Expertise | Leadership

Leadership Team

CDI Management Corp. is the management company for RAYUS Radiology (RAYUS), Insight Imaging, and our respective affiliated partners. Through the national management, local operations and clinical teams, we focus on providing efficient operations and clinical best practices to ensure quality patient care and customer service for the clinicians and patients we serve.

We understand our business, industry and our customers’ needs, and having a centralized team allows us to do what we do best every day. Our RAYUS corporate management team is located in Minneapolis, MN with various operations, IT and revenue cycle management functions located in Lake Forest, CA; Wexford, PA; and Buffalo, NY.

  • Kim Tzoumakas, Chief Executive Officer
    Kim Tzoumakas

    As CEO, Kim leads the country’s largest privately owned diagnostic imaging provider, overseeing a national network of imaging centers, ambulatory surgery centers, and mobile imaging solutions.

    Prior to joining RAYUS, Kim served as CEO of 21st Century Oncology (21CO), one of the largest integrated cancer care networks in the world with 347 locations in the U.S. and several Latin American Countries. At 21CO, she successfully partnered with the company’s team of more than 1,000 physicians and 3,000 employees to accelerate growth through best-in-class clinical delivery and patient satisfaction.

    Kim has more than 20 years of health care leadership ranging from strategic planning and growth to physician relationships and key strategic partnerships. She has provided strategic, transactional and governance advice to health care clients throughout the United States including serving as an advisor to several non-profit and for-profit boards.

  • Ryan Raschke, Chief Financial Officer

    Ryan joined RAYUS in 1998 as a financial analyst and has held various positions in the Accounting, Finance, and Treasury areas of the company. In his most recent role leading our Treasury organization, Ryan has played a key role in managing and maintaining RAYUS’s strong balance sheet and capital structure. In 2015, Ryan led the process of restructuring our debt financing, which allows us to have lower cost of borrowing to maintain our existing infrastructure and to fund our future growth projects.

    As Chief Financial Officer, Ryan provides leadership and oversight for the accounting, financial planning and analysis, internal audit and treasury/cash management departments. He holds an M.B.A. from the University of St. Thomas and a B.S. from Iowa State University.

  • Amy Garrigues, Chief Strategy and Development Officer
    Headshot for Amy Garrigues, Chief Administrative Officer at CDI.

    Amy Garrigues serves as the Chief Strategy and Development Officer of RAYUS.  In this capacity, Amy leads and provides broad strategic oversight and direction to RAYUS.  Amy oversees the business development, managed care, clinical research, legal, compliance, management services, and marketing departments. Amy has more than 15 years of experience advising health care companies and Board of Directors on strategic and growth initiatives.  Prior to joining RAYUS, Amy was the Executive Vice President and Chief Legal Officer for 21st Century Oncology, overseeing its operational and strategic transformation.  Amy has also previously served as a health care partner with King & Spalding LLP and as a health care strategy consultant with The Boston Consulting Group.  She holds an A.B. from Harvard College and a J.D. from Harvard Law School.

  • Christopher “Kit” Crancer, SVP, Rad Partnerships and Policy, Executive Director of Quality Institute

    As the Vice President of Public Policy, Christopher “Kit” Crancer is responsible for leading policy strategies at the national and state levels that enhance RAYUS’s commitment to providing quality care and services to patients and clinicians. He joined RAYUS in 2015 as the organization’s Director of State Legislative Policy, and has since developed extensive policy knowledge in the imaging industry. He’s been instrumental in lobbying for countless pieces of health care legislation that allows RAYUS to continue delivering high-quality imaging services across the country.

    Additionally, Kit also serves as the Executive Director of the RAYUS Quality Institute, where he oversees and implements programs and initiatives that benefit clinicians and patients in our local communities.

  • Per Normark, General Counsel

    Per Normark leads RAYUS’s legal, compliance and risk management teams. He is a seasoned health care attorney with more than 30 years of experience. Prior to joining RAYUS, Per served as the vice president, general counsel and compliance officer of MedQuest Associates, Inc. He was also the Assistant Attorney General for the state of Georgia and an attorney for the United States Department of Interior. He is an active member of both the Minnesota State Bar Association and the American Health Lawyers Association.

  • Robert Cherney, Executive Vice President of Operations

    Rob Cherney is the Executive Vice President of Operations. Cherney has been a part of RAYUS’s operational leadership team for more than 10 years, most recently as a SVP/GM of Operations. Cherney is responsible for oversight of all fixed site operations for RAYUS’s national network of more than 120 imaging centers. In a variety of leadership roles with RAYUS, Rob has been responsible for driving significant new market growth and expansion in Minnesota, Missouri, Oregon and Washington. He has a wealth of experience in all levels of national and regional center operations with particular expertise in assessing, evaluating and addressing operational efficiencies, radiologist relationships and business development. He earned his Bachelor of Arts degree in Business/Corporate Communications from University of Saint Thomas.

  • Tiffany Spartz, SVP, Operations and Practice Management

    Tiffany Spartz has been a part of the RAYUS sales and operational leadership team since 2011, currently serving as the SVP of Operations and Practice Management for Foundation Radiology Group.  She has worked closely with our outpatient centers, hospital partnerships, and radiologists during her tenure with the organization.  Her commitment to delivering quality care to each clinician and patient we serve has been unwavering.

  • Patrick Morey, Executive Vice President of Operations

    Patrick Morey is joining RAYUS as an EVP of Operations. Patrick will partner with Rob on operational leadership as well as lead some important company-wide initiatives.  Patrick has a strong background in Operations and strategic success in a diverse range of healthcare roles. Patrick is passionate about improving organizational effectiveness and solving challenging business problems to ultimately help patients. Patrick has an MBA from The Wharton School and will be based in California.

  • Peggy Reimer, Chief People and Culture Officer

    Peggy Reimer is the Chief People and Culture Officer for RAYUS.  In this role, she leads the HR team and together they develop and deliver programs and services that support the needs of team members and help the company achieve its goals.  Peggy joined RAYUS in June 2021. Her experience spans a variety of industries and organizations, but has spent most of her career in healthcare.  She chose to join the company because of its strong reputation for quality patient care and the opportunity to be a part of its future as it sets out to expand its national network and establish itself as the preeminent leader of radiology in the country. Peggy holds a B.A. in Business/Entrepreneurship from the University of St. Thomas.

  • Tim Krzyzanowski, Executive Vice President of Hospital and Clinical Solutions

    Tim Krzyzanowski, EVP of Hospital and Clinical Solutions, oversees hospital partnership imaging needs to include full service, short and long-term MRI, PET/CT and CT mobile diagnostic imaging and staffing solutions to hospitals, clinics and other health care organizations across the US and Canada.  Additionally, he is responsible for all facilities, new construction projects, procurement, and overall imaging engineering and technology.

    Tim has more than 30 years of national and international experience in the diagnostic imaging industry. He joined RAYUS from GE HealthCare where he was Vice President and General Manager–Imaging for Europe and Russia. Prior to that, he was one of GE’s General Managers for diagnostic imaging business in the U.S. He has also served as Executive Vice President & General Manager for Cassling, a Siemens Healthcare Distributor, and nearly 20 years in a variety of sales leadership positions with Philips Medical Systems.