Submit Enrollment Application

View Existing Medicare ID (PTAN) in PECOS and Effective/End Dates for Reassignment

Important: If you recently submitted an application to request a PTAN, please verify the approval letter was received prior to submission of claims.

Log into PECOS.

PECOS Login
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Select “My Associates”

My Associates

Scroll down under “Existing Associates” and click “View Enrollments” for selected record.

Under my associates you will see your records for Existing Associates. You will have access to click on the record that requires revalidating. To revalidate, click on View Enrollments.
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Scroll down under “Existing Enrollments” to appropriate record.

View “Medicare ID” for PTAN(s) Open “View Approved Enrollment Record.”

View PTAN(s)

  • ​​​​​In “Medicare ID” field
  • Open “View Medicare ID Report”
  • Open “View Approved Enrollment Record”
    • Sole proprietors or groups review the practice location section
    • Physician assistants review the physician assistants section
    • Individuals or groups review the reassignment section
  • Open "View/Manage Reassignments" then review the report

“View/Manage Reassignment” screen, scroll down under “Reassignment Report,” to view Medicare ID PTAN, effective and end date for each reassignment.

Image of the view/manage reassignment screen. Member ID, Effective Date, and Reassginment End Date are highlighted.

​​​​​​​Revised 10/22/2024

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