Sylvia Chang
Also known as
- Formerly known asZhang, Lou
Source: NPPES public registry.
About this NPIWhat this record shows.
NPI 1053843458 is registered to Sylvia Chang, a Ophthalmology Physician practising at 9170 Haven Ave Ste 102 in Rancho Cucamonga, California. Ophthalmology Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Sylvia Chang has been enumerated in the National Provider Identifier (NPI) registry since 2017.
Your brand here.
Medicare enrollment
This provider holds a Medicare enrollment on file with the Provider Enrollment, Chain and Ownership System (PECOS). Each enrollment carries a public Medicare Enrollment ID (ENRLMT_ID) used by billers and intermediaries.
Practitioner
- I20231010002001OphthalmologyCA
Source: CMS PECOS public enrollment file.
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 Sylvia Chang accepts. To confirm in-network status with your specific health plan, contact Sylvia Chang directly at (909) 440-1014.
Frequently asked
Yes. NPI 1053843458 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Ophthalmology 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 (909) 440-1014.
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. Sylvia Chang is a Type-1 individual NPI.