Federal IDR outcomes: Radiology in Arizona
In 2025 Q1–Q4, the provider or facility offer prevailed in 92.6% of 119,766 determined Federal IDR dispute line items for radiology in Arizona. The median prevailing offer was 5.54x the QPA (25th–75th percentile 2.89x–7.60x; n = 119,603). The median time to a decision was 59 business days (n = 119,766).
Determined line items
119,766
2025 Q1–Q4 · 50 split decisions excluded
Provider win rate
92.6%
n = 119,766 · 2025 Q1–Q4
Median payment vs QPA
5.54x
middle half 2.89x–7.60x · n = 119,603 · 2025 Q1–Q4
Median days to decision
59
business days, from dispute initiation · n = 119,766 · 2025 Q1–Q4
Dollar amounts are not shown for specialty groups: the CMS QPA and Offers file, the only source of dollar figures, has no specialty field. See methodology.
By period
| Period | Line items | Win % | Median ×QPA | 25th–75th | Ratio n | Median days |
|---|---|---|---|---|---|---|
| 2025 Q1–Q4 | 119,766 | 92.6% | 5.54x | 2.89x–7.60x | 119,603 | 59 |
| 2024 Q1–Q4 | 74,281 | 91.2% | 3.58x | 2.88x–6.83x | 74,260 | 94 |
| 2023 Q1–Q4 | 17,815 | 70.9% | 2.69x | 1.28x–5.65x | 16,874 | 69 |
| 2023 Q1–2025 Q4 | 211,862 | 90.3% | 4.70x | 2.86x–7.14x | 210,737 | not pooled |
Line items = determined dispute line items (n). Win rate excludes split decisions and includes default decisions. Ratio n = line items reporting a payment-to-QPA ratio. Days are business days as reported by CMS (2023–2024: from IDR entity assignment; 2025: from initiation) and are never pooled.
Most disputed CPT codes
| CPT code | Line items | Win % | Median ×QPA | Ratio n | Median days |
|---|---|---|---|---|---|
| 71045 X-ray of chest, 1 view | 19,933 | 93.1% | 6.95x | 19,912 | 82 |
| 74177 CT scan of abdomen and pelvis with contrast | 13,193 | 92.1% | 5.22x | 13,189 | 54 |
| 70450 CT scan head or brain without contrast | 9,429 | 93.2% | 4.58x | 9,421 | 70 |
| 71046 X-ray of chest, 2 views | 5,144 | 93.8% | 6.08x | 5,142 | 72 |
| 74176 CT scan of abdomen and pelvis without contrast | 5,112 | 91.8% | 5.44x | 5,110 | 63 |
| 71275 CT scan of blood vessels of chest with contrast | 4,688 | 92.8% | 5.22x | 4,681 | 70 |
| 76705 Limited ultrasound scan of abdomen | 2,999 | 92.6% | 7.22x | 2,995 | 41 |
| 72125 CT scan of upper spine without contrast | 2,760 | 93.9% | 4.63x | 2,759 | 45 |
| 70498 CT scan of blood vessels of neck with contrast | 2,400 | 92.6% | 4.95x | 2,397 | 70 |
| 70496 CT scan of blood vessels of head with contrast | 2,223 | 92.4% | 4.04x | 2,219 | 70 |
| 93971 Ultrasound study of one arm or leg veins with compression and maneuvers | 2,003 | 93.2% | 9.69x | 1,999 | 32 |
| 74018 X-ray of abdomen, 1 view | 1,992 | 93.5% | 8.34x | 1,991 | 82 |
| 71260 CT scan of chest with contrast | 1,777 | 92.3% | 4.59x | 1,772 | 71 |
| 76856 Complete ultrasound scan of pelvis | 1,633 | 93.0% | 6.55x | 1,630 | 48 |
| 76815 Limited ultrasound of pregnant uterus | 1,542 | 93.3% | 6.34x | 1,533 | 59 |
| 76830 Ultrasound scan of uterus, ovaries, tubes, cervix and pelvic area through vagina | 1,411 | 93.1% | 6.74x | 1,408 | 53 |
| 71250 CT scan of chest without contrast | 1,367 | 93.6% | 4.77x | 1,366 | 63 |
| 70551 MRI scan of brain without contrast | 1,196 | 92.5% | 4.18x | 1,193 | 81 |
| 72131 CT scan of lower spine without contrast | 1,133 | 93.4% | 4.44x | 1,131 | 48 |
| 70486 CT scan of face without contrast | 1,033 | 93.5% | 4.79x | 1,032 | 71 |
2025 Q1–Q4 · rows with n ≥ 30 determined line items · sorted by n.
Related: all specialties in Arizona · Radiology in all states
FAQ
What is the Federal IDR provider win rate for radiology in Arizona?
In 2025 Q1–Q4, the provider or facility offer was selected in 92.6% of 119,766 determined dispute line items for radiology in Arizona. Split decisions are excluded from the denominator and default decisions are included. Withdrawn, settled and ineligible disputes are not in the CMS data.
How do Federal IDR payments compare with the QPA for radiology in Arizona?
In 2025 Q1–Q4, the median prevailing offer was 5.54x the qualifying payment amount (QPA), with a 25th to 75th percentile range of 2.89x to 7.60x (n = 119,603 line items). This uses the CMS field Prevailing Party Offer as % of QPA, where 1.00x equals the QPA.
How long do Federal IDR decisions take for radiology in Arizona?
In 2025 Q1–Q4, the median was 59 business days (n = 119,766 line items), using the CMS field Length of Time to Make Determination (from dispute initiation).