| Business | Phone |
| Bosler Cline Systems 1314 W Glenoaks Blvd # 202, Glendale 91201 | (818) 956-3214 |
| Glen-Med Med Billings 805 E Broadway # G, Glendale 91205 | (818) 247-4915 |
| Physicians Billing Management 1500 E Chevy Chase Dr # 104, Glendale 91206 | (818) 247-2095 |
| Absolute Control Svc 635 W Colorado St # 205, Glendale 91204 | (818) 541-0088 |
| Best Care Svc 520 E Broadway # 400, Glendale 91205 | (818) 265-3080 |
| Pro-Choice Medical Billing 135 S Jackson St # 100, Glendale 91205 | (818) 247-3600 |
| Pro-Med Billing Svc 1101 E Broadway # 209, Glendale 91205 | (818) 241-2729 |
| Lng Billing Svc 815 S Central Ave, Glendale 91204 | (818) 291-8499 |
| Medical Billing & Collect Svc 321 S Brand Blvd, Glendale 91204 | (818) 240-3781 |
| Mt Zion Medical 4720 San Fernando Rd, Glendale 91204 | (818) 662-9850 |
| A & A Accurate Med Billing Inc 323 N Jackson St, Glendale 91206 | (818) 240-4650 |
| A & G Clearing Hse & Billing 209 N Verdugo Rd, Glendale 91206 | (818) 662-8750 |
| Ans Billing Svc 1209 Irving Ave, Glendale 91201 | (818) 502-1177 |
| Glen Oaks Billing Inc 1530 E Chevy Chase Dr # 205a, Glendale 91206 | (818) 550-0900 |
| Hemodialysis Billing Dept 1509 Wilson Ter, Glendale 91206 | (818) 240-9975 |
| K & S Billing 326 N Kenwood St, Glendale 91206 | (818) 242-7035 |
| Mri Patient Billing 625 N Maryland Ave, Glendale 91206 | (818) 247-6600 |
| Promark Management Co 1614 Victory Blvd # 110, Glendale 91201 | (818) 243-1141 |
| Tech-Med Billing Svc 1930 W Glenoaks Blvd # 10, Glendale 91201 | (818) 972-2626 |
| Usa Billing Svc 560 W Harvard St # 4, Glendale 91204 | (818) 247-6680 |