Requests for Additional information
While processing the application(s), National Government Services may determine additional information is needed.
All requested information should be submitted as soon as possible, but no later than 30 days from the initial development letter date or the application will be rejected.
- The contact person (identified on application) will either receive an email, fax or USPS mail that will include the instructions for needed actions, corrections and required documents. The email will display from the sender customerservice-donotreply@cms.hhs.gov.
- The application will be returned for corrections in PECOS. You must log into PECOS and access your application using the designated tracking ID and make the needed updates and/or corrections. Once the corrections have been made, resubmit the application back to the contractor, verify and manage the signature(s) as needed.
The contact person should be on the lookout for emails, routinely verify spam or junk email folders and add the customerservice-donotreply@cms.hhs.gov and NGS-PE-Communications@elevancehealth.com addresses to their safe senders list.
Reviewed 6/13/2024
Helpful Resources
Check Provider Enrollment Application Status
Log Into PECOS
Pay Application Fee
J6 Mailing Address:
National Government Services, Inc.
P.O. Box 6475
Indianapolis, IN 46206-6475
Interactive Voice Response:
877-908-9499
Contact Enrollment:
877-908-8476
Hours Available:
Monday–Friday
8:00 a.m.–4:00 p.m. CT
Form(s) you'll need:
Helpful Resources
Check Provider Enrollment Application Status
Log Into PECOS
Pay Application Fee
JK Mailing Address:
National Government Services, Inc.
P.O. Box 7149
Indianapolis, IN 46207-7149
Interactive Voice Response:
877-869-6504
Contact Enrollment:
888-379-3807
Hours Available:
Monday–Friday
8:00 a.m.–4:00 p.m. ET
Form(s) you'll need:
Helpful Resources
Check Provider Enrollment Application Status
Log Into PECOS
J6 Mailing Address:
National Government Services, Inc.
P.O. Box 6474
Indianapolis, IN 46206-6474
Contact Enrollment:
855-834-5596
Hours Available:
Monday–Friday
8:00 a.m.–4:00 p.m. CT
9:00 a.m.–5:00 p.m. ET
*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
Form(s) you'll need:
CMS-855A - Medicare Enrollment Application form for Institutional Providers
CMS-588 - Electronic Funds Transfer (EFT) Authorization Agreement form
Helpful Resources
Check Provider Enrollment Application Status
Log Into PECOS
JK Mailing Address:
National Government Services, Inc.
P.O. Box 7149
Indianapolis, IN 46206-7149
Contact Enrollment:
855-593-8047
Hours Available:
Monday–Friday
8:00 a.m.–4:00 p.m. ET
*Closed for training on the 2nd and 4th Friday of the month
12:00 p.m.-4:00 p.m. ET
Form(s) you'll need:
CMS-855A - Medicare Enrollment Application form for Institutional Providers
CMS-588 - Electronic Funds Transfer (EFT) Authorization Agreement form