CLIA laboratories in Connecticut
3,018 laboratories hold an active CLIA certificate in Connecticut in the CMS file for Q2 2026 (latest record: Jun 29, 2026).
Credentialing a laboratory, checking a claim or a contract? A dated CLIA certificate report ($19) — or a whole list checked at once.
By certificate type
| Certificate | Active laboratories |
|---|---|
| Certificate of Waiver | 2,415 |
| Certificate for Provider-Performed Microscopy (PPM) | 321 |
| Certificate of Compliance | 168 |
| Certificate of Accreditation | 103 |
| Certificate of Registration | 11 |
By facility type
By city
- Avon — 34
- Bethel — 11
- Bloomfield — 41
- Branford — 41
- Bridgeport — 57
- Bristol — 35
- Cheshire — 28
- Cromwell — 18
- Danbury — 79
- Darien — 24
- Derby — 18
- East Hartford — 25
- East Haven — 17
- Enfield — 52
- Essex — 11
- Fairfield — 62
- Farmington — 59
- Glastonbury — 42
- Greenwich — 46
- Groton — 22
- Guilford — 25
- Hamden — 64
- Hartford — 94
- Madison — 22
- Manchester — 49
- Meriden — 42
- Middlebury — 18
- Middletown — 58
- Milford — 47
- Mystic — 10
- Naugatuck — 13
- New Britain — 38
- New Canaan — 17
- New Haven — 104
- New London — 36
- New Milford — 27
- Newington — 25
- Newtown — 19
- North Haven — 35
- Norwalk — 66
- Norwich — 51
- Old Saybrook — 17
- Orange — 24
- Putnam — 14
- Ridgefield — 23
- Rocky Hill — 39
- Shelton — 42
- Simsbury — 11
- South Windsor — 28
- Southbury — 28
- Southington — 27
- Stamford — 131
- Stratford — 32
- Torrington — 42
- Trumbull — 35
- Vernon — 28
- Wallingford — 44
- Waterbury — 84
- Waterford — 22
- Watertown — 11
- West Hartford — 55
- West Haven — 26
- Westbrook — 11
- Westport — 29
- Wethersfield — 20
- Willimantic — 16
- Wilton — 19
- Windsor — 18
Smaller places of Connecticut — 406 laboratories.
City counts are the laboratories listed on this site; 154 more in Connecticut carry only a person's name and are found by search.