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This variable is contained in the following files: Carrier (Fee-for-Service), Durable Medical Equipment (Fee-for-Service)
Short SAS Name
CARR_NUM
SAS Name
CARR_NUM

The identification number assigned by CMS to a carrier authorized to process claims from a physician or supplier.

Effective July 2006, the Medicare Administrative Contractors (MACs) began replacing the existing carriers and started processing physician or supplier claim records for states assigned to its jurisdiction.

Comments

Prior to Version H this field was named: FICARR_IDENT_NUM. 

Source: NCH