US · guidance
CMS Pub. 100-04, ch. 1, § 30.3.12.1.2
Annual Medicare Physician Fee Schedule File Information
The CMS transmits the annual Medicare Physician Fee Schedule (MPFS) file
electronically for carriers/MACs to download each year around late-October. The annual
MPFS files (including anesthesia) are effective January 1st. Carriers/MACs must
implement these files each January, unless otherwise directed by CMS.
NOTE: There will be an annual recurring change request for the implementation of the
yearly Medicare Physician Fee Schedule Files.
The CMS will advise all contractors, via email notification, when annual MPFS files are
available for download from the mainframe. Carriers/MACs can retrieve the new files
and begin the process of testing and loading the new fees into the system.
Carriers/MACs must place the new fees, including the anesthesia conversion factor(s), on
their Web site after the MPFS final rule is placed on display. (The CMS will send
notification of when the MPFS final rule is put on display via email.)
In addition, there may be last minute corrections, therefore you may have to retrieve one
or more MPFS corrected files. Notification of the availability of any correction files,
including the file names, will be made via an email to Carriers and MACs.
History
(Rev. 2799, Issued: 10-25-13, Effective: 01-01-14, Implementation: 01-06-14)
Provenance
- Source
- cms.gov
- Retrieved
- 2026-08-25
- Edition
- iom-2026-08-25
- Content hash
5cc42e3d5e957a655ed355a145caa0e2db2f50e94a26c04e07f1ca8bb6e1ad5b
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