Rena Kassak
About this NPIWhat this record shows.
NPI 1689518136 is registered to Rena Kassak, a Family Nurse Practitioner practising at 211 E 51st St in New York, New York. Family Nurse Practitioner is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Rena Kassak has been enumerated in the National Provider Identifier (NPI) registry since 2026.
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 Rena Kassak accepts. To confirm in-network status with your specific health plan, contact Rena Kassak directly at (212) 398-1709.
Frequently asked
Yes. NPI 1689518136 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Family Nurse Practitioner 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 (212) 398-1709.
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. Rena Kassak is a Type-1 individual NPI.