John Marquez
About this NPIWhat this record shows.
NPI 1669112355 is registered to John Marquez, a Licensed Practical Nurse practising at 2646 Union Blvd in Islip, New York. Licensed Practical Nurse is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. John Marquez has been enumerated in the National Provider Identifier (NPI) registry since 2022.
Secondary identifiers
Additional identifiers this provider has registered with NPPES. Used by medical billers, credentialers, and insurance verifiers to cross-reference claims and enrollments.
Medicaid
Source: NPPES public registry.
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 John Marquez accepts. To confirm in-network status with your specific health plan, contact John Marquez directly at (631) 383-8373.
Frequently asked
Yes. NPI 1669112355 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Licensed Practical 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 (631) 383-8373.
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. John Marquez is a Type-1 individual NPI.