Alliance HealthCare Services, Inc. (NYSE:AIQ), a leading national provider of outpatient diagnostic imaging and radiation therapy services, has been awarded the Exceeding Expectations Award for 2008 by Avatar International, an industry leader in healthcare quality improvement services. Alliance also earned the award in 2007.

Commending Alliance, David Medvedeff, PharmD, MBA, CEO of Avatar, said, “The hallmark of exceptional service to patients is to consistently meet or exceed their expectations — not always an easy task. Alliance has demonstrated that it exceeds its patients’ expectations in a tangible and measurable manner. As a winner of Avatar’s Exceeding Patient Expectations Award, I congratulate Alliance for its continued and impressive efforts to put patients first.”

Paul S. Viviano, Chairman of the Board and CEO of Alliance HealthCare Services, stated, “We are very pleased to have earned this national honor for the second consecutive year. Alliance’s focus on clinical quality, providing demonstrably superior care to Alliance’s patients, is central to our mission, vision and values as well as our company’s success. This award is one of the many important ways in which we measure our efforts.”

About Alliance HealthCare Services

Alliance HealthCare Services is a leading national provider of shared-service and fixed-site diagnostic imaging services, based upon annual revenue and number of diagnostic imaging systems deployed, and a provider of radiation therapy services. Alliance provides imaging and therapeutic services primarily to hospitals and other healthcare providers on a shared and full-time service basis, in addition to operating a growing number of fixed-site imaging centers. The Company had 501 diagnostic imaging and radiation therapy systems, including 294 MRI systems and 119 PET or PET/CT systems, and served over 1,000 clients in 46 states at March 31, 2009. The Company operated 106 fixed-site imaging centers (four in unconsolidated joint ventures), which includes systems installed in hospitals or other buildings on or near hospital campuses, medical groups’ offices, or medical buildings and retail sites. The Company also operated 22 radiation therapy centers and stereotactic radiosurgery facilities (two radiation therapy centers are in unconsolidated joint ventures) as of March 31, 2009.

About Avatar

Avatar (www.avatar-intl.com), a research and consulting company based in Orlando, FL, specializes in Evidence Based Intelligent Surveys™ and Innovative Strategies™ to transform information into significant quality and efficiency of care improvement for the healthcare industry. In addition to conducting surveys, Avatar also actively engages healthcare providers in process improvement, including training in service quality. Avatar serves healthcare organizations nationally, including small community hospitals, academic medical centers, large regional medical centers, integrated healthcare systems, long-term care and behavioral health organizations.

Corporate Communications Contact:
Alliance HealthCare Services
Charlene Lewis
Director of Communications
949-242-5358
or
Investor Relations Contact:
Alliance HealthCare Services
Howard Aihara
Executive Vice President
Chief Financial Officer
949-242-5300