Koh Chang Hospital

Bangkok - Koh Chang Hospital (โรงพยาบาลกรุงเทพ-เกาะช้าง) White Sand Beach (Tel: 0 3955 1555, 24 hour Emergency Medical Service: 0179), (private clinic, open 24 hours)
Malaria Clinic (มาลาเรีย คลินิก) Laem Ngop (open: Mon - Fri 08.30 a.m. - 12.00 a.m., 01.00 a.m. - 04.30 a.m.)
P.P.Clinic (พี.พี. คลินิก) Klong Son Bay, opposite Amari Resort (Tel: 0 3955 7211 (09.00 a.m. - 8.00 p.m.), 08 5222 3935 (24 hours)), (private clinic, also plastic surgeon, open 24 hours)
Koh Chang Dental Clinic (คลินิกทันตกรรมเกาะช้าง) Klong Prao Beach, opposite Amari Resort (Tel: 08 6320 0702, 0 3955 7235, open: 10.00 a.m. - 05.00 p.m.), (private clinic)
Koh Chang Hospital (โรงพยาบาลเกาะช้าง) East Coast, Baan Klong Nonsi (Tel: 0 3952 1657, opening-hours: Mon - Fri from 08.30 a.m. - 15.30 p.m., Sat - Sun only for emergencies)
The National Trat-Hospital (โรงพยาบาลตราด) 108 Sukhumvit Road, Tambon Wangkrajae, Amphoe Muang (Tel: 0 3953 1784-86, open 24 hours)
The Private Bangkok-Trat Hospital (โรงพยาบาลกรุงเทพ-ตราด) 376 Mu2 Sukhumvit Road, Tambon Wangkrajae, Amphoe Muang (Tel: 0 3593 2735, open 24 hours)

There are clinics in the following villages:

Baan Klong Son (Khlong Son Bay)
Baan Klong Prao (Klong Prao Beach)
Baan Kai Bae (Kai Bae Beach)
Baan Bang Bao (Bang Bao Bay)
Baan Salak Phet (Salak Phet Bay)
Baan Chek Bae (Salak Phet Bay)
Koh Chang Dental Clinic (private clinic, opposite Amari Resort) (Klong Prao Beach)

Tel. 086 / 32 007 02, opening-hours: 10.00 am - 5.00 pm.

If it is just medicine you are after, then there are plenty of pharmacies all over the island. In the case of a severe case it is advised to go to one of the hospitals in mainland Trat province or even return to Bangkok.