John A. Johnkoski

John Johnkoski practices at Aspirus Wausau Hospital in Wausau, Wisconsin, part of Aspirus.

John Johnkoski's NPI, 1992737035, was assigned on July 7, 2006. John Johnkoski graduated from University Of Michigan Medical School in 1988. John Johnkoski's Wisconsin license number on file is 39318.

John Johnkoski's primary practice is Aspirus Wausau Hospital, at 333 Pine Ridge Blvd, Wausau, WI 54401 in Marathon County. The practice phone is (715) 847-2000.

John Johnkoski's primary practice is Aspirus Wausau Hospital in Wausau, Wisconsin, part of Aspirus. John Johnkoski is also affiliated with Aspirus Stevens Point Hospital. The medical group on file is Aspirus Medical Group. Dmand AI also links John Johnkoski to 3 more hospitals, 2 group practices and clinics and 1 medical group, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where John Johnkoski practices, 7 sites in all. Vendor and product names are available with a free account.

Thoracic surgery (cardiothoracic vascular surgery) is John Johnkoski's primary specialty in the NPI Registry, under taxonomy code 208G00000X. John Johnkoski is board certified in thoracic and cardiac surgery by the American Board of Thoracic Surgery. Dmand AI has John Johnkoski's licenses on file in 4 states: Wisconsin, Michigan, Illinois and New York.

Dmand AI lists heart bypass surgery, heart valve surgery and lung resection among the conditions John Johnkoski treats.

CMS data shows 283 Medicare services from John Johnkoski across 7 procedure codes in 2024, for 185 Medicare patients. Medicare paid $66,508 for them.

CMS counts 185 Medicare patients who saw John Johnkoski in 2024. The largest group is 65 to 74, with 92 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 10% are also on Medicaid. Their average risk score is 1.28, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts John Johnkoski's median patient age at 72, with 34% women.

In 2024, John Johnkoski wrote 499 Medicare Part D claims for 93 patients. 88% of them were for generic drugs. CMS names the drug for 396 of them, across 15 drugs with 11 or more claims each, at $23,913 in total drug cost.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 88 out of 100 for John Johnkoski for performance year 2024, reported as part of a group. John Johnkoski accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 33 procedures of coronary artery bypass graft (cabg) by John Johnkoski, more than 86% of the clinicians it reports for that procedure.

Dmand AI links 9 papers to John Johnkoski, published from 2019 to 2022. 2022 was the busiest year, with 2. The most frequent topics are Atrial Fibrillation, Cardiac Surgical Procedures and Bone Marrow Cells. John Johnkoski's most frequent co-authors are Marc W. Gerdisch, MD, Andrew R. Barksdale, MD and Glenn Reid Barnhart, MD.

Dmand AI links John Johnkoski to 2 clinical trials. Conditions studied include Atrial Fibrillation and Arrhythmias, Cardiac. AtriCure, Inc. sponsors the most, 2.

CMS Open Payments shows 41 general payments to John Johnkoski from 5 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 53% of the total. AtriCure, Inc. paid the most, $4,368.

John Johnkoski graduated from University Of Michigan Medical School in 1988.

John Johnkoski is in network with 18 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.