Karen Kastein R.N.
About this NPIWhat this record shows.
NPI 1932650488 is registered to Karen Kastein R.N., a Addiction (Substance Use Disorder) Registered Nurse practising at 10850 Macarthur Blvd Ste 200 in Oakland, California. Addiction (Substance Use Disorder) Registered Nurse is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Karen Kastein R.N. has been enumerated in the National Provider Identifier (NPI) registry since 2016.
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 Karen Kastein R.N. accepts. To confirm in-network status with your specific health plan, contact Karen Kastein R.N. directly at (510) 875-2300.
Frequently asked
Yes. NPI 1932650488 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 (510) 875-2300.
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. Karen Kastein R.N. is a Type-1 individual NPI.