| Business | Phone |
| Computer Billing Svc 16025 Kamana Rd # 201, Apple Valley 92307 | (760) 946-2957 |
| Corey Financial Inc 16048 Tuscola Rd # 4, Apple Valley 92307 | (760) 242-1911 |
| High Desert Medical Billing Co 18231 Us Highway 18 # 6, Apple Valley 92307 | (760) 946-5177 |