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 S LEAN, MD

OPHTHALMOLOGY

Graduated: 1971

NPI: 1962513465

Practice Locations (2)

RETINA ASSOCIATES OF ORANGE COUNTY

23521 PASEO DE VALENCIA, SUITE 207

LAGUNA HILLS, CA 926533140

9497075125

RETINA ASSOCIATES OF ORANGE COUNTY

2010 E 1ST ST, SUITE 140

SANTA ANA, CA 927054086

7145436020

Source: CMS National Downloadable File, September 2026.

JOHN LEAN, MD | HealthCareAtlasUSA