Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Jonathan Blair Williamson, MD

Individual provider Gastroenterology Physician · NPI 1881891703

Dr. Jonathan Blair Williamson, MD is a Gastroenterology in Hartford, Connecticut. Qualified in 2007, 19 years ago. Practices with Hartford Healthcare Medical Group Specialists PLLC, a 1,537-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Connecticut.

Years since qualifying
19
Licensed in
CT
In the registry since
2007
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

85 Seymour St Ste 1000
Hartford, CT 06106-5501
Phone: (860) 246-2571
Fax: (860) 246-3691
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 052966 (CT)

Record details

NPI number1881891703
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 3, 2007
Last updated in NPPESJanuary 4, 2019
Mailing address30 Waterchase Dr, Rocky Hill, CT 06067-2110

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGASTROENTEROLOGY
Medical schoolOTHER
Graduated 2007 (19 years in practice)
Group practice Hartford Healthcare Medical Group Specialists Pllc — 1537 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

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