Journal of Cardiac Surgery. 2022-10-01
Viewing the full profile is available to verified healthcare professionals only.
Find your profile and take control of your online presence: