HealthCareAtlasUSA

This site republishes official CMS/Medicare Care Compare data. It is not medical advice and does not recommend any specific hospital or treatment — for medical decisions, talk to a doctor.

Doctors / MA

SARA A CALLAHAN, NP

NURSE PRACTITIONER

Graduated: 2017

Offers telehealth

NPI: 1942722533

Practice Locations (5)

THE GENERAL HOSPITAL CORPORATION

55 FRUIT ST

BOSTON, MA 021142621

6177262000

MASSACHUSETTS GENERAL PHYSICIANS ORGANIZATION INC

55 FRUIT ST

BOSTON, MA 021142696

6177240287

THE GENERAL HOSPITAL CORPORATION

73 HIGH ST

CHARLESTOWN, MA 021293026

6177248167

MASS GENERAL BRIGHAM MEDICAL GROUP NORTHERN MASSACHUSETTS INC

2 CORPORATION WAY, SUITE 180

PEABODY, MA 019607996

9785326111

THE GENERAL HOSPITAL CORPORATION

40 2ND AVE

WALTHAM, MA 024511132

7814872900

Source: CMS National Downloadable File, September 2026.