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 / CA

CATHERINE DIAMOND, MD

INTERNAL MEDICINE

Medical school: ALBANY MEDICAL COLLEGE OF UNION UNIVERSITY

Graduated: 1991

Also: INFECTIOUS DISEASE

Offers telehealth

NPI: 1649350786

Practice Locations (1)

UC REGENTS

101 THE CITY DR S

ORANGE, CA 928683201

Source: CMS National Downloadable File, September 2026.