PD Dr. med. Stefan Lange
Chief Scientific and Medical Officer
![](https://www.dierks.company/wp-content/uploads/Stefan-Lange-portrait.jpg)
About Stefan
Dr. Stefan Lange is Chief Scientific and Medical Officer at Dierks+Company.
He is a renowned specialist in the scientific evaluation of medical interventions and an expert in evidence-based medicine, advising on the optimisation and evaluation of studies for the benefit assessment of drugs and methods.
Prior to joining Dierks+Company, Dr. Lange was Deputy Director at the Institute for Quality and Efficiency in Health Care (IQWiG). Together with Prof. Sawicki, Prof. Windeler and Dr. Kaiser, he has significantly influenced the activities of IQWiG since 2005. As an independent institution, IQWiG investigates the benefits and harms of medical interventions and assesses the advantages and disadvantages of diagnostic and treatment methods. IQWiG's reports, which include drugs, non-drug treatments, diagnostic and screening procedures, treatment guidelines, and Disease Management Programs (DMPs), are crucial for decisions made by the Federal Joint Committee (G-BA) or the Federal Ministry of Health (BMG) regarding which medical services are covered by statutory health insurance.
Stefan Lange studied medicine at Heinrich Heine University in Düsseldorf from 1982 to 1989 and received his doctorate there in 1994. From 1989 to 1993, he worked as a physician at the Medical Clinic of the Ferdinand Sauerbruch Klinikum in Wuppertal. In 1993, he moved to the Department of Medical Informatics, Biometry, and Epidemiology at Ruhr University Bochum. In 1999, he obtained the Certificate of Biometry in Medicine from the German Society for Medical Informatics, Biometry, and Epidemiology (GMDS). In 2003, he was habilitated at the Ruhr University Bochum and awarded the title of Privatdozent.
In November 2004, he joined IQWiG, where he headed the „Non- Drug Interventions“ department until the end of 2007. Since 2005, he has served as Deputy Director. In recent years, he has contributed to the development of the EU-HTA at the European level for IQWiG.