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

KOOK I CHANG, MD

INTERNAL MEDICINE

Graduated: 1967

Also: CARDIAC SURGERY, CARDIOVASCULAR DISEASE (CARDIOLOGY)

Offers telehealth

NPI: 1356442354

Practice Locations (1)

14600 SHERMAN WAY, SUITE 270

VAN NUYS, CA 914052272

8187807771

Source: CMS National Downloadable File, September 2026.

KOOK CHANG, MD | HealthCareAtlasUSA