At St. Josef's Hospital

Practice for radiotherapy in Troisdorf

The practice for radiotherapy in Troisdorf is located in a new side building at St. Josef's Hospital. In order to ensure a well-coordinated therapy concept, the practice team works closely with the doctors at St. Josef's Hospital in Troisdorf, other clinics in the region and local GPs.



  • 2 high-precision linear accelerators, thereof 1 "TrueBeam"
  • Computer tomograph (20-liner) and simulator for irradiation planning
  • Orthovolt device


  • Conformal radiotherapy
  • Intensity-modulated radiotherapy (IMRT and RapidArc)
  • Image-guided radiotherapy (IGRT)
  • Stereotactic radiotherapy (SBRT)
  • Breath-controlled radiotherapy
  • Brachytherapy (in cooperation with Bonn)
  • x-ray radiation

Specailists for radiotherapy in Troisdorf:


  • Priv.-Doz. Dr. med. R. Semrau 
  • Dr. med. Katja Hansemann
  • Dr. med. Frieder Hoehle
  • Nadine Gharbi
  • Dr. med. Sabine Kunze


  • Medical-technical X-ray assistants
  • Practice nurses
  • Medical physicists


To talk about an appointment you can call us at

02241 999 760

Monday to Thursday: 8:00 to 18.00 hrs
Friday: 8:00 to 16:00 hrs

Practice for radiotherapy
at St. Josef-Hospital

Dr. med. D. Völzke
Dr. med. A. Schmitz
Priv.-Doz. Dr. med. R. Semrau 
Priv.-Doz. Dr. med. Dr. phil. H. Rief
Dr. med. T. Wilhelm-Buchstab  

Hospitalstr. 45
53840 Troisdorf