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 / ME

MARK R LENA, MD

GASTROENTEROLOGY

Medical school: GEISEL SCHOOL OF MEDICINE AT DARTMOUTH

Graduated: 1982

Also: INTERNAL MEDICINE

NPI: 1366484230

Practice Locations (1)

ST JOSEPH HOSPITAL

360 BROADWAY, SUITE 100

BANGOR, ME 044013979

2079073550

Source: CMS National Downloadable File, September 2026.

MARK LENA, MD | HealthCareAtlasUSA