[23] This continued in February 2020 with Cerner selling parts of its healthcare IT business in Germany and Spain to German company CompuGroup Medical SE for €255 million.

The memo, written in harsh language, was meant to motivate the managers to get more productivity out of employees and promised layoffs, a hiring freeze, closing of an "Associate Center," and the implementation of a punch-card system if Patterson did not see evidence of changes.

This report helped drive growth in the electronic health record and billions of dollars in federal incentives to hospitals and doctors.

A 2013 reassessment of the 2005 report by the RAND Corporation said that the conversion had failed to produce savings and had mixed results in efficiency and patient care.

[33] The Cerner Millennium product, including the FirstNet, SurgiNet/SurgiNet Anaesthesia and RadNet platforms, form the Integrated Electronic Medical Record (ieMR) system in the state of Queensland, Australia.

In early 2019, allegations arose surrounding an undeclared relationship and conflict of interest between Richard Ashby, chief information officer of eHealth Queensland, and a Cerner employee.

The allegations resulted in the resignation of Ashby, the matter being referred to the Queensland Crime and Corruption Commission for investigation, and the collapse of the PAS replacement project.

The implementation, which cost $230 million,[39] was met with widespread criticism, with staff calling it a "huge failure" due to an increase in software errors resulting in reduced efficiency of the department.

[40] An investigation by British Columbia's Health Ministry indicated that the project was not correctly planned or implemented and that organizational dysfunction at the facility contributed to the failure.

[41] In 2014, a coroner ruled that a three-year-old heart patient died as a result of a delay to his treatment at Bristol Royal Hospital for Children.

[43] Cerner's 2002 installation of a computerized health system in the UPMC Children's Hospital of Pittsburgh was said to have made doctors and nurses less effective in emergency situations.

"[44] Defenders of Cerner in the study charged that the Pittsburgh hospital did not adequately prepare for the transition to the Computerized Provider Order Entry (CPOE) system because it had simultaneously modified its pharmacy process, did not provide adequate wireless bandwidth, and did not have order sets pre-programmed on day one.

[45] Girard Medical Center in Crawford County, Kansas, hired Cerner in 2010 to install an electronic records system.

According to a lawsuit Girard filed against Cerner, the company received $1.3 million from the county but failed to get the system running in time to qualify for federal incentive payments, and in September 2011 notified the hospital that it was abandoning the project.

[49] A 2014 California grand jury found that Cerner knew the Ventura County healthcare agency was unprepared to complete a $32 million installation.

Also in 2014, a $31 million Cerner implementation at the Athens Regional Health System in Georgia had many problems, leading to forced resignations by the CEO and the CIO of ARHS.

[50] In 2022, the director of the Västra Götaland region sent a letter to Cerner claiming a breach of contract for deployment of the Millennium system.