| Business | Phone |
| Meditech Billing & Consltng 700 Koehler Ave # A, Ronkonkoma 11779 | (631) 580-5020 |
| Coastal Healthcare Billing 2150 Smithtown Ave, Ronkonkoma 11779 | (631) 285-7933 |
| Financial Medical Management 3505 Veterans Memorial Hwy # I, Ronkonkoma 11779 | (631) 737-4433 |
| Psychbilling 316 Port Ave, Ronkonkoma 11779 | (631) 467-2444 |