| Business | Phone |
| Milwaukie Medical Billing 2080 Se Oak Grove Blvd, Portland 97267 | (503) 786-4100 |
| Acr 8835 Sw Canyon Rd # 236, Portland 97225 | (503) 292-6540 |
| Acs 8835 Sw Canyon Rd # 236, Portland 97225 | (503) 292-6532 |
| Amb Professional Svc 4755 Sw Oleson Rd # 258, Portland 97225 | (503) 291-7134 |
| Anesthesiologists Collection 8835 Sw Canyon Rd # 236, Portland 97225 | (503) 292-6133 |
| Automated Payment Processing 16294 Nw Cider Ln, Portland 97229 | (503) 533-9765 |
| Superior Claims Specialists 515 Nw Saltzman Rd, Portland 97229 | (503) 350-0765 |
| All-N-1 Medical Billing Portland 97201 | (503) 552-9009 |
| American Billing Svc Inc Po Box 66500, Portland 97290 | (503) 657-8663 |
| Sun Medical Business Svc 5331 Sw Macadam Ave # 120, Portland 97239 | (503) 546-2090 |
| Systems Inc Qmedtrix 700 Ne Multnomah St # 12, Portland 97232 | (503) 231-4066 |
| Telecom Medical & Dental Bllng 7302 N Richmond Ave, Portland 97203 | (503) 240-8000 |
| Continental Credit Assn Inc 9828 E Burnside St, Portland 97216 | (503) 231-6565 |
| Professional Practice Mgmt Po Box 13101, Portland 97213 | (503) 528-8404 |
| Quality Medical Billing Svc 1404 Se 151st Ave, Portland 97233 | (503) 253-1653 |
| Docors Billing Svc Portland 97217 | (503) 240-1844 |
| Doctor's Professional Billing 5319 Sw Westgate Dr # 24, Portland 97221 | (503) 297-7223 |
| Portland Billing Svc 3434 Se Powell Blvd, Portland 97202 | (503) 230-1582 |
| Electronic Billing Svc Portland 97236 | (503) 760-7140 |
| Fast-Net Electronic Medical 11954 Ne Glisan St # 407, Portland 97220 | (503) 674-3990 |
| Oic 10123 Se Market St, Portland 97216 | (503) 257-9590 |
| New Horizons Billing Svc Po Box 86511, Portland 97286 | (503) 788-7083 |
| Metropolitan Health Providers Po Box 13510, Portland 97213 | (503) 249-0181 |
| Med Accounts Management Inc 735 N Terry St, Portland 97217 | (503) 283-7895 |
| Medical Claims Recovery 8948 Sw Barbur Blvd # 135, Portland 97219 | (503) 977-0226 |
| Medico Support Svc Inc 202 Nw 20th Ave, Portland 97209 | (503) 274-2385 |
| Concero Group Inc 10220 Sw Greenburg Rd # 500, Portland 97223 | (971) 222-1900 |
| Premier Health Care Billing 9240 Sw Wilshire St, Portland 97225 | (503) 890-6671 |
| Rayn Management Services 515 NW Saltzman Rd #857, Portland 97229 | (503) 407-7447 |