Jonathan WilliamsonM.D.
Jonathan Williamson, M.D. is a Gastroenterology provider in Hartford, CT affiliated with 2 ambulatory surgery centers in CT, as of July 2026.
- NPI1881891703
- Registered2007
- Centers2
- StateCT
- Class of2007
Case volumes, referral patterns, and payer mix live in DataLily AI Insights.
Ambulatory surgery centers
Centers whose service lines match this provider’s. Affiliations change; verify independently.
Jonathan Williamson at a glance
- Provider
- Jonathan Williamson
- Credential
- M.D.
- Specialty
- Gastroenterology
- Procedures
- Gastroenterology CPT codes
- Location
- Hartford, CT
- Medical school graduation
- 2007
- NPI registered
- 2007
- NPI
- 1881891703
- Snapshot
- July 2026
Identity, specialty, and affiliations change over time. This is not an endorsement, and not clinical, billing, or legal advice. Providers may request corrections at founders@datalilyai.com. Read the DataLily AI data methodology.
Questions
Where does Jonathan Williamson practice?
Jonathan Williamson, M.D. is based in Hartford, CT and is affiliated with 2 ambulatory surgery centers: Ctgi Endoscopy Center LLC in Bloomfield, CT and Glastonbury Endoscopy Center in Glastonbury, CT. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is Jonathan Williamson's NPI number?
Jonathan Williamson's National Provider Identifier (NPI) is 1881891703, registered in 2007. Specialty on record: Gastroenterology; credential M.D.
How many Gastroenterology providers in Connecticut work at ambulatory surgery centers?
79 Gastroenterology surgeons and proceduralists in Connecticut are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, Jonathan Williamson among them. The Connecticut Gastroenterology directory lists each one by city with credential, NPI, and center affiliations.
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