| # | Provider | Specialty | State | Payments | Services | Avg/Service |
|---|---|---|---|---|---|---|
| 1 | Laboratory Corporation Of America Holdings | Clinical Laboratory | NC | $11.0M | 378.3K | $28.98 |
| 2 | Laboratory Corporation Of America Holdings | Clinical Laboratory | NJ | $8.4M | 288.6K | $28.98 |
| 3 | Quest Diagnostics Clinical Laboratories Inc | Clinical Laboratory | FL | $6.3M | 218.6K | $29.00 |
| 4 | Quest Diagnostics Incorporated | Clinical Laboratory | NJ | $5.6M | 192.4K | $29.01 |
| 5 | Unilab Corporation | Clinical Laboratory | CA | $5.2M | 180.1K | $29.00 |
| 6 | Laboratory Corporation Of America Holdings | Clinical Laboratory | OH | $4.2M | 145.8K | $28.97 |
| 7 | Laboratory Corporation Of America Holdings | Clinical Laboratory | AL | $4.1M | 142.4K | $28.94 |
| 8 | Laboratory Corporation Of America | Clinical Laboratory | CA | $3.5M | 121.0K | $29.00 |
| 9 | Labone Llc | Clinical Laboratory | KS | $3.1M | 106.9K | $29.01 |
| 10 | Laboratory Corporation Of America | Clinical Laboratory | FL | $3.1M | 106.8K | $29.00 |
| 11 | Quest Diagnostics Clinical Laboratories Inc | Clinical Laboratory | FL | $2.9M | 99.5K | $29.01 |
| 12 | Quest Diagnostics Clinical Laboratories Inc | Clinical Laboratory | GA | $2.8M | 96.8K | $29.01 |
| 13 | Sonora Quest Laboratories Llc | Clinical Laboratory | AZ | $2.8M | 96.9K | $28.95 |
| 14 | Clinical Pathology Laboratories, Inc. | Clinical Laboratory | TX | $2.8M | 95.9K | $28.90 |
| 15 | Unilab Corporation | Clinical Laboratory | CA | $2.7M | 94.5K | $29.01 |
| 16 | Quest Diagnostics Llc Il | Clinical Laboratory | IL | $2.7M | 91.4K | $29.01 |
| 17 | Northwell Health Laboratories | Clinical Laboratory | NY | $2.6M | 90.9K | $29.00 |
| 18 | Sunrise Medical Laboratories, Inc. | Clinical Laboratory | NY | $2.4M | 82.5K | $29.00 |
| 19 | Quest Diagnostics Clinical Laboratories Inc | Clinical Laboratory | TX | $2.3M | 77.6K | $29.01 |
| 20 | Pathgroup Labs, Llc | Clinical Laboratory | NC | $2.2M | 76.0K | $28.95 |
| 21 | Bioreference Health, Llc | Clinical Laboratory | NJ | $2.1M | 73.1K | $28.99 |
| 22 | Laboratory Corporation Of America | Clinical Laboratory | TX | $2.0M | 70.6K | $28.93 |
| 23 | Laboratory Corporation Of America | Clinical Laboratory | AZ | $1.8M | 62.1K | $29.01 |
| 24 | Quest Diagnostics Incorporated Md | Clinical Laboratory | MD | $1.8M | 61.8K | $29.01 |
| 25 | Laboratory Corporation Of America | Clinical Laboratory | TX | $1.7M | 59.5K | $28.97 |
| State | Payments | Services | Providers | Avg/Provider |
|---|---|---|---|---|
| CA | $21.6M | 746.8K | 490 | $44.2K |
| FL | $19.9M | 685.0K | 922 | $21.5K |
| NJ | $19.7M | 678.3K | 249 | $79.0K |
| NC | $17.6M | 608.3K | 871 | $20.2K |
| TX | $15.9M | 550.6K | 1.0K | $15.8K |
| NY | $11.2M | 385.0K | 1.0K | $10.9K |
| OH | $7.7M | 267.5K | 365 | $21.2K |
| AZ | $5.8M | 200.6K | 275 | $21.1K |
| AL | $5.5M | 189.8K | 342 | $16.0K |
| IL | $5.3M | 184.2K | 362 | $14.7K |
| GA | $4.7M | 161.0K | 468 | $10.0K |
| MA | $4.4M | 151.8K | 435 | $10.1K |
| KS | $4.3M | 146.9K | 157 | $27.1K |
| TN | $3.7M | 129.8K | 909 | $4.1K |
| MD | $3.3M | 114.3K | 217 | $15.2K |
| VA | $3.2M | 110.3K | 450 | $7.1K |
| PA | $3.0M | 105.1K | 156 | $19.5K |
| WA | $1.8M | 62.0K | 172 | $10.4K |
| SC | $1.7M | 60.2K | 281 | $6.2K |
| MI | $1.6M | 55.8K | 182 | $8.9K |
| WI | $1.6M | 54.9K | 121 | $13.1K |
| OK | $1.5M | 52.0K | 116 | $13.0K |
| NV | $1.3M | 44.8K | 31 | $41.9K |
| IN | $1.3M | 44.4K | 110 | $11.7K |
| CO | $1.1M | 39.4K | 79 | $14.5K |
| LA | $1.0M | 35.5K | 202 | $5.1K |
| KY | $1.0M | 35.0K | 119 | $8.5K |
| AR | $937.9K | 32.5K | 236 | $4.0K |
| MS | $811.7K | 28.2K | 176 | $4.6K |
| OR | $804.9K | 27.9K | 148 | $5.4K |
Last Updated: February 2026 (data through 2023, the latest CMS release)
Note: All data is from publicly available Medicare records. OpenMedicare is an independent journalism project not affiliated with CMS.