Vendor
Office Ally
Clearinghouses & EDI networks. Free-tier clearinghouse for small practices; supports 3000+ payers.
https://www.officeally.comSupported transactions
Per-transaction requirements
Transaction 837P
Details →ISA05/07 = ZZ/ZZ · GS01 = HC · GS08 = 005010X222A1
1 required · 0 fixed values