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Dr. Felix Seeliger

Dr. Felix Seeliger

Qualifications & Background

• Born and raised in Salzburg & Upper Austria
• Medical studies at the Medical University of Vienna and Barts and The London School of Medicine (QMU London), 2010–2018
• Basic medical training at Barmherzige Brüder Hospital Vienna, 2019–2020
• Specialist training in Dermatology at the Paracelsus Medical University University Hospital Salzburg, 2020
• Shift to General Practice training (Klinik Ottakring, Klinik Floridsdorf, Evangelisches Krankenhaus Vienna, Praxis Rudolfsplatz Dr. Daniela Danner-de Mendelssohn), 2022–2026

Since his own Post-Covid illness in 2022, Dr Felix Seeliger has been deeply engaged as a patient himself in the field of post-infectious syndromes. It is of particular importance to him to incorporate his personal experiences into the medical care of his patients and thereby offer especially empathetic support to fellow sufferers.

Areas of Focus

• Long/Post-Covid Syndrome & ME/CFS (according to the therapy rhythm of the Long Covid Online Clinic)
• General Medicine, Preventive & Lifestyle Medicine
• MCAS
• Lipid Therapy
• Insulin Resistance/Prediabetes
• GLP-1/GIP Therapeutics

Diplomas & Memberships

• ÖÄK Continuing Education Diploma
• ÖÄK Diploma in Orthomolecular Medicine (in progress)
• Member of the Medical Association of Physicians in Vienna
• Austrian Society of Dermatology and Venereology (ÖGDV)
• Austrian Society of General and Family Medicine (ÖGAM)
• German Society of General and Family Medicine (DEGAM)

​Long Covid Online-Clinic

 

© 2025 by Long Covid Online Klinik Powered and secured by Wix

 

Important Notice:

The Long Covid Online Clinic is an independent company and organizationally separate from Dr. Geiger’s private practice.

Please address all inquiries regarding the online clinic exclusively by email to our team.

The medical assistants at Dr. Geiger’s practice are responsible for internal medicine patients and cannot provide information about the online clinic.

We strive to respond to your request as quickly as possible – thank you for your understanding!

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