| Business | Phone |
| C & L Medical Billing Po Box 101654, Pittsburgh 15237 | (412) 487-0271 |
| Ideal Office Management Svc 2248 Lehigh St, Pittsburgh 15218 | (412) 371-1570 |
| Kell Group 56 S 21st St, Pittsburgh 15203 | (412) 381-5160 |
| Medical Service Assoc 3285 Babcock Blvd, Pittsburgh 15237 | (412) 366-7607 |
| Pinnacle Medical Group 209 Sandusky St, Pittsburgh 15212 | (412) 321-1760 |
| Psychiatric Billing & Typing 401 Shady Ave, Pittsburgh 15206 | (412) 422-8808 |