Federal IDR outcomes by provider group
The provider and facility groups with the most determined Federal IDR disputes in the CMS public use files, 2023 Q1–2025 Q4, with how often their offer was selected and how the selected offer compared with the QPA. Use the explorer to see the top groups for a specialty, state, payer, CPT code or year.
Top 100 groups, 2023 Q1–2025 Q4
| # | Provider group | Disputes | Win % | Award ×QPA | Total awarded (≈) |
|---|---|---|---|---|---|
| 1 | Singleton Associates, P.A. | 228,191 | 93.7% | 6.70x | ≈ $248.6M |
| 2 | Houston Radiology Associated | 87,115 | 95.6% | 4.66x | ≈ $37.3M |
| 3 | OrthoMed Staffing, LLC | 85,860 | 86.5% | 8.49x | ≈ $433.9M |
| 4 | Sonoran Radiology, LTD | 68,700 | 89.3% | 4.65x | ≈ $63.0M |
| 5 | SOUTHEASTERN EMERGENCY PHYSICIANS LLC | 56,146 | 92.8% | 2.97x | ≈ $40.0M |
| 6 | Remote Neuromonitoring Physicians PC | 45,962 | 88.7% | 12.22x | ≈ $112.4M |
| 7 | Imaging Associates of Indiana, PC | 37,459 | 89.4% | 5.28x | ≈ $29.3M |
| 8 | FREMONT EMERGENCY SERVICES SCHERR LTD | 36,498 | 93.9% | 2.76x | ≈ $28.7M |
| 9 | Mori, Bean, and Brooks, Inc. | 34,536 | 98.1% | 3.70x | ≈ $33.1M |
| 10 | EMERGENCY COVERAGE CORPORATION | 30,340 | 92.0% | 2.20x | ≈ $10.6M |
| 11 | Physician Oversight LLC | 30,220 | 84.0% | 13.20x | ≈ $71.9M |
| 12 | U.S. Anesthesia Partners of Texas, P.A. | 28,607 | 84.6% | 3.14x | ≈ $67.0M |
| 13 | PRECISION EMERGENCY PHYSICIANS | 26,053 | 92.0% | 6.56x | ≈ $70.2M |
| 14 | ACS PRIMARY CARE PHYSICIANS - SOUTHEAST PC | 25,252 | 90.3% | 2.06x | ≈ $18.4M |
| 15 | NPPA SERVICES | 24,508 | 91.6% | 65.15x | ≈ $201.1M |
| 16 | SUMMIT ANESTHESIA PARTNERS | 21,751 | 87.6% | 18.55x | ≈ $152.6M |
| 17 | PARAGON CONTRACTING SERVICES LLC | 21,511 | 91.7% | 2.42x | ≈ $19.9M |
| 18 | INPHYNET SOUTH BROWARD LLC | 19,864 | 91.7% | 1.73x | ≈ $14.1M |
| 19 | Empire State Radiology, P.C. | 19,328 | 88.0% | 5.24x | ≈ $25.4M |
| 20 | EMERGENCY PROFESSIONALS OF INDIANA PC | 17,828 | 92.1% | 2.64x | ≈ $14.9M |
| 21 | LONGHORN EMERGENCY MEDICAL ASSOCIATES PA | 17,022 | 95.3% | 4.07x | ≈ $13.6M |
| 22 | COWETA EMERGENCY GROUP LLC | 16,605 | 85.4% | 3.19x | ≈ $11.7M |
| 23 | EMERGENCY PHYSICIANS SOUTHWEST PC | 15,795 | 95.2% | 2.35x | ≈ $14.8M |
| 24 | EVOKES, LLC | 15,777 | 80.5% | 71.11x | ≈ $116.7M |
| 25 | U.S. Anesthesia Partners of Florida, Inc. | 15,257 | 87.9% | 2.23x | ≈ $34.3M |
| 26 | TotalCare ER | 14,991 | 80.2% | 20.86x | ≈ $64.6M |
| 27 | SPRINGFIELD SURGERY CENTER | 14,941 | 83.7% | 33.48x | — |
| 28 | SOUTHEASTERN EMERGENCY PHYS OF MEMPHIS LLC | 14,582 | 92.7% | 3.69x | ≈ $8.3M |
| 29 | Sentient Physicians PC | 13,509 | 88.0% | 12.39x | ≈ $32.7M |
| 30 | EMERGENCY COVERAGE LLC | 12,395 | 91.4% | 2.18x | ≈ $12.2M |
