• Habilitation und Lehrbefugnis für das Fach Hals-Nasen-Ohrenheilkunde
  • Mitglied der medizinischen Fakultät der Universität Duisburg-Essen
  • Teilgebietsradiologie Digitale Volumentomographie (DVT) in der Schädeldiagnostik (AEKNO)
  • Zertifizierter Studienleiter für AMG und MPG
  • Mitglied der Prüfungskommission der Ärztekammer Nordrhein für Facharztprüfungen HNO und Plastische Chirurgie
  • Präsident Landesverband Ambulantes Operieren LAO — NRW


Dr. Bergmann was born in Alzenau/Lower Franconia in Germany in 1976. He studied medicine in Frankfurt and Munich, and he completed his studies with a doctoral thesis at the Max Planck Institute in Munich. This was followed by a clinical residency at the Head and Neck Tumor Center in Linsköpping/Sweden and a research residency at the Cancer Institute of the University of Pittsburgh, USA. Specialized training and senior physician at the Ear, Nose and Throat Clinic of the University Hospital Essen. From 2015 to 2020 he was a partner of the HNO Praxis Ruhr regional joint practice in Essen. Since 2021, Dr. Bergmann took over Conservative and Operative Ear, Nose and Throat Medicine Department in the RKM740 Clinic.


  • American Association of Cancer Research (AACR)
  • Ärztliche Vereinigung deutscher Allergologen (AeDA)
  • American Head and Neck Society (AHNS)
  • American Association of Immunologists (AAI)
  • Deutsche Gesellschaft für Hals-Nasen-Ohrenheilkunde (DGHNO)
  • Deutscher Hochschulverband (DHV)
  • European Academy of Allergy and Clinical Immunology (EAACI)
  • European Academy of Facial Plastic Surgery (EAFPS)
  • Gesellschaft Deutscher Naturforscher und Ärzte (DGNÄ)
  • Interdisziplinäre Arbeitsgemeinschaft Kopf-Hals-Tumore (IAG-KHT)
  • International Cancer Microenvironment Society (ICMS)
  • International Society for Biological Therapy of Cancer (ISBTC)
  • Norddeutsche Gesellschaft für Hals-Nasen-Ohrenheilkunde (NdHNO)
  • Österreichische HNO – Gesellschaft

Science and publications

Since 2020 — member of the Advanced Training Commission of the North Rhine Medical Association

Since 2018 — instructor at the Graz Paranasal Sinus Surgery Course, Graz, Austria

Since 2018 — established and managed an allergology course for clinicians (basic/advanced), Essen

Since 2018 — member of the examination committee for specialist examinations in the fields of ear, nose and throat medicine and plastic surgery at the North Rhine Medical Association

Since 2017 — member of the AllergoImmunology Taskforce of the European Allergology Association (EAACI)

2015 to 2018 — lecturer at the Advanced Allergology Course, Department of Otorhinolaryngology, University of Dresden

Since 2015 — speaker at numerous advanced training events in the field of immunology/allergology

2013 to 2014 — Deputy Head of the ENT Research Laboratory at the ENT Clinic, Essen University Hospital

2012 to 2014 — Head of Clinical Research and Studies at the ENT Clinic, University Hospital Essen

2012 to 2014 — lecturer at the ENT Clinic, University Hospital Essen

2013 to 2015 — course leader of Endoscopic Skull Base Surgery Course at the ENT Clinic, University Hospital Essen

2012 — habilitation and venia legendi in ear, nose and throat medicine

2010 to 2014 — member of the Faculty Council of the Faculty of Medicine, University of Duisburg-Essen

2010 to 2014 — regular participation in appointment commissions, APL commission, research commission of the Faculty of Medicine, University of Duisburg-Essen

2009 to 2010 — member of the Global Young Faculty, Mercator Foundation

2008 to 2011 — leader of the DFG working group

2008 to 2010 — Mediment Peer career funding at the University Hospital Essen

Since 2007 — Supervision of doctoral theses (Dr. med., Dr. rer. nat.)

