BEGIN:VCARD VERSION:3.0 FN:Christopher Hsu\, MD N:Hsu;Christopher;;;MD TITLE:Ophthalmology Physician TEL;TYPE=WORK,VOICE:+16194420844 URL:https://www.gale.care/providers/ca/el-cajon/christopher-hsu-md-13361676 18 NOTE:NPI 1336167618. From the NPPES registry (CMS)\, file of 2026-06-08. No t affiliated with Gale. X-NPI:1336167618 END:VCARD