| Business | Phone |
| Adventist Health/Audiology Svc 10201 Se Main St # 4, Portland 97216 | (503) 251-6350 |
| Audiology Associates 2222 Nw Lovejoy St # 607, Portland 97210 | (503) 227-5109 |
| Portland Ear Testing Center 921 Nw 18th Ave, Portland 97209 | (503) 227-3668 |
| Oregon Tinnitus Treatment Clnc 825 Ne 20th Ave, Portland 97232 | (503) 234-1221 |
| Ohsu Tinnitus Clinic 3181 Sw Sam Jackson Park Rd, Portland 97239 | (503) 494-7954 |
| Legacy Audiology & Vestibular 1040 Nw 22nd Ave # 460, Portland 97210 | (503) 413-8154 |
| Hearing & Speech Institute 1675 Sw Marlow Ave # 200, Portland 97225 | (503) 228-6479 |