localis
Calculator

Describe a service in plain words, or type a CPT/HCPCS code.

Medicare Physician Fee Schedule · Q3 2026 release

CPT 74183 in Seattle, WA 02402-02

Abdominal mri with and without contrast in ZIPs including 98101, 98109, and 98122

74183 2026 C · Seattle, WA flag02402-02 A Active
Non-facility Facility
Allowed amount
$397.39
in a doctor’s own office or clinic

118.3% of the $336.01 national baseline

Medicare payment
$317.91
Patient / secondary
$79.48
Expected total to provider
$397.39

Patient / secondary and expected total to provider assume the Part B annual deductible is already met. If it isn't, the patient owes more than the amount shown here.

Locality-adjusted Physician Fee Schedule pricing

How much does Medicare allow for CPT 74183 in Seattle, WA? Copy link

The Medicare allowed amount is $397.39 in the office (non-facility) and facility settings, under the Q3 2026 Physician Fee Schedule. That is 18.3% above the national baseline. This is the fee schedule amount before sequestration and before any deductible or coinsurance is applied — not necessarily what a specific claim pays.

What Medicare locality is Seattle, WA in? Copy link

CMS payment locality Seattle (King County) (02402-02). Every location in it is priced identically.

Why Seattle, WA differs from the national amount Copy link

Seattle, WA (this locality)
$397.39
National PFS baseline (GPCI 1.000)
$336.01

The national figure is a baseline, not an amount any provider is paid. This locality's geographic practice cost indices scale each RVU component before the conversion factor is applied, which puts Seattle, WA at 18.3% above the national baseline.

Work GPCI
1.050
Practice expense GPCI
1.227
Malpractice GPCI
0.817
2026 conversion factor
$33.4009

Formula and inputs Copy link

The office (non-facility) amount for 74183 in Seattle, WA: each component's RVU times its GPCI, summed, then multiplied by the conversion factor.

RVU and GPCI components of the Seattle, WA allowed amount for 74183
Component RVU × GPCI = Adjusted RVU
Work 2.15 1.050 2.2575
Practice expense 7.75 1.227 9.5093
Malpractice 0.16 0.817 0.1307
Sum of adjusted RVUs 11.8975
× $33.4009 2026 conversion factor $397.39

Participating, non-participating and limiting charge Copy link

All figures are for the office (non-facility) setting in Seattle, WA. The allowed amount is not the program payment — the rows below separate them. See how the limiting charge and sequestration are derived.

Participation and payment-split amounts for 74183 in Seattle, WA
Participating allowed amount The fee schedule amount a participating provider accepts as payment in full. $397.39
Non-participating allowed amount 95% of the participating amount. $377.52
Limiting charge Ceiling a non-participating provider may bill the patient on an unassigned claim — 115% of the non-participating amount. $434.15
Medicare program payment 80% of the allowed amount, once the annual Part B deductible is met. $317.91
Beneficiary coinsurance The remaining 20%. $79.48
Sequestration adjustment Reduces Medicare's share only — never the allowed amount, and never the patient's share. $6.36
Medicare pays after sequestration Program payment net of the sequestration reduction. $311.55

Contracted rate: % of Medicare in Seattle, WA Copy link

Commercial contracts are usually written as a percentage of the Medicare fee schedule. Which Medicare amount they mean is the part that gets misread: a contract benchmarked to the fee schedule prices off this locality's allowed amount — $397.39 in the office (non-facility) setting — not the $336.01 national baseline.

Opens the calculator already set to Seattle, WA and the office (non-facility) setting. It also compares what a payer actually paid against the expected amount. See how to find your contract's actual percentage.

ZIP codes this Seattle, WA rate covers Copy link

The CMS ZIP-to-locality crosswalk maps 130 ZIP codes to this payment locality. 74183 prices identically in every one of them. 6 of them span more than one locality and need ZIP+4 for an exact match.

