Submit Enrollment Application

Individual Medicare Enrollment Sole Owner of a Corporation via Tax ID

Download CMS-855I:

  • Complete sections 1, 2, 3, 4, 6, 8, 12, 13 and 15.

Notes:

  • Corporation structures: examples are PA, PC, LLC, PLLC, Inc., etc.
  • Be sure to complete sections 1, 2 and 3 – Enter individual Information (Type 1 NPI).
  • Be sure to complete sections 4, 4A, 4A1, 4A2, 4B, 4C, 4D, 4E, 6 and 8 – Enter Organization Information (Type 2 NPI).
  • If reassigning benefits to another group, complete sections 4F and 15C.
  • Be sure to include supporting documents such as IRS CP 575 or 147C that displays the legal business name and TIN/EIN.

Download and complete CMS-588 EFT Authorization Agreement.

Related Content

Revised 9/25/2023

Helpful Resources

Check Provider Enrollment Application Status
Log Into PECOS

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:

Enrollment Forms

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:

Enrollment Forms

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
Pay Application Fee

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