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CMS Finalizes Provider-Based Attestation Rule for Hospital Outpatient Departments
Off-campus hospital outpatient departments must obtain a unique NPI per physical location, update 855A enrollment records and file provider-based attestations, with a December 31, 2027 compliance deadline.
cms-provider-enrollmenthospital-outpatient-departmentsnational-provider-identifier855a-enrollmentprovider-attestationmedicare
Read the original firm alert โ Wednesday, November 11, 2026