CLIA lookup
CLIA Labs in Connecticut
Every lab with an active CLIA certificate in Connecticut, by city.
2,987 labs in Connecticut hold an active CLIA certificate in the CMS file posted October 16, 2026.
2,379 of them hold a Certificate of Waiver.
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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Certificates in Connecticut
- Certificate of Waiver
- 2,379
- Certificate for Provider-Performed Microscopy Procedures
- 311
- Certificate of Compliance
- 169
- Certificate of Accreditation
- 115
- Certificate of Registration
- 13
Source: CMS Provider of Services File, Clinical Laboratories (CLIA), as of October 16, 2026. Publisher page
By city
- Stamford143 active labs
- New Haven110 active labs
- Hartford101 active labs
- Waterbury81 active labs
- Danbury79 active labs
- Hamden68 active labs
- Norwalk68 active labs
- Fairfield62 active labs
- Bridgeport58 active labs
- Enfield58 active labs
- Farmington58 active labs
- Middletown56 active labs
- Norwich56 active labs
- Greenwich54 active labs
- West Hartford54 active labs
- Milford53 active labs
- Manchester48 active labs
- Bloomfield46 active labs
- Branford46 active labs
- Torrington46 active labs
- Glastonbury45 active labs
- Wallingford44 active labs
- Meriden43 active labs
- Shelton43 active labs
- New London40 active labs
- Rocky Hill40 active labs
- New Britain38 active labs
- Trumbull37 active labs
- North Haven36 active labs
- Stratford34 active labs
- Avon33 active labs
- Bristol33 active labs
- Cheshire31 active labs
- South Windsor30 active labs
- Southbury30 active labs
- Westport30 active labs
- West Haven29 active labs
- New Milford28 active labs
- Orange28 active labs
- Southington28 active labs
- Vernon28 active labs
- East Hartford27 active labs
- Ridgefield26 active labs
- Darien25 active labs
- Newington24 active labs
- Groton23 active labs
- Guilford23 active labs
- Waterford23 active labs
- Derby22 active labs
- Madison21 active labs
- Newtown20 active labs
- Wethersfield20 active labs
- Wilton20 active labs
- Cromwell19 active labs
- Middlebury18 active labs
- New Canaan18 active labs
- Old Saybrook18 active labs
- Willimantic17 active labs
- Windsor17 active labs
- East Haven16 active labs
- Putnam14 active labs
- Mystic13 active labs
- Naugatuck13 active labs
- Brookfield12 active labs
- Westbrook11 active labs
- Bethel10 active labs
- Essex10 active labs
- Simsbury10 active labs
- Tolland10 active labs
- Watertown10 active labs
- Colchester9 active labs
- Marlborough9 active labs
- Plainville9 active labs
- Plantsville9 active labs
- Sharon9 active labs
- Stafford Springs9 active labs
- Suffield9 active labs
- Uncasville9 active labs
- Ansonia8 active labs
- Canton8 active labs
- Niantic8 active labs
- Prospect8 active labs
- Woodbridge8 active labs
- Winsted7 active labs
- Berlin6 active labs
- Brooklyn6 active labs
- Clinton6 active labs
- Granby6 active labs
- Monroe6 active labs
- Old Greenwich6 active labs
- Oxford6 active labs
- Plainfield6 active labs
- Seymour6 active labs
- Cos Cob5 active labs
- Coventry5 active labs
- Dayville5 active labs
- East Lyme5 active labs
- Ellington5 active labs
- Riverside5 active labs
- Storrs5 active labs
- W Hartford5 active labs
- Danielson4 active labs
- East Windsor4 active labs
- Hebron4 active labs
- Kensington4 active labs
- Kent4 active labs
- Lisbon4 active labs
- Mansfield Center4 active labs
- Old Lyme4 active labs
- Portland4 active labs
- Rockville4 active labs
- Southport4 active labs
- Windsor Locks4 active labs
- Wolcott4 active labs
- Bethlehem3 active labs
- Canaan3 active labs
- Chester3 active labs
- East Hampton3 active labs
- Jewett City3 active labs
- Litchfield3 active labs
- Mansfield3 active labs
- Mashantucket3 active labs
- Moosup3 active labs
- New Fairfield3 active labs
- North Branford3 active labs
- North Windham3 active labs
- Salisbury3 active labs
- Somers3 active labs
- Thomaston3 active labs
- West Redding3 active labs
- Ashford2 active labs
- Bolton2 active labs
- Bozrah2 active labs
- Canterbury2 active labs
- Centerbrook2 active labs
- Durham2 active labs
- Gales Ferry2 active labs
- Haddam2 active labs
- Higganum2 active labs
- Lakeville2 active labs
- Moodus2 active labs
- New Preston2 active labs
- North Stonington2 active labs
- Pawcatuck2 active labs
- Pomfret2 active labs
- Pomfret Center2 active labs
- Unionville2 active labs
- Vernon Rockville2 active labs
- Washington2 active labs
- Weatogue2 active labs
- Weston2 active labs
- Willington2 active labs
- Windham2 active labs
- Woodbury2 active labs
- Woodstock2 active labs
- Abington1 active lab
- Andover1 active lab
- Baltic1 active lab
- Bantam1 active lab
- Beacon Falls1 active lab
- Burlington1 active lab
- Cobalt1 active lab
- Columbia1 active lab
- East Granby1 active lab
- East Hartland1 active lab
- Eastford1 active lab
- Falls Village1 active lab
- Franklin1 active lab
- Goshen1 active lab
- Harwinton1 active lab
- Killingly1 active lab
- Killingworth1 active lab
- Lebanon1 active lab
- Ledyard1 active lab
- Lyme1 active lab
- Middlefield1 active lab
- Milldale1 active lab
- Norfolk1 active lab
- North Grosvenordale1 active lab
- Northford1 active lab
- Norwichtown1 active lab
- Oakdale1 active lab
- Oakville1 active lab
- Plymouth1 active lab
- Putman1 active lab
- Redding Ridge1 active lab
- Sandy Hook1 active lab
- Simbury1 active lab
- South Kent1 active lab
- Storrs Mansfield1 active lab
- Taftville1 active lab
- Thompson1 active lab
- Union1 active lab
- W Haven1 active lab
- Warren1 active lab
- Washington Depot1 active lab
Related
Questions
How many CLIA labs are in Connecticut?
2,987 labs in Connecticut hold an active CLIA certificate in the CMS file posted October 16, 2026.
How many Connecticut labs have a Certificate of Waiver?
2,379 of the 2,987 active labs in Connecticut hold a Certificate of Waiver.
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.