Ray Aller graduated from Harvard Medical School in 1976. He completed residencies in laboratory medicine and anatomic pathology at the University of California in San Francisco. He is currently Emeritus Clinical Professor at the University of Southern California and focuses his practice on strengthening labs in limited income countries, particularly by educating his colleagues about the use of laboratory information systems in these settings.
Ray's major areas of research interest are the evolution of laboratory information systems. His MD thesis served as the basis for development of several other surgical pathology information systems, including CoPath. For the past three decades, he has guided development of laboratory information systems in the United States, through his books, and his publications in CAP Today and elsewhere. He has worked on several projects to enhance interoperability standards, including SNOMED (1976), HL7 (1979), and LOINC (1987 and ongoing). In 1991, he launched the initiative to board-certify physicians in clinical informatics; in 2013 this reached fruition with the first ABMS/APM/ABP certification exam. He established the automated disease surveillance system for Los Angeles County Public Health, encompassing 50 hospitals and 21 laboratories. He has advocated for implementation of positive patient identification via biometrics.