Authorization and Accreditation

Eligible Part B Physicians and Nonphysicians to Enroll as Ordering and Referring Only

Physician and nonphysician practitioners who can enroll in Medicare solely to order or refer:

  • Doctors of medicine or osteopathy
  • Doctors of dental surgery or dental medicine
  • Doctors of podiatry 
  • Doctors of optometry 
  • Physician assistants 
  • Certified clinical nurse specialists 
  • Nurse practitioners 
  • Clinical psychologists
  • Certified nurse midwives 
  • Clinical social workers 
  • Marriage and family therapist 
  • Mental health counselor 

Reviewed 10/3/2024

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