| 31 | Lake Spring Emergency Group, LLC | 11,686 | 83.6% | 4.02x | ≈ $7.3M |
| 32 | TEXAS MEDICINE RESOURCES LLP | 11,034 | 96.5% | 2.37x | ≈ $12.7M |
| 33 | ACS PRIMARY CARE PHYSICIANS - SOUTHWEST PA | 10,858 | 93.8% | 3.02x | ≈ $10.2M |
| 34 | EMERGENCY PROFESSIONAL SERVICES INC | 10,675 | 91.1% | 2.20x | ≈ $7.1M |
| 35 | EMERGENCY GROUP OF ARIZONA PC | 10,533 | 91.2% | 2.02x | ≈ $7.9M |
| 36 | Anesthesia Medical Group, P.C. | 10,501 | 91.7% | 2.41x | ≈ $21.9M |
| 37 | WALKER LAKE EMERGENCY GROUP PC | 9,882 | 85.2% | 3.19x | ≈ $6.7M |
| 38 | EMERGENCY PHYS ASSOCIATES OF NORTH JERSEY PC | 9,861 | 90.2% | 2.11x | ≈ $6.1M |
| 39 | EMERGENCY PHYSICIAN SERVICES OF NEW YORK PC | 9,854 | 95.1% | 2.41x | ≈ $7.8M |
| 40 | ANESTHESIA ASSOCIATES OF CINCINNATI INC | 9,653 | 91.6% | 2.32x | ≈ $12.0M |
| 41 | Roper Radiologists, P.A. | 9,496 | 79.1% | 19.32x | ≈ $16.2M |
| 42 | Providence Anesthesiology Associates, PA | 9,464 | 91.6% | 1.70x | ≈ $8.4M |
| 43 | WILDWOOD EMERGENCY GROUP LLC | 9,163 | 83.1% | 4.02x | ≈ $6.2M |
| 44 | Vituity | 9,159 | 86.0% | 2.20x | ≈ $32.1M |
| 45 | GULF-TO-BAY ANESTHESIOLOGY ASSOCIATES LLC | 8,714 | 91.7% | 2.27x | ≈ $12.2M |
| 46 | INPHYNET CONTRACTING SERVICES LLC | 8,581 | 92.0% | 1.70x | ≈ $4.7M |
| 47 | Lake Oliver Emergency Group, LLC | 8,322 | 87.4% | 2.77x | ≈ $8.6M |
| 48 | EMERGENCY MEDICINE SPECIALISTS, INC. | 8,178 | 79.5% | 3.95x | ≈ $11.0M |
| 49 | TotalCare | 7,936 | 82.2% | 24.00x | ≈ $39.0M |
| 50 | Specialists in Medical Imaging, S.C. | 7,879 | 93.1% | 5.64x | ≈ $4.9M |
| 51 | ONE CARE MONITORING, LLC | 7,835 | 84.5% | 45.84x | ≈ $55.9M |
| 52 | SURGICAL SUPPORT ALLIANCE, PLLC | 7,834 | 89.6% | 29.00x | ≈ $68.4M |
| 53 | SOUTHEASTERN EMERGENCY SERVICE | 7,780 | 89.4% | 3.82x | ≈ $6.5M |
| 54 | RIDGEWOOD EMERGENCY GROUP LLC | 7,659 | 92.8% | 2.70x | ≈ $5.7M |
| 55 | EMERGENCY SERVICES OF OKLAHOMA PC | 7,638 | 91.5% | 3.01x | ≈ $7.1M |
| 56 | ALLATOONA EMERGENCY GROUP PC | 7,620 | 86.2% | 3.19x | ≈ $5.3M |
| 57 | IES ARIZONA, PLLC | 7,518 | 84.4% | 7.08x | ≈ $15.1M |
| 58 | Summit Anesthesia Partners PLLC | 7,424 | 85.5% | 50.11x | ≈ $112.8M |
| 59 | BV Emergency Physicians PLLC | 7,349 | 83.2% | 13.81x | ≈ $24.4M |
| 60 | TEXARKANA EP PLLC | 7,120 | 94.9% | 11.43x | ≈ $20.2M |
| 61 | ABQ EP | 7,050 | 92.4% | 12.74x | ≈ $18.9M |
| 62 | Hudson Regional Hospital | 6,764 | 85.4% | 52.54x | ≈ $234.8M |
| 63 | IAS ARIZONA PLLC | 6,719 | 85.0% | 4.71x | ≈ $25.4M |
| 64 | ADVANCED MEDICAL RESOURCES, LLC | 6,704 | 86.9% | 57.59x | ≈ $46.3M |
| 65 | SOUTHWEST EMERGENCY MEDICAL ASSOC OF NM PC | 6,538 | 97.9% | 4.29x | ≈ $12.3M |
| 66 | TEAM PHYS OF NORTHERN CA MED GROUP INC | 6,505 | 92.3% | 2.15x | ≈ $4.6M |
