The mission hospital at Tentena (Department Poso) was mentioned in a document about hospitals in the Minahasa around 1940.
From; Ziekenhuizen Minahasa ca. 1940: An Officer of health 2nd class was charged with health service in the Poso ressort and took charge of the Landscape hospital at Poso and the inspection of the mission hospital at Tentena and the outpatient clinics in the Poso resort. The department Poso has 242,000 inhabitants (Gonggryp 1934), among whom 200 Europeans and almost 2,800 Chinese.