BEGIN:VCARD VERSION:3.0 FN:Mark Nathan\, MD N:Nathan;Mark;;;MD TITLE:Interventional Cardiology Physician TEL;TYPE=WORK,VOICE:+19252742860 URL:https://www.gale.care/providers/ca/walnut-creek/mark-nathan-md-10139476 70 NOTE:NPI 1013947670. From the NPPES registry (CMS)\, file of 2026-06-08. No t affiliated with Gale. X-NPI:1013947670 END:VCARD