| Business | Phone |
| Perioperative Svc 111 Continental Dr # 412, Newark 19713 | (302) 733-0705 |
| Revenue Assurance 280 E Main St # 5, Newark 19711 | (302) 731-1589 |
| Delaware Claims Svc 33 Omega Dr # J, Newark 19713 | (302) 454-9881 |
| Delaware Medical Management 71 Omega Dr # D, Newark 19713 | (302) 283-3300 |