Crystal Sin Yi Cheung
About this NPIWhat this record shows.
NPI 1861979833 is registered to Crystal Sin Yi Cheung, a Pediatric Ophthalmology and Strabismus Specialist Physician practising at 300 Longwood Ave # Fegan4 in Boston, Massachusetts. Pediatric Ophthalmology and Strabismus Specialist Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Crystal Sin Yi Cheung has been enumerated in the National Provider Identifier (NPI) registry since 2018.
Insurance & acceptsHow to confirm coverage.
The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Crystal Sin Yi Cheung accepts. To confirm in-network status with your specific health plan, contact Crystal Sin Yi Cheung directly at (857) 472-2148.
Frequently asked
Yes. NPI 1861979833 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Pediatric Ophthalmology and Strabismus Specialist Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy.
The CMS NPPES Public Registry at npiregistry.cms.hhs.gov is the authoritative source. FindMyNPI mirrors this dataset and refreshes monthly. For real-time verification, you can also call the provider's office at (857) 472-2148.
An individual healthcare provider has a single Type-1 NPI for life. Organisations can hold separate Type-2 NPIs per location, specialty, or sub-entity. Crystal Sin Yi Cheung is a Type-1 individual NPI.