Han-ying Chang

With 18 years of practice, Han-ying Chang is an established ophthalmology provider after earning their medical degree at Johns Hopkins University School Of Medicine in 2008. Han-ying currently practices across 4 facilities, including Massachusetts Eye And Ear Infirmary - in Boston, Massachusetts. Their National Provider Identifier (NPI) is 1184882870, 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 Han-ying Chang as a lower-volume ophthalmology provider, treating approximately 352 Medicare beneficiaries and delivering 984 services in the most recent reporting year. That panel size indicates a smaller, more selective practice pattern.