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

DENNIS E OCONNOR, DC

CHIROPRACTIC

Medical school: LOS ANGELES COLLEGE OF CHIROPRACTIC

Graduated: 1988

NPI: 1710994033

Practice Locations (2)

2 BROOKHOUSE DR

Marblehead, MA 019451611

2 BROOKHOUSE DR

MARBLEHEAD, MA 019451611

7816310155

Source: CMS National Downloadable File, September 2026.