William Seijas Ccrn-Cmc
About this NPIWhat this record shows.
NPI 1679465835 is registered to William Seijas Ccrn-Cmc, a Critical Care Medicine Registered Nurse practising at 703 Main St in Paterson, New Jersey. Critical Care Medicine Registered Nurse is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. William Seijas Ccrn-Cmc has been enumerated in the National Provider Identifier (NPI) registry since 2025.
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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 William Seijas Ccrn-Cmc accepts. To confirm in-network status with your specific health plan, contact William Seijas Ccrn-Cmc directly at (973) 754-2000.
Frequently asked
Yes. NPI 1679465835 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Critical Care Medicine Registered Nurse 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 (973) 754-2000.
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. William Seijas Ccrn-Cmc is a Type-1 individual NPI.