- 1990 – 1996: Degree in dentistry at the Ludwig Maximilian University in Munich
- 1996: License to practise medicine
- 1996 – 1998: Worked as a dentist
- 1998: PhD
- 1998 – 2000: Specialist training in the orthodontic practice of Dr Eberhard Saetzler
- 1999 – 2000: Specialist training in the Department of Orthodontics at the LMU Munich
- 2001 – 2007: Partner in the orthodontic practice at the Rotkreuzplatz (Drs. Saetzler & Kirchner)
- 2008: Take-over of the orthodontic practice at the Rotkreuzplatz
- 2008: Establishment of the private practice for paediatric and adolescent dentistry and orthodontics in Bogenhausen (along with Drs Butz, Kirchner, Engler-Hamm)
- 2010: Foundation of the Department of orthodontics at the “Zahninsel” in Munich-North.
- Since 2018: Partner at FÜNF HÖFE orthodontics (Drs Kirchner & Raptarchis)
- Since 2019: European Masters of Aligners (EUMMA)
Member of the following professional societies/associations:
- Deutsche Gesellschaft für Kieferorthopädie [ German Society of Orthodontics], Bund deutscher Kieferorthopäden [Association of German Orthodontists]