Diakonhjemmet | 2,689 followers on LinkedIn. Diakonhjemmet stiftelse – ideell og diakonal stiftelse med virksomheter innen helse, omsorg, utdanning og forskning | Hospital, Specialized University and Care The headquarter is located at Majostuen in Oslo, Norway. Diakonhjemmet Hospital is responsible for general hospital services for approximately 135,000 inhabitants in Oslo. The Hospital specialises in the fields of rheumatology and rheumatic surgery.