John Kowal has been appointed president and head of the Americas for Siemens Healthineers, effective April 14, 2025, according to a company news release.


RT’s Three Key Takeaways

  1. Leadership Appointment: Siemens Healthineers has appointed John Kowal, current president of the Americas for Varian, as its new president and head of the Americas, effective April 14, 2025.
  2. Extensive Experience: John Kowal brings nearly two decades of leadership experience from Varian, where he advanced through several senior roles and is highly regarded for cultivating deep customer relationships and driving strong commercial performance.
  3. Strategic Transition: Kowal will succeed David Pacitti, who after a decade of impactful leadership at Siemens Healthineers is departing to become the CEO of Avanos, signaling a smooth transition of leadership within the company.


John Kowal, president of the Americas for Varian, has been appointed president and head of the Americas for Siemens Healthineers, effective April 14, 2025, according to a company press release.

Kowal succeeds David Pacitti, who has accepted the role of CEO of Avanos, effective April 14, 2025. 

“We are very thankful for Dave’s commitment over the last decade to position Siemens Healthineers as a leading medtech company in the United States,” said Darleen Caron, CHRO and member of the Managing Board at Siemens Healthineers with responsibility for The Americas. “We are particularly grateful for his leadership in building strategic Value Partnerships with world-renowned medical institutions in the U.S.”

Caron added: “We are very pleased to appoint John Kowal as our new president and head of the Americas. His track record of cultivating long-term, deep customer relationships has significantly contributed to our leading market position in the Varian business segment. His outstanding commercial and overall leadership capabilities make John the ideal candidate for this role.”

John Kowal joined the Varian sales team in 2005. From 2010 onward, he held several management positions of increasing scope and complexity and in 2017 he took on the role of president of the Americas for Varian.

John holds a Bachelor of Science degree in mechanical engineering from Worcester Polytechnic Institute and graduated from the executive development program of The Wharton School at the University of Pennsylvania.