| Business | Phone |
| B Ruiz Billing Svc 571 3rd Ave, Chula Vista 91910 | (760) 753-3247 |
| Bonnie's Billing Svc 364 Corte Maria Ave, Chula Vista 91910 | (619) 426-6766 |
| Southern California Physician 765 3rd Ave, Chula Vista 91910 | (619) 425-2737 |
| Physicians Integrated Svc 1181 Via Monada, Chula Vista 91910 | (619) 216-5942 |
| Medical Claims Management 1121 Red Maple Dr, Chula Vista 91910 | (619) 656-8044 |
| Medical International 1112 Cloudwalk Canyon Dr, Chula Vista 91911 | (619) 482-8608 |
| Masters Billing Chula Vista 91910 | (619) 941-2189 |