| 67 | SANDY CREEK EMERGENCY GROUP PC | 6,467 | 88.7% | 3.13x | ≈ $6.2M |
| 68 | East Coast Advanced Plastic Surgery | 6,402 | 88.7% | 24.86x | ≈ $167.6M |
| 69 | NORTHWEST INDIANA ER | 6,386 | 78.3% | 6.10x | ≈ $18.1M |
| 70 | EMERGENCY PHYSICIANS OF MID-AMERICA PC | 6,282 | 90.6% | 3.01x | ≈ $5.7M |
| 71 | VALLEY ANESTHESIOLOGY CONSULTANTS LTD | 6,085 | 85.0% | 1.78x | — |
| 72 | RR EMERGENCY PHYSICIANS, PLLC | 6,011 | 81.4% | 10.15x | ≈ $16.1M |
| 73 | Sterling Emergency Services of Miami Beach, P.A. | 5,724 | 89.2% | 2.57x | ≈ $3.2M |
| 74 | STERLING EMER SVCS MIAMI BEACH PA | 5,683 | 97.6% | 2.45x | ≈ $5.8M |
| 75 | SHERIDAN HEALTHCORP | 5,653 | 84.3% | 2.19x | — |
| 76 | VILLA PARK NEUROLOGICAL SERVICES, PLLC | 5,575 | 94.1% | 76.24x | ≈ $50.6M |
| 77 | TULSA EP | 5,439 | 95.0% | 15.38x | ≈ $14.1M |
| 78 | DUVAL EMERGENCY GROUP LLC | 5,427 | 91.8% | 2.04x | ≈ $5.2M |
| 79 | FLORIDA EMERGENCY PHYS KANG & ASSOCIATES MD | 5,341 | 91.1% | 3.15x | ≈ $3.6M |
| 80 | PROVIDENCE ANESTHESIOLOGY ASSOCIATES | 5,322 | 87.0% | 1.74x | ≈ $9.1M |
| 81 | OKLAHOMA EP | 5,298 | 92.8% | 15.52x | ≈ $13.5M |
| 82 | ARIZONA EP | 5,266 | 88.7% | 14.12x | ≈ $12.3M |
| 83 | NORTHWEST EMERGENCY PHYSICIANS LLC | 5,222 | 94.9% | 2.61x | ≈ $5.5M |
| 84 | MEDSURANT, LLC | 5,148 | 84.3% | 37.85x | ≈ $33.5M |
| 85 | PHYSIOLOGIC ASSESSMENT SERVICES, LLC | 5,101 | 75.5% | 27.29x | ≈ $43.2M |
| 86 | Western Virginia Regional Emergency Physicians, LLC | 5,045 | 82.7% | 4.15x | ≈ $2.2M |
| 87 | PEACH EMERGENCY GROUP LLC | 5,028 | 88.0% | 3.25x | ≈ $3.6M |
| 88 | HIGHTOWER EMERGENCY GROUP PC | 5,000 | 85.7% | 3.22x | ≈ $3.0M |
| 89 | GREENBRIER EMERGENCY SERVICES INC | 4,997 | 92.6% | 3.43x | ≈ $3.2M |
| 90 | CAMELBACK ANESTHESIA PLLC | 4,978 | 75.5% | 5.13x | ≈ $32.5M |
| 91 | Calallen Emergency Physicians PLLC | 4,938 | 83.5% | 14.36x | ≈ $16.6M |
| 92 | VALUE MONITORING, LLC | 4,804 | 82.4% | 19.25x | ≈ $33.4M |
| 93 | NEW JERSEY HEALTHCARE SPECIALISTS PC | 4,799 | 83.5% | 1.55x | — |
| 94 | MELBOURNE EMERGENCY GROUP LLC | 4,774 | 91.2% | 2.57x | ≈ $3.8M |
| 95 | INTEGRATIVE EMERGENCY SERVICES PHYSICIAN GROUP, PA | 4,722 | 91.0% | 6.22x | ≈ $6.9M |
| 96 | BALDWIN EMERGENCY GROUP LLC | 4,677 | 86.4% | 3.13x | ≈ $3.0M |
| 97 | AMERICAN INTRAOPERATIVE MONITORING | 4,662 | 90.3% | 75.37x | ≈ $36.2M |
| 98 | SOUND PHYSICIANS EMERGENCY MEDICINE OF ARIZONA, INC | 4,530 | 76.8% | 9.55x | ≈ $12.5M |
| 99 | ROCKLEDGE EMERGENCY GROUP LLC | 4,521 | 90.2% | 2.57x | ≈ $3.9M |
| 100 | LAKE SPRING EMER GROUP LLC | 4,423 | 84.4% | 4.30x | ≈ $5.2M |
2023 Q1–2025 Q4 · ranked by disputes · groups with n ≥ 30 determined line items. Group names are as reported to CMS; a group may report under more than one name.
