localis

Type a CPT/HCPCS code, a place, a service in plain words, or a whole claim line like 90837 LCSW 94110.

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Q3 2026 ZIP-to-locality crosswalk release

Effective July 1 – September 30, 2026. Every page on this site that cites this release uses this data, and we never edit it in place.

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Release

Q3 2026

ZIP-to-locality crosswalk

Effective

Effective July 1 – September 30, 2026

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 zip-code-carrier-locality-file-updated-05-13-2026.zip. We ingested it on Jul 10, 2026.