Skip to main content
U.S. flag

An official website of the United States government

Return to Search

Analysis for FISS, CWF and NCH for Physician and Non-Physician Practitioner Specialty Codes

Section 1833 of the Social Security Act as amended by Sections 5501(a) and (b) of the Affordable Care Act (ACA) provides for incentive payments for physicians and non-physician practitioners with specific primary specialty designations. In order to determine if the physician or nonphysician practitioner is eligible for the incentive payment, the specialty code, National Provider Identifier (NPI) and names must be carried through the fiscal intermediary standard system (FISS), and the Common Working File (CWF) to the National Claims History (NCH).

Download the Guidance Document

Issued by: Centers for Medicare & Medicaid Services (CMS)

Issue Date: January 04, 2010

DISCLAIMER: The contents of this database lack the force and effect of law, except as authorized by law (including Medicare Advantage Rate Announcements and Advance Notices) or as specifically incorporated into a contract. The Department may not cite, use, or rely on any guidance that is not posted on the guidance repository, except to establish historical facts.