Diseases of the immune system (Immunology)

In our outpatient clinic we treat children with suspected congenital disorders of the immune system. This includes diseases characterized by a weakness of the immune system (immunodeficiency), but also diseases with defective regulation of the immune system and unclear, recurring fever states (auto-inflammation). With our experienced team we run one of the largest immunodeficiency outpatient clinics in Germany. We have special diagnostics that are only available at  few centers in Germany. We are a JMF center, Find-ID certified and listed by the Association for Pediatric Immunology (API) as a so-called CID center. As such, we perform the immediately required diagnostics in case of abnormal SCID screening (for further information please click here). Through collaboration with our pediatric oncology colleagues we have access to all necessary forms of treatment for immunodeficiencies.


Main treatment areas and tests

  • Severe combined immunodeficiencies (SCID)
  • Combined immunodeficiencies (including DNA repair defects such as Ataxia teleangiectasia)
  • Syndromal immunodeficiencies (e.g. immunoosseous dysplasia,…

Consultation hours

  • Monday and Tuesday:
    08:00-12:00h and by arrangement


  • Monday - Thursday: 08:00-15:30h
  • Friday: 08:00-14:00h

Phone: +49 511 532-3251

Fax: +49 511 532-9474

Contact us

The medical team

  • Prof. Dr. med. Ulrich Baumann
  • PD Dr. med. Christian Klemann



The team of the immunological outpatient clinic

  • Tanja Klösel
  • Kerstin Lämmerhirt
  • Melissa Maaß
  • Heidrun Makowsky
  • Britta Petrik

Phone: +49 511 532-3251

Fax: +49 511 532-9474

Information for doctors


Important information for your visit to the outpatient clinic

Helpful information for parents