Since 2007 — teaching position at the ENT Clinic, University Hospital Essen

2005 to 2007 — Research Fellowship Cancer Institute University of Pittsburgh (Theresa Whiteside)

2002 to 2004 — PhD thesis at the Max Planck Institute for Molecular Biology (Axel Ullrich)

Scientific awards

2020 — research award from Bencard GmbH

2019 — research award from Bencard GmbH

2014 — Best Poster Award, West German ENT Society annual conference

2014 — Best Poster Award, European Dermatological Annual Conference

2014 — Second Award, Research day of the Medical Faculty, University of Essen

2013 — Anton von Tröltsch Prize—the highest scientific award for ENT

2012 — Mini-Clinical Fellowship Prof. Stammberger Graz via the German ENT Academy

2011 — Leopoldina National Academy of Sciences travel grant

2011 — Award for the best Clinical Examination course

2010 — Award of the Wilhelm-und-Else-Heraeus Foundation within the framework of the Society of German Natural Scientists and Doctors

2010 — “Johannes-Zange-Preis”—North German ENT Society

2009 — “WTZE Förderpreis”—research award from the West German Tumor Center

2008 — “Plester Prize”—award for the best dissertation in ENT

2008 2007 — “Federation of Clinical Immunologists Society FOCIS Travel Award”

2006 — “Association of Head and Neck Surgery AHNS Travel Award”

2005 — “Phillip Morris External Research Program Scholarship” Various reviewed research grants from the German Research Foundation, Rudolf Bartling Foundation, IFORES UK Essen, Mercator Foundation, Else Kroener Fresenius Foundation 48

Scientific original and review articles in peer-reviewed journals

Bergmann C, Strauss L, Lang S, Zeidler R, Whiteside TL. (2007) Expansion and characteristics of human T regulatory type 1 cells in co-cultures simulating tumor microenvironment. Cancer Immunology Immunotherapy 56 (9): 1429–42.

Bergmann C, Strauss L, Lang S, Zeidler R, Whiteside TL. (2007) Expansion of human T regulatory type 1 cells in the microenvironment of COX 2 overexpressing head and neck squamous cell carcinoma. Cancer Research 67(18): 8865–73.

Strauss L*, Bergmann C*, Szcepanski M, Lang S, Kirkwood J, Whiteside TL. (2008) Expression of Inducible Co-Stimulatory Molecule (ICOS) on human activated tumor-infiltrating CD4+CD25highFoxp3+ T regulatory cells: impact and implications on tumor-mediated immune suppression. Journal of Immunology 180(5): 2967–80.

Bergmann C, Strauss L, Wang Y, Szcepanski M, Lang S, Johnson JT, Whiteside TL. (2008) T regulatory type 1 cells (Tr1) in squamous cell carcinoma of the head and neck and their role in disease progression. Clinical Cancer Research 14(12): 3706–15

Bergmann C, Wimmer E. (2009) Role of receptor tyrosine kinases in tumor progression of the head and neck. HNO 57(2):123–32. Wild CA, Brandau S, Lindemann M, Hoffmann TK, Lang S, Bergmann C. (2010) Toll-like receptors in regulatory T cells of patients with head and neck cancer. Archives of Otorhinolaryngology 136(12): 1253–9.

Bergmann C, Bachmann HS, Bankfalvi A, Lotfi R, Pütter C, Wild CA, Schuler P, Greve J, Hoffmann TK, Lang S, Scherag A, Lehnerdt GF. (2011) Toll-like receptor 4 single-nucleotide polymorphisms Asp299Gly and Thr399Ile in head and neck squamous cell carcinomas. Journal of Translational Medicine 9(1): 139.

Bergmann C*, Wild CA*, Narwan M, Lotfi R, Lang S, Brandau S. (2011) Tumor-induced regulatory T cells and naturally occurring Tregs differentially :affect NK cells activated by interleukin 2 or target cells. European Journal of Immunology 41(12): 3564–73.

Wild CA, Brandau S, Lotfi R, Mattheis S, Gu X, Lang S, Bergmann C. (2012) HMGB1 is overexpressed in tumor cells and promotes activity of regulatory T cells in patients with head and neck cancer. Oral oncology 48(5): 409–16.

Wild CA*, Bergmann C*, Fritz G, Schuler P, Hoffmann TK, Lotfi R, Westendorf A, Brandau S, Lang S (2012) HMGB1 conveys immunosuppressive characteristics on regulatory and conventional T cells. International Immunology 24(8):485–94.