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Doctors / CT

DENNIS G ONEILL, MD

PATHOLOGY

Medical school: RUTGERS NEW JERSEY MEDICAL SCHOOL

Graduated: 1979

NPI: 1083679021

Practice Locations (5)

CONNECTICUT GI PLLC

85 SEYMOUR ST, SUITE 1000

HARTFORD, CT 061065529

8602462571

EASTERN CONNECTICUT PATHOLOGY CONSULTANTS, PC

71 HAYNES ST

MANCHESTER, CT 060404131

8606476487

CONNECTICUT GI PLLC

105 WAWECUS ST

NORWICH, CT 063602146

8608599061

STAMFORD GASTROENTEROLOGY INC

90 MORGAN ST, SUITE 301

STAMFORD, CT 069055436

2039987400

CONNECTICUT GI PLLC

1290 SILAS DEANE HWY

WETHERSFIELD, CT 061094337

8608599061

Source: CMS National Downloadable File, September 2026.

DENNIS ONEILL, MD | HealthCareAtlasUSA