Dr. Sian Liem, OD

With 21 years of practice, Dr. Sian Liem is an established optometry provider, OD, after earning their medical degree at University Of California - School Of Optometry in 1996. Dr. currently practices at Maine Strong Physical Therapy Pa in Scarborough, Maine. Their National Provider Identifier (NPI) is 1275522948, 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. Sian Liem as a lower-volume optometry provider, treating approximately 383 Medicare beneficiaries and delivering 2K services in the most recent reporting year. That panel size indicates a smaller, more selective practice pattern.

Under the Physician Payments Sunshine Act, CMS reports that Dr. Sian Liem received $30 in industry payments in 2023. Payments at this scale are typical for most practicing physicians and generally reflect routine educational activities.