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Anesthesia Conversion Factors

The anesthesia conversion factors for each calendar year are listed by payment locality and are effective for the date the service was provided. The participating physician anesthesia conversion factor is listed first, the non-participating physician anesthesia conversion factor is second, and the limiting charge is listed in the third column.

The non-participating physician conversion factor is computed at 95 percent of the participating physician conversion factor. The limitation in the statute requires that Qualified Nonphysician Anesthetist services not exceed the conversion factor for physicians' anesthesia services.

Find anesthesia conversion factors on CMS Anesthesiologists Center webpage.  This link takes you to an external website.

 

2017

CMS released the following anesthesia conversion factors that are effective January 1, 2017 for dates of service January 1, 2017 through December 31, 2017.

Locality Par Non-Par Limiting Charge
Alaska $30.69 $29.16 $33.53
Arizona $21.80 $20.71 $23.82
Idaho $21.04 $19.99 $22.99
Montana $22.63 $21.50 $24.72
North Dakota $21.43 $20.36 $23.41
01 - Portland $22.01 $20.91 $24.05
99 - Rest of Oregon $21.59 $20.51 $23.59
South Dakota $21.22 $20.16 $23.18
Utah $22.02 $20.92 $24.06
02 - Seattle (King County) $22.61 $21.48 $24.70
99 - Rest of Washington $21.66 $20.58 $23.66
Wyoming $22.11 $21.00 $24.16

2016

CMS released the following anesthesia conversion factors that are effective January 1, 2016 for dates of service January 1, 2016 through December 31, 2016.

State Par Non-Par Limiting Charge
Alaska $30.58 $29.05 $33.41
Arizona $21.83 $20.74 $23.85
Idaho $20.98 $19.93 $22.92
Montana $22.30 $21.19 $24.36
North Dakota $21.39 $20.32 $23.37
Oregon – 01 – Portland $21.85 $20.76 $23.87
Oregon – 99 – Rest of Oregon $21.48 $20.41 $23.47
South Dakota $21.18 $20.12 $23.14
Utah $21.96 $20.86 $23.99
Washington – 02 – Seattle/King County $22.26 $21.15 $24.32
Washington – 99 – Rest of Washington $21.33 $20.26 $23.30
Wyoming $22.29 $21.18 $24.35

2015

CMS released the following anesthesia conversion factors that are effective July 1, 2015 for dates of service July 1, 2015 through December 31, 2015.

State Par Non-Par Limiting Charge
Alaska $31.08 $29.53 $33.95
Arizona $22.37 $21.25 $24.44
Idaho $21.32 $20.25 $23.29
Montana $23.04 $21.89 $25.17
North Dakota $21.75 $20.66 $23.76
Oregon – Locality 01* $22.30 $21.19 $24.36
Oregon – Locality 99* $21.94 $20.84 $23.97
South Dakota $21.46 $20.39 $23.45
Utah $22.67 $21.54 $24.77
Washington – Locality 02** $22.59 $21.46 $24.68
Washington – Locality 99** $21.65 $20.57 $23.65
Wyoming $23.03 $21.88 $25.16

 

CMS released the following anesthesia conversion factors that are effective January 1, 2015 for dates of service January 1, 2015 through June 30, 2015.

State Par Non-Par Limiting Charge
Alaska $30.92 $29.37 $33.78
Arizona $22.26 $21.15 $24.32
Idaho $21.21 $20.15 $23.17
Montana $22.93 $21.78 $25.05
North Dakota $21.64 $20.56 $23.64
Oregon – Locality 01* $22.19 $21.08 $24.24
Oregon – Locality 99* $21.83 $20.74 $23.85
South Dakota $21.35 $20.28 $23.32
Utah $22.56 $21.43 $24.65
Washington – Locality 02** $22.48 $21.36 $24.56
Washington – Locality 99** $21.54 $20.46 $23.53
Wyoming $22.92 $21.77 $25.04

 

Last Updated Mar 10, 2017