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 / LA

MARK A OPERARIO, MD

INTERNAL MEDICINE

Graduated: 1985

NPI: 1720099344

Practice Locations (1)

CALDWELL MEMORIAL HOSPITAL, INC.

411 MAIN ST

COLUMBIA, LA 714186704

3186496111

Source: CMS National Downloadable File, September 2026.

MARK OPERARIO, MD | HealthCareAtlasUSA