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Doctors / MA

KELLY J O CALLAHAN, MD

GASTROENTEROLOGY

Medical school: UNIVERSITY OF MASSACHUSETTS MEDICAL SCHOOL

Graduated: 1993

NPI: 1427056795

Practice Locations (2)

NEW ENGLAND GASTROENTEROLOGY ASSOCIATES, PC

328 SHREWSBURY ST, SUITE 350

WORCESTER, MA 016044613

NEW ENGLAND GASTROENTEROLOGY ASSOCIATES, PC

328 SHREWSBURY ST, SUITE 350

WORCESTER, MA 016045465

5088310708

Source: CMS National Downloadable File, September 2026.

KELLY O CALLAHAN, MD | HealthCareAtlasUSA