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

HOWARD D GUAN, MD

OPHTHALMOLOGY

Medical school: LOMA LINDA UNIVERSITY SCHOOL OF MEDICINE

Graduated: 2010

NPI: 1134427636

Practice Locations (1)

TORY PRESTERA MD INC.

100 N RANCHO SANTA FE RD, SUITE 126

SAN MARCOS, CA 920691294

7605980400

Source: CMS National Downloadable File, September 2026.

HOWARD GUAN, MD | HealthCareAtlasUSA