Diane Williams
About this NPIWhat this record shows.
NPI 1700728318 is registered to Diane Williams, a Addiction Counselor practising at 15977 Marcella St in Ashland, California. Addiction Counselor is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Diane Williams has been enumerated in the National Provider Identifier (NPI) registry since 2026.
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 Diane Williams accepts. To confirm in-network status with your specific health plan, contact Diane Williams directly at (510) 694-9422.
Frequently asked
Yes. NPI 1700728318 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Addiction Counselor 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) 694-9422.
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. Diane Williams is a Type-1 individual NPI.