Medicare Provider Contact Center Information and Important Telephone Numbers
Medicare Provider Contact Center Information
Customer Service Representatives—Medicare Part B Issues
8:00 a.m. – 4:00 p.m. Monday through Friday (excluding holiday closings).
Toll-Free Telephone Number: 1-888-760-6950
Speech and Hearing Impaired: 1-877-236-7851
Speech and Hearing Impaired: 1-877-236-7851
At any time that you are not satisfied with the level of service received from the Call Center representatives, you may request to speak with a supervisor. A supervisor will return your call within 48 hours.
Click here to view Medicare Provider Contact Center closings.
Interactive Voice Response (IVR)
For specific claim information: 6:00 a.m. – 6:00 p.m. Monday through Friday. For recorded information on current Medicare issues: 24 hours a day, 7 days a week:
Toll-Free Telephone Number: 1-866-419-9455
General Written Inquiries—Medicare Part B Issues
General Written Inquiries—Medicare Part B Issues
E-mail Address: AskCTMedicare@fcso.com
Fax Number: 1-904-361-0695
Fax Number: 1-904-361-0695
Here are a few simple guidelines for reaching us via email and fax:
• One policy question or beneficiary issue per email or fax
• No Protected Health Information (PHI) within or attached to email inquiries
Important Medicare Part B Telephone Numbers
Beneficiary Services
1-800-MEDICARE (toll-free)
1-866-359-3614 (hearing impaired)
1-800-MEDICARE (toll-free)
1-866-359-3614 (hearing impaired)
Provider Services
Medicare Part B
1-888-760-6950
Medicare Part B
1-888-760-6950
Appeals
1-866-535-6790, option 1
1-866-535-6790, option 1
Medicare Secondary Payer
1-866-535-6790, option 2
1-866-535-6790, option 2
Provider Enrollment
1-866-535-6790, option 4
1-866-535-6790, option 4
Interactive Voice Response
1-866-419-9455
1-866-419-9455
Electronic Data Interchange (EDI)
Enrollment
1-203-639-3160, option 1
Enrollment
1-203-639-3160, option 1
PC-ACEŽ PRO-32
1-203-639-3160, option 2
1-203-639-3160, option 2
Marketing and Reject Report Issues
1-203-639-3160, option 4
1-203-639-3160, option 4
Format, Testing, and Remittance Issues
1-203-639-3160, option 5
1-203-639-3160, option 5
Electronic Funds Transfer Information
1-203-639-3219
1-203-639-3219
Hospital Services
National Government Services
Medicare Part A
1-888-855-4356
National Government Services
Medicare Part A
1-888-855-4356
Durable Medical Equipment
NHIC
DME MAC Medicare Part B
1-866-419-9458
NHIC
DME MAC Medicare Part B
1-866-419-9458
Railroad Retirees
Palmetto GBA
Medicare Part B
1-877-288-7600
Palmetto GBA
Medicare Part B
1-877-288-7600
Quality of Care
Qualidign (Peer Review Organization)
1-800-553-7590
Qualidign (Peer Review Organization)
1-800-553-7590
Other helpful numbers
Social Security Administration
1-800-772-1213
1-800-772-1213
To Report Lost or Stolen Medicare Cards
1-800-772-1213
1-800-772-1213
Health Insurance Counseling Program
(CHOICES)/Area Agency on Aging
(CHOICES)/Area Agency on Aging
1-800-994-9422
Department of Social Services/ConnMap
1-800-842-1508
1-800-842-1508
ConnPACE/Assistance with Prescription Drugs
1-800-423-5026 or 1-860-832-9265 (Hartford area or from out of state)
1-800-423-5026 or 1-860-832-9265 (Hartford area or from out of state)

