CLIA lookup
CLIA Lookup
Look up a lab by CLIA number, or search lab names in one state. Data from the CMS Provider of Services file for clinical laboratories.
297,488 labs hold an active CLIA certificate in the CMS file posted October 16, 2026.
Enter a CLIA number to open its record, or pick a state to search by lab name.
Source: CMS Provider of Services File, Clinical Laboratories (CLIA), as of October 16, 2026. Publisher page
License: a US government work, in the public domain (Public Domain Mark 1.0).
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CLIA labs by state
- Alabama5,018 active labsAL
- Alaska714 active labsAK
- Arizona7,068 active labsAZ
- Arkansas3,299 active labsAR
- California22,905 active labsCA
- Colorado4,774 active labsCO
- Connecticut2,987 active labsCT
- Delaware1,023 active labsDE
- District of Columbia555 active labsDC
- Florida25,710 active labsFL
- Georgia11,326 active labsGA
- Hawaii824 active labsHI
- Idaho1,856 active labsID
- Illinois10,331 active labsIL
- Indiana6,729 active labsIN
- Iowa3,400 active labsIA
- Kansas3,212 active labsKS
- Kentucky5,011 active labsKY
- Louisiana5,043 active labsLA
- Maine1,299 active labsME
- Maryland5,088 active labsMD
- Massachusetts5,319 active labsMA
- Michigan8,787 active labsMI
- Minnesota5,750 active labsMN
- Mississippi3,340 active labsMS
- Missouri6,025 active labsMO
- Montana1,111 active labsMT
- Nebraska2,320 active labsNE
- Nevada2,338 active labsNV
- New Hampshire1,248 active labsNH
- New Jersey7,476 active labsNJ
- New Mexico1,935 active labsNM
- New York12,310 active labsNY
- North Carolina11,096 active labsNC
- North Dakota800 active labsND
- Ohio11,985 active labsOH
- Oklahoma4,287 active labsOK
- Oregon3,383 active labsOR
- Pennsylvania9,765 active labsPA
- Rhode Island782 active labsRI
- South Carolina5,415 active labsSC
- South Dakota972 active labsSD
- Tennessee7,231 active labsTN
- Texas29,163 active labsTX
- Utah2,372 active labsUT
- Vermont543 active labsVT
- Virginia7,415 active labsVA
- Washington8,245 active labsWA
- West Virginia2,079 active labsWV
- Wisconsin5,173 active labsWI
- Wyoming651 active labsWY
Largest city lists
- Houston, TX3,141 active labs
- Miami, FL2,122 active labs
- San Antonio, TX1,919 active labs
- Chicago, IL1,602 active labs
- New York, NY1,511 active labs
- Phoenix, AZ1,385 active labs
- Dallas, TX1,381 active labs
- Las Vegas, NV1,309 active labs
- Los Angeles, CA1,231 active labs
- Brooklyn, NY1,227 active labs
- Tampa, FL1,187 active labs
- Orlando, FL1,066 active labs
- Jacksonville, FL1,054 active labs
- Charlotte, NC1,006 active labs
- Columbus, OH997 active labs
- Austin, TX993 active labs
- Indianapolis, IN988 active labs
- Cincinnati, OH981 active labs
- Atlanta, GA975 active labs
- Tucson, AZ894 active labs
- Fort Worth, TX883 active labs
- Philadelphia, PA823 active labs
- Louisville, KY820 active labs
- El Paso, TX756 active labs
- Saint Louis, MO726 active labs
- Oklahoma City, OK711 active labs
- San Diego, CA683 active labs
- Baltimore, MD681 active labs
- Seattle, WA642 active labs
- Albuquerque, NM602 active labs
- Denver, CO593 active labs
- Raleigh, NC590 active labs
- Mesa, AZ581 active labs
- Memphis, TN580 active labs
- Tulsa, OK575 active labs
- Pittsburgh, PA570 active labs
- Omaha, NE569 active labs
- Richmond, VA567 active labs
- Nashville, TN563 active labs
- Portland, OR561 active labs
- Plano, TX560 active labs
- Washington, DC553 active labs
- Spokane, WA550 active labs
- Scottsdale, AZ545 active labs
- Knoxville, TN519 active labs
- Bronx, NY518 active labs
- Birmingham, AL516 active labs
- Vancouver, WA502 active labs
- Colorado Springs, CO494 active labs
- Fort Myers, FL492 active labs
Certificates in this file
- Certificate of Waiver
- 243,537
- Certificate for Provider-Performed Microscopy Procedures
- 22,021
- Certificate of Accreditation
- 15,645
- Certificate of Compliance
- 14,298
- Certificate of Registration
- 1,987
Source: CMS Provider of Services File, Clinical Laboratories (CLIA), as of October 16, 2026. Publisher page
Related
Questions
What does a CLIA number look like?
Ten characters: two digits, the letter D, then seven digits (for example 45D2100035). CMS assigns one to each laboratory certificate under the Clinical Laboratory Improvement Amendments.
What CLIA certificate types are there?
CMS issues five: Certificate of Compliance, Certificate of Waiver, Certificate of Accreditation, Certificate for Provider-Performed Microscopy Procedures, Certificate of Registration. The file posted October 16, 2026 lists 243,537 Waiver, 22,021 PPM, 15,645 Accreditation, 14,298 Compliance, 1,987 Registration among active labs.
Which labs are on this site?
Every lab with an active certificate (termination code 00) in the CMS Provider of Services file for clinical laboratories, period starting July 1, 2026, posted October 16, 2026: 297,488 labs in the 50 states and DC. Closed certificates are not listed.