Studied medicine at the University of Innsbruck and Graz. He worked from 1990 to 2003 in the health center in Dellach am Wörthersee, from 1992 as medical director. Since 2004 organization and medical management of VIVAMAYR in Maria Wörth.
He is interested in complementary medicine methods, training in manual medicine, homeopathy, neural therapy as well as diagnostics and therapy according to Dr. F. X. Mayr, functional myodiagnostics and orthomolecular medicine, environmental doctor.
Dr. Stossier is President of the International Medical Association for Functional Myodiagnostics and the Orthomolecular Medicine Platform, Advisor for Complementary Medicine; Cooperation in the establishment and integration of complementary medicine in the area of the medical association. 2016 professor for Applied Kinesiology in Reabilitation at Ludes University Lugano, Switzerland
Numerous publications on nutrition topics (F.X.Mayr Medizin, Candidate diet, allergies) and international lectures.