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

CHRISTOPHER M LEAHY, PA

PHYSICIAN ASSISTANT

Graduated: 2006

NPI: 1023049525

Practice Locations (6)

ATRIUS HEALTH INC

228 BILLERICA RD

CHELMSFORD, MA 018243604

9782506000

RELIANT MEDICAL GROUP INC

234 WASHINGTON ST

HUDSON, MA 017493735

5085952700

RELIANT MEDICAL GROUP INC

241 N MAIN ST

LEOMINSTER, MA 014532219

5085952700

RELIANT MEDICAL GROUP INC

24 NEWTON ST

SOUTHBOROUGH, MA 017721215

5084864472

RELIANT MEDICAL GROUP INC

5 NEPONSET ST

WORCESTEER, MA 016062714

5085952300

RELIANT MEDICAL GROUP INC

123 SUMMER ST

WORCESTER, MA 016081216

5083635000

Source: CMS National Downloadable File, September 2026.