CLIA laboratories in Massachusetts

5,357 laboratories hold an active CLIA certificate in Massachusetts 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

By facility type

By city

• Acton — 19
• Agawam — 16
• Amesbury — 10
• Amherst — 18
• Andover — 27
• Arlington — 20
• Athol — 12
• Attleboro — 35
• Auburn — 20
• Bedford — 19
• Beverly — 50
• Billerica — 15
• Boston — 243
• Braintree — 39
• Bridgewater — 12
• Brighton — 21
• Brockton — 89
• Brookline — 44
• Burlington — 31
• Cambridge — 84
• Canton — 24
• Chelmsford — 37
• Chelsea — 22
• Chestnut Hill — 21
• Chicopee — 25
• Cohasset — 10
• Concord — 36
• Danvers — 44
• Dartmouth — 21
• Dedham — 31
• Dorchester — 36
• Dracut — 12
• Duxbury — 11
• East Longmeadow — 16
• Fairhaven — 15
• Fall River — 98
• Falmouth — 24
• Fitchburg — 32
• Foxboro — 11
• Foxborough — 15
• Framingham — 83
• Franklin — 25
• Gardner — 29
• Gloucester — 19
• Great Barrington — 16
• Greenfield — 28
• Hanover — 13
• Haverhill — 39
• Hingham — 18
• Holyoke — 48
• Hopkinton — 13
• Hudson — 11
• Hyannis — 38
• Hyde Park — 12
• Jamaica Plain — 19
• Lawrence — 47
• Lenox — 15
• Leominster — 48
• Lexington — 31
• Longmeadow — 17
• Lowell — 58
• Ludlow — 12
• Lynn — 40
• Malden — 17
• Mansfield — 12
• Marlborough — 47
• Mashpee — 19
• Medford — 41
• Medway — 10
• Melrose — 16
• Methuen — 32
• Milford — 43
• Milton — 15
• Nantucket — 10
• Natick — 35
• Needham — 37
• New Bedford — 44
• Newburyport — 35
• Newton — 55
• North Adams — 19
• North Andover — 48
• North Attleboro — 15
• North Chelmsford — 13
• North Dartmouth — 31
• North Easton — 11
• North Reading — 11
• Northampton — 43
• Northborough — 14
• Norwell — 15
• Norwood — 41
• Palmer — 12
• Peabody — 43
• Pembroke — 13
• Pittsfield — 51
• Plainville — 10
• Plymouth — 64
• Quincy — 61
• Randolph — 16
• Raynham — 16
• Reading — 11
• Revere — 16
• Roxbury — 12
• Salem — 27
• Sandwich — 18
• Saugus — 12
• Shrewsbury — 20
• Somerville — 16
• South Hadley — 11
• South Weymouth — 11
• South Yarmouth — 10
• Southborough — 19
• Southbridge — 15
• Springfield — 128
• Stoneham — 23
• Stoughton — 32
• Sturbridge — 11
• Sudbury — 17
• Swansea — 17
• Taunton — 35
• Tewksbury — 22
• Wakefield — 19
• Walpole — 13
• Waltham — 65
• Wareham — 17
• Watertown — 33
• Wayland — 10
• Webster — 18
• Wellesley — 56
• Wellesley Hills — 10
• West Roxbury — 14
• West Springfield — 38
• Westborough — 25
• Westfield — 23
• Westford — 18
• Weston — 14
• Westwood — 11
• Weymouth — 46
• Wilbraham — 10
• Wilmington — 26
• Winchester — 21
• Woburn — 59
• Worcester — 221
• Wrentham — 11

Smaller places of Massachusetts — 884 laboratories.

City counts are the laboratories listed on this site; 153 more in Massachusetts carry only a person's name and are found by search.