The Protestant hospital of Amoerang was founded by the local church organization in 1931. Its management was entrusted to the Hulpprediker (Auxiliary clergyman) of Amoerang. The hospital had an indigenous doctor (Inlandse arts) and disposed of free medicine. Its capacity was 12 beds. With the decision of the Chief DVG of 20 December 1935 the town was renewed designated as a  standplaats (medical post) of a Gouvernements Indisch arts (Government appointed indigenous doctor). Amoerang again became a medical resort(Decision DVG 38542/I). This information was obtained from a Memorie van Overdracht (Memorandum of transfer of Office) of the departing Resident about 1940.

Amoerang was the main town of the sub department Amoerang of the Residency Manado. It was part of the Minahasa region in the northern part of Celebes (Gonggryp 1934, 27).

Nowadays (2020), this hospital is called Rumah Sakit Umum Gereja Masihi Injili Minahasa Kalooran Amurang, Shortened:
RSU GMIM Kalooran Amurang. The hospital is classified as a category C hospital (registration code: 7105116) with 166 beds.
It is established at Kelurahan, Buyungon, Lingkungan V, Buyungon, Kec. Amurang, Kabupaten Minahasa Selatan (Sulawesi Utara).
Coordinates: 4.87 and 52.31.
The website of this hospital is : https://www.rsugmimkalooran.com.

Froms this website we copied a few statements on its history (Google translated and abbreviated):

A brief History
In 1914 health services through missionaries began in the form of a simple Polyclinic and Treatment Room organized by Ds.Graafland. In September 1929 the congregation from the Amurang and Kumelembuai classes established the Protestansch Ziekenhuis Amurang with a capacity of 12 beds and the leadership of the hospital at that time was Dr. Masoko.

During the Japanese occupation, the management of this hospital was taken over by the Japanese Government, then after the end of the Japanese occupation, its management remained in the hands of the Government of the Republic of Indonesia, in this case the Regional Government of Minahasa until 1970.

On February 14, 1970 the local government of Minahasa handed back the hospital to the Synod Work Committee of the Minahasa Christian Evangelical Church and from then on it was named Kalooran Hospital GMIM Amurang.

GMIM Hospital Kalooran Amurang was inaugurated on December 16, 1984 by the Governor of North Sulawesi Province Head Level I Region G.H.Mantik, with the status of being under the ownership of the Minahasa Evangelical Christian Church BPMS and as the organizer is the GMIM Medika Foundation which oversees the hospital unit.

GMIM Kalooran Amurang Hospital is a type C hospital. Currently GMIM Kalooran Amurang General Hospital is led by Dr. Billy Manengkei, M.Kes as Acting Director.

In 2012 RSU GMIM Kalooran Amurang was accredited for passing the elementary level with a validity period of 02 May 2012 to 02 May 2015, in 2016 it was accredited for the 2012 version, it passed the Middle Level, it was valid for 1 December 2016 to 9 November 2019, in 2019 it was accredited for the SNARS version pass Main Level 28 October 2019 to 27 October 2022

RSU GMIM Kalooran provides various types of medical services including general clinics, specialist clinics, emergency rooms, and inpatients consisting of class I, II, III, VIP which are equipped with laboratory, radiology, pharmacy, and anesthesia services.