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Medicare Specialty Codes/Taxonomy Crosswalk

Created:   | Updated:  
Prepared by:CMS/ Center for Program Integrity/Medicare Program Integrity Group/Division of Policy & Regulatory Development

This crosswalk links the types of providers and suppliers who are eligible to apply for enrollment in the Medicare program with the appropriate Healthcare Provider Taxonomy Codes. This crosswalk includes the Medicare Specialty Codes for those provider/supplier types who have Medicare Specialty Codes. The Healthcare Provider Taxonomy Code Set is available from the Washington Publishing Company ( and is maintained by the National Uniform Claim Committee ( The code set is updated twice a year, with the updates being effective April 1 and October 1 of each year. This document reflects Healthcare Provider Taxonomy Codes effective for use on October 1, 2013.