| 3991 | OHANA MEDICLINIC | BLOCK 4805-0-1 , JALAN PERDANA CDB PERDANA 2, | 63000 | Cyberjaya | Selangor | +603-83221525 | No | |
| 3992 | OLUMIS CLINIC | GROUND FLOOR LOT NO.3 KEDAI SEDCO FASA 2 TONGOD | 89320 | Ranau | Sabah | +6013-8685954 | No | |
| 3993 | OLUMIS CLINIC | GROUND FLOOR, LOT 12 BANDAR TELUPID JAYA, PEKAN TELUPID BARU 89300 TELUPID SABAH | 89300 | Ranau | Sabah | +608-9520558 | No | |
| 3994 | ONE HEALTH CLINIC DIAWAN | PT 4552, GROUND FLOOR JALAN HARUAN, MAMBANG DIAWAN | 31950 | Kampar | Perak | +605-4670098 | No | |
| 3995 | One Med Clinic | 2400 (TINGKAT BAWAH), JLN KG BARU | 14000 | Bukit Mertajam | Penang | +601-07022848 | No | |
| 3996 | ONYX HEALTHCARE CLINIC SDN. BHD. | Lot 3, Ground Floor, Silvergate Plaza, Jalan Taipakkung, | 88200 | Kota Kinabalu | Sabah | +608-8416393 | No | |
| 3997 | ORCHID FAMILY POLYCLINIC | 50 Jalan Serampang Taman Pelangi | 80400 | Johor Bahru | Johor | +607-3316688 | No | |
| 3998 | Orion Clinic | Orion Clinic, A-01-03, Tamarind Square | 63000 | Cyberjaya | Selangor | +603-88008934 | No | |
| 3999 | Osel Clinic | 3A-1-19, STRAITS QUAY JALAN SERI TANJUNG PINANG 10470 TANJUNG TOKONG PULAU PINANG | 10470 | Pulau Pinang | Penang | +604-3059322 | No | |
| 4000 | Osel Clinic | 213, Jalan Macalister, 10400 Georgetown, Pulau Pinang | 10400 | Pulau Pinang | Penang | +6012-8898523 | No | |