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

SIDNEY OLEFSON, MD

GASTROENTEROLOGY

Medical school: ALBANY MEDICAL COLLEGE OF UNION UNIVERSITY

Graduated: 2013

Also: INTERNAL MEDICINE

NPI: 1457798506

Practice Locations (3)

PRIMA CARE, PC

277 PLEASANT ST, SUITE 240

FALL RIVER, MA 027213005

5086763292

PHYSICIANS OF CAPE COD HOSPITAL

27 PARK ST

HYANNIS, MA 026015230

7745526000

SARATOGA SCHENECTADY GASTROENTEROLOGY ASSOCIATES, PC

848 STATE ROUTE 50

BURNT HILLS, NY 120279511

51883115001100

Source: CMS National Downloadable File, September 2026.

SIDNEY OLEFSON, MD | HealthCareAtlasUSA