| # | Provider | Specialty | State | Payments | Services | Avg/Service |
|---|---|---|---|---|---|---|
| 1 | Laboratory Corporation Of America Holdings | Clinical Laboratory | NC | $8.7M | 1.1M | $7.60 |
| 2 | Laboratory Corporation Of America Holdings | Clinical Laboratory | NJ | $6.4M | 843.6K | $7.59 |
| 3 | Quest Diagnostics Incorporated | Clinical Laboratory | NJ | $5.4M | 713.2K | $7.61 |
| 4 | Quest Diagnostics Clinical Laboratories Inc | Clinical Laboratory | FL | $5.2M | 684.4K | $7.61 |
| 5 | Unilab Corporation | Clinical Laboratory | CA | $4.2M | 547.2K | $7.61 |
| 6 | Laboratory Corporation Of America Holdings | Clinical Laboratory | AL | $3.5M | 464.2K | $7.60 |
| 7 | Sonora Quest Laboratories Llc | Clinical Laboratory | AZ | $3.4M | 444.5K | $7.60 |
| 8 | Laboratory Corporation Of America | Clinical Laboratory | CA | $3.2M | 417.3K | $7.61 |
| 9 | Laboratory Corporation Of America Holdings | Clinical Laboratory | OH | $3.1M | 414.1K | $7.60 |
| 10 | Clinical Pathology Laboratories, Inc. | Clinical Laboratory | TX | $2.9M | 378.2K | $7.61 |
| 11 | Quest Diagnostics Clinical Laboratories Inc | Clinical Laboratory | GA | $2.6M | 335.9K | $7.61 |
| 12 | Unilab Corporation | Clinical Laboratory | CA | $2.4M | 320.5K | $7.61 |
| 13 | Northwell Health Laboratories | Clinical Laboratory | NY | $2.3M | 304.3K | $7.61 |
| 14 | Labone Llc | Clinical Laboratory | KS | $2.3M | 298.8K | $7.61 |
| 15 | Laboratory Corporation Of America | Clinical Laboratory | FL | $2.2M | 294.5K | $7.60 |
| 16 | Quest Diagnostics Clinical Laboratories Inc | Clinical Laboratory | TX | $2.1M | 280.7K | $7.61 |
| 17 | Quest Diagnostics Clinical Laboratories Inc | Clinical Laboratory | FL | $2.1M | 280.2K | $7.61 |
| 18 | Laboratory Corporation Of America | Clinical Laboratory | TX | $2.0M | 268.9K | $7.59 |
| 19 | Quest Diagnostics Llc Il | Clinical Laboratory | IL | $2.0M | 266.5K | $7.61 |
| 20 | Laboratory Corporation Of America | Clinical Laboratory | AZ | $1.9M | 245.3K | $7.61 |
| 21 | Quest Diagnostics Clinical Laboratories Inc | Clinical Laboratory | TX | $1.7M | 226.4K | $7.61 |
| 22 | Laboratory Corporation Of America | Clinical Laboratory | TX | $1.6M | 214.0K | $7.60 |
| 23 | Sunrise Medical Laboratories, Inc. | Clinical Laboratory | NY | $1.5M | 200.3K | $7.61 |
| 24 | Quest Diagnostics Incorporated Md | Clinical Laboratory | MD | $1.5M | 190.9K | $7.61 |
| 25 | Pathgroup Labs, Llc | Clinical Laboratory | NC | $1.4M | 188.4K | $7.60 |
| State | Payments | Services | Providers | Avg/Provider |
|---|---|---|---|---|
| FL | $22.3M | 2.9M | 1.9K | $11.5K |
| CA | $20.9M | 2.7M | 1.2K | $17.2K |
| TX | $19.1M | 2.5M | 2.9K | $6.6K |
| NJ | $18.0M | 2.4M | 746 | $24.2K |
| NC | $14.3M | 1.9M | 1.9K | $7.4K |
| NY | $10.2M | 1.3M | 2.1K | $4.8K |
| OH | $7.1M | 935.9K | 608 | $11.7K |
| AZ | $7.0M | 926.3K | 598 | $11.8K |
| AL | $6.0M | 794.7K | 1.0K | $5.9K |
| IL | $5.6M | 737.3K | 849 | $6.6K |
| GA | $5.3M | 703.6K | 1.0K | $5.2K |
| TN | $5.1M | 675.1K | 1.9K | $2.7K |
| VA | $4.8M | 626.9K | 1.2K | $4.0K |
| MD | $4.2M | 553.2K | 636 | $6.6K |
| KS | $4.1M | 538.3K | 390 | $10.5K |
| MA | $3.6M | 471.3K | 737 | $4.9K |
| PA | $3.5M | 465.7K | 422 | $8.4K |
| WA | $3.3M | 432.5K | 668 | $4.9K |
| OK | $2.6M | 343.1K | 351 | $7.4K |
| SC | $2.5M | 334.5K | 807 | $3.1K |
| AR | $2.2M | 287.1K | 736 | $3.0K |
| WI | $2.1M | 272.9K | 870 | $2.4K |
| MI | $2.0M | 258.0K | 510 | $3.8K |
| MS | $1.9M | 245.3K | 887 | $2.1K |
| NV | $1.8M | 239.6K | 162 | $11.2K |
| CO | $1.8M | 231.9K | 242 | $7.3K |
| MO | $1.7M | 220.1K | 572 | $2.9K |
| IN | $1.6M | 213.8K | 286 | $5.7K |
| MN | $1.6M | 206.5K | 1.6K | $978.21 |
| LA | $1.6M | 205.4K | 427 | $3.7K |
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.