February 18, 2025
Important Reminder: Part A Prior Authorization Requests
CGS is receiving prior authorization requests (PARs) through the Part A Provider Contact Center fax number instead of through the appropriate submission methods.
To ensure CGS processes your request timely, please ONLY submit prior authorization requests using the following methods:
- myCGS portal (preferred method)
- Electronic Submission of Medical Documentation (esMD) | CMS
- Fax for Kentucky: 1.615.782.4486
- Fax for Ohio: 1.615.782.4498
- Mailing address:
CGS
PO Box 20203
Nashville, TN 37202
PARs submitted on the inappropriate form may receive a rejection. The Fax Request forms can be accessed on the CGS Medicare website and include the appropriate fax number with drop downs to assist in appropriate submission: HOPD Request forms.
Additional checklists and information are available for providers on the CGS Medicare website: Prior Authorization.