Cy Stein MD
About this NPIWhat this record shows.
NPI 1871673350 is registered to Cy Stein MD, a Medical Oncology Physician practising at 1500 Duarte Rd, City Of Hope - Medical Oncology Bldg 51 in Duarte, California. Medical Oncology Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Cy Stein MD has been enumerated in the National Provider Identifier (NPI) registry since 2006.
Your brand here.
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 Cy Stein MD accepts. To confirm in-network status with your specific health plan, contact Cy Stein MD directly at (626) 471-3890.
Frequently asked
Yes. NPI 1871673350 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Medical Oncology 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 (626) 471-3890.
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. Cy Stein MD is a Type-1 individual NPI.