BEGIN:VCARD VERSION:3.0 FN:David Hartzell\, OD N:Hartzell;David;;;OD TITLE:Optometrist TEL;TYPE=WORK,VOICE:+12098351181 URL:https://www.gale.care/providers/ca/tracy/david-hartzell-od-1639113814 NOTE:NPI 1639113814. From the NPPES registry (CMS)\, file of 2026-06-08. No t affiliated with Gale. X-NPI:1639113814 END:VCARD