Our Team

Bob Hiatt
CFO
ROBERT L. HIATT is the Company’s Chief Financial Officer as of April, 2023. Previously Mr. Hiatt has served as Chief Financial Officer of a public wholesale mortgage company and a private financial services company.
Carlos Castilleja
EVP, Region Americas, Elekta
CARLOS CASTILLEJA currently serves as Executive Vice President for Region Americas at Elekta, a global leader in precision radiation medicine that builds hope for everyone dealing with cancer. Carlos has held sereral leadership positions at Elekta last 16 years.
Craig K. Tagawa
CEO
CRAIG K. TAGAWA has been CEO of GK Financing since 1995. Mr. Tagawa is the former Chair of the Industrial Policy Advisory Committee of the Engineering Research Center for Computer-Integrated Surgical Systems and Technology at The Johns Hopkins University.
Ernest Bates
VP International Sales
ERNEST R. BATES is Vice President of International Sales and Marketing effective May 3, 2022. He joined the Company in January 2007 as Vice President of Sales and Business Development. He was on the Board of Directors of the Company from 2004 through February 2007.
PETER GACCIONE
President & COO
PETER GACCIONE serves as President and COO of GK Financing and has over 40 years of experience in the global Radiation Oncology and Imaging business. Most recently, he served as President and a Member of the Executive Management Board of Myocardial Solutions Inc.
PETER GACCIONE
Chief Executive Officer, ASHS
PETER GACCIONE is CEO effective March 2023. Previously he was Chief Operating Officer. He joined the Company in September 2022 and has over 40 years of experience in the global Radiation Oncology and Imaging business.
Ranjit Pradhan
Head of Marketing & Customer Advocacy
RANJIT PRADHAN is Head of Marketing and Customer Advocacy effective February 2023. Ranjit has 30 years of experience in Healthcare in a variety of roles that span product management, marketing, technology and general management.
RAYMOND C. STACHOWIAK
Executive Chairman, ASHS
RAYMOND C. STACHOWIAK is the company’s Executive Chairman as of March 2023. He has served as CEO since October 2020 and earlier served as Interim President and CEO from May 2020. He joined the board in 2009.
Timothy Keel
VP Sales USA
TIMOTHY J. KEEL currently serves as Vice President of Sales and Marketing. He joined the Company in May of 2022 and has over 30 years of experience in the healthcare finance sector.