Dr. Van Ong, D.O.

With 14 years of practice, Dr. Van Ong is an established internal medicine provider, D.O., after earning their medical degree at Other in 2012. Dr. currently practices across 2 facilities, including Sutter Bay Medical Foundation in Sunnyvale, California. Their National Provider Identifier (NPI) is 1285990614, and the profile below combines data from CMS NPPES, Medicare billing records, the HHS OIG exclusion list, and — where available — CMS Open Payments, Medicare Utilization, and Part D prescriber summaries.

CMS Medicare data shows Dr. Van Ong as a lower-volume internal medicine provider, treating approximately 153 Medicare beneficiaries and delivering 313 services in the most recent reporting year. That panel size indicates a smaller, more selective practice pattern.