Helpful Resources
Approved Entities
Network Service Vendors
Check EDI Application Status
NPI/PTAN Crosswalk
Contact the EDI Help Desk:
888-379-9132
Available by phone or email Monday–Friday*
8:00 a.m.–5:00 p.m. ET
8:00 a.m.–4:00 p.m. CT
* Closed for training on the 2nd and 4th Friday of the month.
12:00 p.m.–4:00 p.m. ET
11:00 a.m.–3:00 p.m. CT
ASCA Mailing Address:
National Government Services, Inc.
Attn: ASCA
P.O. Box 7022 | Indianapolis, IN 46207-7022
Form(s) you'll need:
ASCA Waiver Request Form
EDI Email Inquiry Form
Helpful Resources
Approved Entities
Network Service Vendors
Check EDI Application Status
NPI/PTAN Crosswalk
Contact the EDI Help Desk:
877-273-4334
Available by phone or email Monday–Friday*
8:00 a.m.–5:00 p.m. ET
8:00 a.m.–4:00 p.m. CT
* Closed for training on the 2nd and 4th Friday of the month.
12:00 p.m.–4:00 p.m. ET
11:00 a.m.–3:00 p.m. CT
ASCA Mailing Address:
National Government Services, Inc.
Attn: ASCA
P.O. Box 7022 | Indianapolis, IN 46207-7022
Form(s) you'll need:
ASCA Waiver Request Form
EDI Email Inquiry Form