| Business | Phone |
| Apria Healthcare 2110 Overland Ave # 129, Billings 59102 | (406) 245-7050 |
| Community Home Oxygen Inc 2030 4th Ave N, Billings 59101 | (406) 245-9792 |
| Lincare 1375 4th Ave N # F, Billings 59101 | (406) 652-0771 |
| Lincare Inc Co Oxygen Co 2712 7th Ave N, Billings 59101 | (406) 248-1390 |