Contact Information

Provider Enrollment

The National Government Services Provider Customer Care Department has direct telephone lines available for provider enrollment inquiries.

Who should I call for technical issues regarding PECOS, EUS Helpdesk or MAC?

The Medicare fee-for-service contractor serving your State or jurisdiction will answer your enrollment questions and process your enrollment application.

Toll-Free Provider Enrollment Numbers

Please use the following toll-free provider enrollment number for your region:

Please Note: Provider enrollment representatives will only be able to assist those listed as the contact person on the application, the provider themselves, and/or the authorized/delegated official for the practice.

State/Region Toll-Free Number Hours of Service
JK: CT, MA, ME, NH, NY, RI, VT 888-379-3807 Monday–Friday:
8:00 a.m.–4:00 p.m.* ET

Closed for training on the 2nd and 4th Friday of the month:
12:00–4:00 p.m. ET
J6: IL, MN, WI 877-908-8476 Monday–Friday:
8:00 a.m.–4:00 p.m.* CT
* Due to heavy volume, the best time to allow us to assist you are 8:00-9:00 a.m. CT

Closed for training on the 2nd and 4th Friday of the month:
11:00 a.m.‑3:00 p.m. CT

 

When to Contact the Provider Enrollment Lines

Contact the Provider Enrollment line regarding the following:

  • Enrollment status
  • Assistance with the CMS-855 form completion, and
  • Other enrollment-related questions

Questions pertaining to issues other than the above should be directed to the Provider Contact Center.

Please have the following information ready when you call so we can help answer your questions as quickly as possible:

  • Case number (if assigned)
  • PTAN
  • NPI
  • Section of the application you are questioning (if applicable)

Centers for Medicare & Medicaid Services Offices

CMS has central offices located in Baltimore, MD and Washington, D.C., and ten CMS Regional Offices located throughout the country.

Revised 3/26/2024

Provider Enrollment

The National Government Services Provider Customer Care Department has direct telephone lines available for provider enrollment inquiries.

Who should I call for technical issues regarding PECOS, EUS Helpdesk or MAC?

The Medicare fee-for-service contractor serving your State or jurisdiction will answer your enrollment questions and process your enrollment application.

Toll-Free Provider Enrollment Numbers

National Government Services offers dedicated telephone lines for provider enrollment inquiries. Please use the toll-free provider enrollment number designated for your region:

Jurisdiction 6

J6 States Phone Number Hours of Service
Part A IL, MN, WI 855-834-5596 Monday–Friday:
8:00 a.m.–4:00 p.m. CT

Closed for training on the 2nd and 4th Friday of the month:
11:00 a.m.‑3:00 p.m. CT
HHH AK, American Samoa, AZ, CA, Guam, HI, ID, MI, MN, NJ, NV, NY, Northern Mariana Islands, OR, Puerto Rico, US Virgin Islands, WA, WI 855-834-5596 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:
11:00 a.m.‑3:00 p.m. CT
12:00 p.m.‑4:00 p.m. ET
FQHC AL, AK, AR, American Samoa, CA, CO, DC, DE, FL, GA, Guam, HI, ID, IL, IN, IA, KS, KY, LA, MD, MI, MN, MS, MO, NE, NV, NJ, NM, NC, Northern Mariana Islands, OH, OK, OR, PA, Puerto Rico, RI, SC, TN, TX, VA, WA, WV, WI 855-834-5596 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:
11:00 a.m.‑3:00 p.m. CT
12:00 p.m.‑4:00 p.m. ET


Jurisdiction K

JK States Phone Number Hours of Service
Part A and FQHC CT, MA, ME, NH, NY, RI, VT 855-593-8047 Monday–Friday:
8:00 a.m.–4:00 p.m. ET

Closed for training on the 2nd and 4th Friday of the month:
12:00-4:00 p.m. ET
HHH CT, MA, ME, NH, RI, VT 855-593-8047 Monday–Friday:
8:00 a.m.–4:00 p.m. ET

Closed for training on the 2nd and 4th Friday of the month:
12:00-4:00 p.m. ET

When to Contact the Provider Enrollment Lines

Contact the Provider Enrollment line regarding the following:

  • Enrollment status
  • Assistance with the CMS-855 form completion, and
  • Other enrollment-related questions

Questions pertaining to issues other than the above should be directed to the:

Please have the following information ready when you call so we can help answer your questions as quickly as possible:

  • Case number (if assigned)
  • PTAN
  • NPI
  • Section of the application you are questioning (if applicable)

Centers for Medicare & Medicaid Services Offices

CMS has central offices located in Baltimore, MD and Washington, D.C., and ten CMS Regional Offices located throughout the country.

Revised 3/25/2024