98001 98002 98003 98004 98005 98006 98007 98008 98009 98010 98011 98013 98014 98015 98019 98022 98023 98024 98025 98027 98028 98029 98030 98031 98032 98033 98034 98035 98038 98039 98040 98041 98042 98045 98047 98050 98051 98052 98053 98054 98055 98056 98057 98058 98059 98060 98062 98063 98064 98065 98070 98071 98072 98073 98074 98075 98077 98083 98089 98092 98093 98101 98102 98103 98104 98105 98106 98107 98108 98109 98111 98112 98113 98114 98115 98116 98117 98118 98119 98121 98122 98124 98125 98126 98127 98129 98130 98131 98132 98133 98134 98136 98138 98139 98140 98141 98144 98145 98146 98148

30 more ZIP codes map to this locality. The Seattle, WA locality page lists the full set.

Resolves the ZIP to its payment locality, so you can confirm whether this amount applies.

74183 in nearby payment localities Copy link

Payment localities in the same region as Seattle, WA, nearest first. Each amount is that locality's own GPCI-adjusted office (non-facility) figure for 74183. Proximity doesn't imply similar pricing — neighbouring localities often differ.

74183 allowed amount in payment localities near Seattle, WA
Metro Allowed amount vs. Seattle, WA
Portland, OR $364.53 -8.3%
Boise, ID $312.49 -21.4%
Sacramento, CA $378.31 -4.8%
San Francisco, CA $445.89 +12.2%
Salt Lake City, UT $319.94 -19.5%

Every payment locality nationwide is on the CPT 74183 rate map.

Other codes priced in Seattle, WA Copy link

Office (non-facility) allowed amounts in this same payment locality, Q3 2026.

Other curated codes and their allowed amounts in Seattle, WA
Code Service Seattle, WA vs. national
72148 Lumbar Spine MRI Without Contrast $225.36 +17.5%
70553 Brain MRI With and Without Contrast $373.55 +17.9%
70551 Brain MRI Without Contrast $229.87 +17.6%
73721 Lower-Extremity Joint MRI Without Contrast $241.78 +18.3%
72141 Cervical Spine MRI Without Contrast $224.13 +17.5%
73221 Upper-Extremity Joint MRI Without Contrast $242.60 +18.3%
72146 MRI $223.72 +17.5%
72197 Pelvic MRI With and Without Contrast $395.34 +18.2%
77049 MRI $401.36 +18.2%
73222 MRI $372.75 +19.2%
70552 MRI $317.98 +18.3%
73722 MRI $375.62 +19.3%

Common questions Copy link

Which ZIP codes does the Seattle, WA rate for 74183 cover?
The CMS ZIP-to-locality crosswalk maps 130 ZIP codes to this payment locality, and every one of them prices 74183 identically. Examples include 98001, 98002, 98003, 98004, 98005, 98006. 6 of them span more than one payment locality, so those need ZIP+4 for an exact match.
Why is the 74183 rate in Seattle, WA different from the national amount?
The national figure is a GPCI 1.000 baseline, not an amount any provider is paid. This locality's geographic practice cost indices — work 1.050, practice expense 1.227, malpractice 0.817 — scale each RVU component before the conversion factor is applied, which is why Seattle, WA allows more than the $336.01 baseline.
What is the non-participating amount and limiting charge for 74183 in Seattle, WA?
A non-participating provider is paid $377.52 — 95% of the $397.39 participating fee schedule amount. On an unassigned claim the limiting charge caps what the patient can be billed at $434.15, which is 115% of the non-participating amount.
How much of the Seattle, WA 74183 rate does Medicare actually pay?
Medicare pays 80% of the allowed amount ($317.91) once the annual Part B deductible is met, and the beneficiary owes 20% ($79.48). Sequestration reduces Medicare's share by about 2% ($6.36), leaving $311.55. Sequestration never changes the allowed amount itself, which is why it is shown separately here.

Source & method Copy link

Computed from the CMS Medicare Physician Fee Schedule Q3 2026 release : this code's RVUs from the relative value file, multiplied by payment locality 02402-02's GPCIs, then by the 2026 conversion factor of $33.4009. ZIP coverage from the CMS ZIP-to-locality crosswalk, Q3 2026 release . Releases are immutable: an amount retrieved for a past quarter always reflects that PFS release. Coverage and coding correctness are outside this calculation.

Working a claim with an earlier date of service? The calculator prices 74183 in Seattle, WA against the release that governed that date. Past releases need a free account; today's rate does not.

Did this answer your question about CPT 74183 in Seattle, WA?

We're building this out in the open. Tell us what you were actually trying to work out and we'll either answer you directly or build the page that does.

Did this page answer your question?