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

JOHN Y KOO, MD

DERMATOLOGY

Medical school: HARVARD MEDICAL SCHOOL

Graduated: 1981

Also: PSYCHIATRY

Offers telehealth

NPI: 1245289594

Practice Locations (1)

UNIVERSITY OF CALIFORNIA SAN FRANCISCO

400 PARNASSUS AVE, MCB300

SAN FRANCISCO, CA 941430810

4154761000

Source: CMS National Downloadable File, September 2026.

JOHN KOO, MD | HealthCareAtlasUSA