Gwin Stewart PH.D., Casac
About this NPIWhat this record shows.
NPI 1073706008 is registered to Gwin Stewart PH.D., Casac, a Addiction (Substance Use Disorder) Psychologist practising at 425 Marshall Ave in Saint Louis, Missouri. Addiction (Substance Use Disorder) Psychologist is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Gwin Stewart PH.D., Casac has been enumerated in the National Provider Identifier (NPI) registry since 2007.
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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 Gwin Stewart PH.D., Casac accepts. To confirm in-network status with your specific health plan, contact Gwin Stewart PH.D., Casac directly at (314) 724-0503.
Frequently asked
Yes. NPI 1073706008 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) Psychologist 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 (314) 724-0503.
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. Gwin Stewart PH.D., Casac is a Type-1 individual NPI.