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

YOUNG J KO, MD

INTERNAL MEDICINE

Graduated: 1973

Also: CRITICAL CARE (INTENSIVISTS), PULMONARY DISEASE, SLEEP MEDICINE

Offers telehealth

NPI: 1639277130

Practice Locations (2)

AV CRITICAL CARE INC

1600 W AVE J

LANCASTER, CA 935342814

6619488000

44215 15TH ST W, SUITE 303

LANCASTER, CA 935340007

6619450723

Source: CMS National Downloadable File, September 2026.

YOUNG KO, MD | HealthCareAtlasUSA