Colonoscopy clinicians in Massachusetts
CMS lists 537 clinicians with a primary specialty of Gastroenterology, Internal Medicine, Family Practice, or General Practice who have billed Medicare for at least one colonoscopy and practice in Massachusetts, across 93 cities (details below).
Cities
# of clinicians performing colonoscopies
- Acton 8
- Andover 11
- Arlington 1
- Athol 1
- Attleboro 6
- Auburn 7
- Beverly 7
- Boston 222
- Bourne 2
- Braintree 6
- Brighton 7
- Brockton 16
- Burlington 45
- Cambridge 20
- Chelmsford 8
- Chelsea 2
- Chestnut Hill 21
- Concord 8
- Danvers 22
- Dartmouth 7
- Dedham 5
- Dorchester 1
- East Boston 1
- East Bridgewater 1
- Everett 4
- Fairhaven 4
- Fall River 15
- Falmouth 3
- Florence 5
- Foxborough 1
- Framingham 11
- Gardner 7
- Gloucester 2
- Great Barrington 7
- Greenfield 5
- Groton 1
- Harwich 1
- Haverhill 4
- Holyoke 6
- Hyannis 11
- Jamaica Plain 18
- Kingston 1
- Lawrence 4
- Leominster 5
- Lexington 4
- Lowell 12
- Lynn 3
- Malden 1
- Marlborough 3
- Melrose 5
- Methuen 1
- Middleton 1
- Milford 6
- Milton 4
- Nantucket 1
- Needham 20
- New Bedford 7
- Newburyport 4
- Newton 19
- Norfolk 2
- North Attleboro 1
- Northampton 5
- Norwell 6
- Palmer 5
- Peabody 10
- Pembroke 2
- Pittsfield 10
- Plymouth 9
- Quincy 8
- Reading 1
- Revere 6
- Salem 13
- Sandwich 1
- Scituate 1
- Somerset 2
- Somerville 7
- South Boston 1
- South Easton 3
- South Hamilton 2
- South Weymouth 2
- Southborough 10
- Springfield 20
- Stoneham 16
- Swansea 1
- Taunton 4
- Waltham 1
- Ware 1
- Wareham 1
- Wellesley 4
- Westminster 1
- Weston 1
- Weymouth 14
- Worcester 38
A clinician who practices in more than one city is counted in each city.
Understanding CMS Data
CMS's "Colonoscopy" category combines specific billing codes for colonoscopy to calculate the number of times each clinician billed Medicare for a "Colonoscopy." These include screening colonoscopy, diagnostic colonoscopy, and colonoscopy with biopsy or polyp removal. CMS's list also includes flexible sigmoidoscopy and laparoscopic appendectomy, so a clinician's count may include those procedures. CMS counts one procedure per patient per day, so a colonoscopy that included both a biopsy and a polyp removal counts once. CMS reports only procedures that clinicians billed to Original Medicare and Medicare Advantage. Therefore, CMS's procedure volume data does not include procedures that clinicians may have performed on patients who have other health care coverage (e.g., commercial insurance, self-pay, or the VA). Billing variation and coding errors can also affect CMS's data. Therefore, the number of procedures that CMS reports for a clinician may be higher or lower than the actual number of colonoscopies a clinician performed during the reporting period. Lastly, only clinicians with a primary specialty of Gastroenterology, Internal Medicine, Family Practice, or General Practice (as reported to Medicare) are presented.
Source: Centers for Medicare & Medicaid Services (October 2, 2026 release).