Provider group = the CMS “Provider/Facility Group Name”, with spelling variants merged (rules). Disputes = distinct dispute numbers among the group’s determined line items. Win % = line items where the provider or facility offer prevailed ÷ provider plus plan determinations (split decisions excluded, default decisions included). ×QPA = median “Prevailing Party Offer as % of QPA”. Groups need at least 30 determined line items.
≈ Total awarded: sum of prevailing offers, 2024 Q3–2025 Q4 only. CMS does not publish dollars per provider; amounts are estimates from the CMS QPA and Offers file. “—” = too few of the group’s line items could be matched to that file to show an estimate. How the estimates work
Top 25 groups, 2025
| # | Provider group | Disputes | Win % | Award ×QPA | Total awarded (≈) |
|---|---|---|---|---|---|
| 1 | Singleton Associates, P.A. | 117,512 | 95.0% | 5.74x | ≈ $165.8M |
| 2 | OrthoMed Staffing, LLC | 49,452 | 84.3% | 9.23x | ≈ $212.7M |
| 3 | Houston Radiology Associated | 49,069 | 97.0% | 4.41x | ≈ $27.5M |
| 4 | Sonoran Radiology, LTD | 40,323 | 92.0% | 5.49x | ≈ $45.1M |
| 5 | U.S. Anesthesia Partners of Texas, P.A. | 28,607 | 84.6% | 3.14x | ≈ $67.0M |
| 6 | PRECISION EMERGENCY PHYSICIANS | 26,053 | 92.0% | 6.56x | ≈ $70.2M |
| 7 | SOUTHEASTERN EMERGENCY PHYSICIANS LLC | 25,354 | 92.9% | 3.27x | ≈ $32.6M |
| 8 | Imaging Associates of Indiana, PC | 25,118 | 90.4% | 5.33x | ≈ $22.2M |
| 9 | Remote Neuromonitoring Physicians PC | 24,399 | 88.7% | 13.41x | ≈ $71.0M |
| 10 | FREMONT EMERGENCY SERVICES SCHERR LTD | 21,937 | 93.8% | 2.65x | ≈ $22.0M |
| 11 | Physician Oversight LLC | 20,777 | 84.1% | 13.20x | ≈ $56.7M |
| 12 | Mori, Bean, and Brooks, Inc. | 20,306 | 98.1% | 3.25x | ≈ $21.3M |
| 13 | NPPA SERVICES | 17,397 | 91.5% | 79.55x | ≈ $151.0M |
| 14 | EMERGENCY PROFESSIONALS OF INDIANA PC | 14,490 | 92.3% | 2.64x | ≈ $13.5M |
| 15 | SUMMIT ANESTHESIA PARTNERS | 13,432 | 88.1% | 18.89x | ≈ $104.6M |
| 16 | Empire State Radiology, P.C. | 12,400 | 90.5% | 5.26x | ≈ $19.4M |
| 17 | EMERGENCY COVERAGE LLC | 12,147 | 91.7% | 2.18x | ≈ $11.9M |
| 18 | SPRINGFIELD SURGERY CENTER | 11,719 | 86.0% | 37.85x | — |
| 19 | ACS PRIMARY CARE PHYSICIANS - SOUTHEAST PC | 11,650 | 94.6% | 2.59x | ≈ $14.3M |
| 20 | U.S. Anesthesia Partners of Florida, Inc. | 11,638 | 86.3% | 2.28x | ≈ $26.5M |
| 21 | PARAGON CONTRACTING SERVICES LLC | 10,879 | 91.5% | 2.64x | ≈ $16.1M |
| 22 | EVOKES, LLC | 10,855 | 82.1% | 82.56x | ≈ $85.7M |
| 23 | TEXAS MEDICINE RESOURCES LLP | 10,550 | 96.7% | 2.37x | ≈ $12.2M |
| 24 | EMERGENCY PHYSICIANS SOUTHWEST PC | 9,110 | 94.9% | 2.19x | ≈ $11.5M |
| 25 | INPHYNET SOUTH BROWARD LLC | 8,932 | 91.6% | 1.73x | ≈ $10.3M |
2025 Q1–Q4 · ranked by disputes.
Figures describe dispute outcomes reported to CMS. They are not a measure of the quality, conduct or billing practices of any group. See methodology.