

Dr. Ralf Kleef is a well known and acclaimed medical and natural doctor specialized in Immunotherapy
He founded his Insitute for Hyperthermia and Immunotherapy in 1998 in Vienna and treated more than 11.000 patients there. His journey goes on with establishing a new center in Hungary.

Dr. Kleef’s healing concept: Immunotherapy treatment combined with Hyperthermia
Complementary medicine in an integrative approach personalized for each and every individual to support the patient organism to fight with cancer and chronic illnesses.
Services
Dr. Ralf Kleef - By individualizing the therapy of all patients, each therapy plan is created separately, taking into account all components.
Whole Body Hyperthermia
Immunotherapy
Ozone Therapy
High Dose Vitamin C
Post-COVID Treatment
ABOUT US
Our 23 years of achievements
Under the direction of Dr. Ralf Kleef, the employees of
“Dr. Kleef - Hyperthermia
”since 1998 with the research,
development and application of advanced cancer therapies.
Qualified Team
Our team is sensitive and well trained
Top Equipment
Latest medical technology 2021 - quality guarantee
High Quality Results
11,000 patients trust in our care
Certified Medical Institute
Our ordination is certified by the dr
Incomparable Expertise
Our team of doctors ensures competence and experience
Numerous Awards
Annual presentations at ITOC, ESGO & Co

We are welcoming our patients at our new healing establishment at Dr. Kleef Immunotherapy Center in Hungary
We equipped with one of the most effective Hyperthermia device, we offer more speciality medical services and are treating our patients with greater team of medical professionals.
Happy patients
Thousands of patients report their healing experiences
What a remission! In 2012, I was unexpectedly diagnosed with vocal cord cancer. The growth could be removed by laser surgery, but it came back again and again in the Following years.
Michael Kutalek
As a physiologist, I was able to research and compare cancer treatments From clinics all over the world. In my opinion, this is the best choice For treatment there is.
Jeffrey H
Dr. KleeF is one of a kind. After my wife was diagnosed with stage IV breast cancer, we tried many treatments, both conventional and integrative around the world.
David Ashville
Our approach
The process we follow
Contact
Introduction & greeting
Discussion of all previous findings
Description of the entire prehistory
Preparation of the medical anamnesis
Individualization of the therapy plan
Preparation of the documents (24h)
Sending of appointment & cost plan
Contact us today to schedule your initial call!
In the first meeting, the therapy plan is determined, all findings are discussed and the anamnesis is taken.

