| # | Provider | Specialty | State | Payments | Services | Avg/Service |
|---|---|---|---|---|---|---|
| 1 | Laboratory Corporation Of America Holdings | Clinical Laboratory | NC | $6.4M | 673.5K | $9.51 |
| 2 | Laboratory Corporation Of America Holdings | Clinical Laboratory | NJ | $5.8M | 605.4K | $9.51 |
| 3 | Quest Diagnostics Incorporated | Clinical Laboratory | NJ | $4.5M | 473.9K | $9.52 |
| 4 | Quest Diagnostics Clinical Laboratories Inc | Clinical Laboratory | FL | $3.6M | 381.2K | $9.52 |
| 5 | Unilab Corporation | Clinical Laboratory | CA | $3.2M | 333.2K | $9.51 |
| 6 | Laboratory Corporation Of America | Clinical Laboratory | CA | $2.5M | 258.4K | $9.52 |
| 7 | Laboratory Corporation Of America Holdings | Clinical Laboratory | OH | $2.3M | 243.4K | $9.51 |
| 8 | Laboratory Corporation Of America Holdings | Clinical Laboratory | AL | $2.2M | 232.0K | $9.49 |
| 9 | Clinical Pathology Laboratories, Inc. | Clinical Laboratory | TX | $2.0M | 212.0K | $9.52 |
| 10 | Laboratory Corporation Of America | Clinical Laboratory | FL | $1.9M | 199.0K | $9.52 |
| 11 | Unilab Corporation | Clinical Laboratory | CA | $1.8M | 191.7K | $9.52 |
| 12 | Sonora Quest Laboratories Llc | Clinical Laboratory | AZ | $1.8M | 190.4K | $9.50 |
| 13 | Quest Diagnostics Clinical Laboratories Inc | Clinical Laboratory | FL | $1.6M | 166.8K | $9.52 |
| 14 | Quest Diagnostics Clinical Laboratories Inc | Clinical Laboratory | GA | $1.5M | 158.7K | $9.52 |
| 15 | Northwell Health Laboratories | Clinical Laboratory | NY | $1.5M | 155.2K | $9.52 |
| 16 | Quest Diagnostics Clinical Laboratories Inc | Clinical Laboratory | TX | $1.5M | 153.5K | $9.52 |
| 17 | Labone Llc | Clinical Laboratory | KS | $1.4M | 143.9K | $9.52 |
| 18 | Quest Diagnostics Llc Il | Clinical Laboratory | IL | $1.3M | 140.9K | $9.52 |
| 19 | Sunrise Medical Laboratories, Inc. | Clinical Laboratory | NY | $1.3M | 138.7K | $9.52 |
| 20 | Laboratory Corporation Of America | Clinical Laboratory | AZ | $1.2M | 128.7K | $9.52 |
| 21 | Laboratory Corporation Of America | Clinical Laboratory | TX | $1.2M | 124.3K | $9.50 |
| 22 | Quest Diagnostics Clinical Laboratories Inc | Clinical Laboratory | TX | $1.2M | 124.0K | $9.52 |
| 23 | Quest Diagnostics Incorporated Md | Clinical Laboratory | MD | $1.2M | 123.8K | $9.52 |
| 24 | Laboratory Corporation Of America | Clinical Laboratory | TX | $1.1M | 120.4K | $9.49 |
| 25 | Pathgroup Labs, Llc | Clinical Laboratory | NC | $1.0M | 107.5K | $9.49 |
| State | Payments | Services | Providers | Avg/Provider |
|---|---|---|---|---|
| CA | $14.7M | 1.5M | 1.9K | $7.6K |
| NJ | $13.6M | 1.4M | 509 | $26.6K |
| FL | $12.6M | 1.3M | 2.1K | $6.1K |
| TX | $11.4M | 1.2M | 2.8K | $4.0K |
| NC | $11.0M | 1.2M | 2.7K | $4.0K |
| NY | $6.3M | 660.6K | 2.1K | $3.0K |
| OH | $5.1M | 540.4K | 2.1K | $2.4K |
| AZ | $4.0M | 425.1K | 799 | $5.1K |
| GA | $3.6M | 378.5K | 1.7K | $2.1K |
| AL | $3.5M | 368.0K | 1.1K | $3.2K |
| IL | $3.4M | 361.6K | 1.5K | $2.3K |
| MA | $3.0M | 319.3K | 1.4K | $2.1K |
| VA | $2.9M | 306.5K | 1.2K | $2.5K |
| TN | $2.7M | 288.9K | 1.6K | $1.7K |
| MD | $2.6M | 279.1K | 839 | $3.2K |
| KS | $2.6M | 270.7K | 507 | $5.1K |
| WA | $2.2M | 231.0K | 1.1K | $1.9K |
| PA | $2.1M | 216.3K | 906 | $2.3K |
| SC | $2.0M | 216.5K | 1.3K | $1.5K |
| MS | $1.9M | 205.7K | 717 | $2.7K |
| IN | $1.6M | 169.5K | 1.5K | $1.1K |
| OK | $1.6M | 165.1K | 741 | $2.1K |
| WI | $1.5M | 158.2K | 714 | $2.1K |
| MI | $1.4M | 150.4K | 1.4K | $1.0K |
| MO | $1.2M | 122.8K | 938 | $1.2K |
| MN | $1.1M | 118.9K | 1.5K | $749.11 |
| CO | $1.1M | 115.1K | 654 | $1.7K |
| KY | $1.1M | 112.3K | 880 | $1.2K |
| LA | $972.7K | 102.7K | 561 | $1.7K |
| NV | $931.1K | 98.1K | 205 | $4.5K |
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.