Grace Kowalski RN
About this NPIWhat this record shows.
NPI 1164213898 is registered to Grace Kowalski RN, a Addiction (Substance Use Disorder) Registered Nurse practising at 275 Ne 10th Ave in Oak Harbor, Washington. Addiction (Substance Use Disorder) Registered Nurse is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Grace Kowalski RN has been enumerated in the National Provider Identifier (NPI) registry since 2025.
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 Grace Kowalski RN accepts. To confirm in-network status with your specific health plan, contact Grace Kowalski RN directly at (360) 499-7011.
Frequently asked
Yes. NPI 1164213898 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Addiction (Substance Use Disorder) 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 (360) 499-7011.
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. Grace Kowalski RN is a Type-1 individual NPI.