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.

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2018

Due to the Bipartisan Budget Act of 2018, CMS sent updated anesthesia fee schedules effective for dates of service January 1, 2018 – December 31, 2018.

State Locality Par Non-Par Limiting Charge
Alaska Alaska $30.89 $29.35 $33.75
Arizona Arizona $21.86 $20.77 $23.88
Idaho Idaho $21.19 $20.13 $23.15
Montana Montana $23.04 $21.89 $25.17
North Dakota North Dakota $21.57 $20.49 $23.57
Oregon Oregon - Area 01 - Portland $22.26 $21.15 $24.32
Oregon Oregon - Area 99 - Rest of Oregon $21.78 $20.83 $23.95
South Dakota South Dakota $21.36 $20.92 $23.34
Utah Utah $22.16 $21.05 $24.21
Washington Washington - Area 02 - Seattle (King County) $23.07 $21.92 $25.20
Washington Washington - Area 99 - Rest of Washington $22.09 $20.99 $24.13
Wyoming Wyoming $22.03 $20.93 $24.07

 

2017

Effective January 1, 2017 for dates of service January 1, 2017 - 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
Oregon – 01 – Portland $22.01 $20.91 $24.05
Oregon – 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
Washington – 02 – Seattle/King County $22.61 $21.48 $24.70
Washington – 99 – Rest of Washington $21.66 $20.58 $23.66
Wyoming $22.11 $21.00 $24.16

 

2016

Effective January 1, 2016 for dates of service January 1, 2016 - 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

 

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Last Updated May 18, 2018