localis
API key

Describe a service in plain words, or type a CPT/HCPCS code.

Q4 2023 ZIP-to-locality crosswalk release

Effective October 1 – December 31, 2023. It is the immutable dataset vintage behind any site page that cites this release.

Overview Copy link

Release

Q4 2023

ZIP-to-locality crosswalk

Effective

Effective October 1 – December 31, 2023

Source files

1

member files recorded

Revision

v1

only published version we ingested

The quarterly crosswalk mapping every 5-digit ZIP code to the Medicare payment locality whose GPCIs price claims from that ZIP.

The publisher released this dataset as 2023-end-year-zip-code-file.zip. We ingested it on Aug 8, 2026.