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The Medicare Advantage (MA) Ratebook also contains SSA and FIPS county codes.

Updates and changes.

According to CMS this file is no longer updated. Note that changes should be minimal in any case.  

Fiscal Year or Date

Source

Stata

SAS

CSV

Desc

2018

xls

dta

sas7bdat

csv

desc

2017 xls dta sas7bdat csv desc

2016

xls

dta

sas7bdat

csv

desc

2015

xls

dta

sas7bdat

csv

desc

2014

xls

dta

sas7bdat

csv

desc

2013

xls

dta

sas7bdat

csv

desc

2012

xls

dta

sas7bdat

csv

desc

2011

xls

dta

sas7bdat

csv

desc

CMS did not produce SSA to FIPS state and county crosswalk files between the 2003-08-19 and 2011.

2003-08-19

zip

dta

sas7bdat

csv

desc

In the 2003-08-19 Source crosswalk file, Angoon, Alaska with SSA county code 02030 has a fips county code of 02031. This FIPS county code does not seem to exist elsewhere, and it appears that the fips county value should be 02231, so this change has been made to the SAS and Stata files. Contact data@nber.org with questions, comments, or suggestions.

Last Update: March 6, 2018

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