Validate a hospital MRF JSON file against the CMS-provided schema using the CMSgov price-transparency-guide-validator tool

Steps

1. Clone or download the CMSgov/price-transparency-guide-validator repository and follow its README to install dependencies.
2. Point the validator at your MRF JSON file using the command-line interface, specifying the target schema version that matches your file's schema_version field.
3. Review the validator output for errors distinguishing required-field violations (hard failures) from optional-field warnings.
4. Fix any reported errors — common issues include missing attestation fields, incorrect data types for numeric amount fields, and NPI format mismatches.
5. Re-run the validator until the output reports zero errors, then retain the passing run log as compliance evidence.
6. As an alternative, use the CMS web-based validation tool at the CMS Resources page to upload the file and receive immediate feedback without a local install.