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

SEBASTIAN G SEPULVEDA, MD

INTERNAL MEDICINE

Graduated: 1988

Also: NEPHROLOGY

NPI: 1558343129

Practice Locations (2)

COMMONWEALTH MEDICAL PRACTICE LLC

9 N RD, UNIT 101

CHELMSFORD, MA 018242755

9784582005

LOWELL GENERAL INPATIENT SPECIALISTS PLLC

295 VARNUM AVE

LOWELL, MA 018542134

9789376439

Source: CMS National Downloadable File, September 2026.