Cheng-Yang Tuan MD
About this NPIWhat this record shows.
NPI 1891746129 is registered to Cheng-Yang Tuan MD, a Endocrinology, Diabetes & Metabolism Physician practising at 1580 Valencia St, Ste 102 in San Francisco, California. Endocrinology, Diabetes & Metabolism Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Cheng-Yang Tuan MD has been enumerated in the National Provider Identifier (NPI) registry since 2006.
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
- I20060818000350EndocrinologyCA
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 Cheng-Yang Tuan MD accepts. To confirm in-network status with your specific health plan, contact Cheng-Yang Tuan MD directly at (415) 695-7661.
Frequently asked
Yes. NPI 1891746129 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Endocrinology, Diabetes & Metabolism 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 (415) 695-7661.
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. Cheng-Yang Tuan MD is a Type-1 individual NPI.