EDI Enrollment

National Government Services Contractor Codes

The Contractor Code is a five-digit numeric code that indicates your MAC, also known as the Carrier Code, or Payer ID.

Part B Professional:

  • Connecticut 13102
  • Illinois 06102
  • Maine 14112
  • Massachusetts 14212
  • Minnesota 06202
  • New Hampshire 14312
  • New York (Upstate) 13282
  • New York (Downstate) 13202
  • New York (Queens) 13292
  • Rhode Island 14412
  • Vermont 14512
  • Wisconsin 06302

Part A Institutional:

  • California 06014
  • Connecticut 13101
  • Illinois 06101
  • Maine 14011
  • Massachusetts 14211
  • Minnesota 06201
  • New Hampshire 14013
  • New York 13201
  • Rhode Island 14411
  • Vermont 14013
  • Wisconsin (A/FQHC) 06001

HH+H

  • Alaska, Arizona, California, Hawaii, Idaho, Nevada, Oregon, Washington, Guam, Northern Marianna Islands, American Samoa 06014
  • Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont 14011
  • Michigan, Minnesota, New Jersey, New York, Puerto Rico, US Virgin Island, Wisconsin 06001

Reviewed 6/6/2024

Helpful Resources

Approved Entities
Network Service Vendors
EDI Application Status Search Tool
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 Thursday 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
EDI Application Status Search Tool
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 Thursday 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