Certificate of Registration
2,185 laboratories hold this certificate in the CMS file for Q2 2026.
What it allows
Issued first to a laboratory that applies to perform moderate or high complexity testing: it lets the laboratory test until an inspection determines whether it meets the CLIA requirements.
A certificate says which tests a laboratory may perform. It does not grade the laboratory.
Who holds it
| Facility type | Active laboratories |
|---|---|
| Physician Office | 973 |
| Independent Laboratory | 614 |
| Other | 237 |
| Hospital | 122 |
| Ancillary Test Site | 63 |
| Ambulatory Surgery Center | 50 |
| Community Clinic | 29 |
| Other Practitioner | 16 |
| Ambulance | 16 |
| Federally Qualified Health Center | 15 |
| Mobile Lab | 13 |
| Blood Bank | 5 |
By state
| State or territory | Active laboratories |
|---|---|
| Alabama | 29 |
| Alaska | 5 |
| American Samoa | 1 |
| Arizona | 70 |
| Arkansas | 25 |
| California | 243 |
| Colorado | 63 |
| Connecticut | 11 |
| Delaware | 4 |
| District of Columbia | 6 |
| Florida | 241 |
| Georgia | 89 |
| Hawaii | 7 |
| Idaho | 17 |
| Illinois | 64 |
| Indiana | 21 |
| Iowa | 11 |
| Kansas | 12 |
| Kentucky | 21 |
| Louisiana | 44 |
| Maine | 4 |
| Maryland | 46 |
| Massachusetts | 36 |
| Michigan | 56 |
| Minnesota | 16 |
| Mississippi | 17 |
| Missouri | 34 |
| Montana | 6 |
| Nebraska | 10 |
| Nevada | 17 |
| New Hampshire | 4 |
| New Jersey | 73 |
| New Mexico | 15 |
| New York | 47 |
| North Carolina | 71 |
| North Dakota | 1 |
| Ohio | 39 |
| Oklahoma | 18 |
| Oregon | 15 |
| Pennsylvania | 37 |
| Puerto Rico | 16 |
| Rhode Island | 3 |
| South Carolina | 68 |
| South Dakota | 8 |
| Tennessee | 29 |
| Texas | 389 |
| Utah | 40 |
| Vermont | 3 |
| Virginia | 28 |
| West Virginia | 6 |
| Wisconsin | 19 |
| Wyoming | 3 |