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About this NPIWhat this record shows.
NPI 1447424908 is registered to Gerald L Tarder, MD A Professional Corporation, a healthcare organisation classified as "Gastroenterology" and located at 130 La Casa Via B2 107 in Walnut Creek, California. The organisation's authorised official is Gerald Tarder. The organisation has been enumerated in the NPI registry since 2008.
Provider type
Organisation (Type 2)
Status
Active
Enumerated
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The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Gerald L Tarder, MD A Professional Corporation accepts. To confirm in-network status with your specific health plan, contact Gerald L Tarder, MD A Professional Corporation directly at (925) 938-6060.
Frequently asked
Yes. NPI 1447424908 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Gastroenterology 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 (925) 938-6060.
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. Gerald L Tarder, MD A Professional Corporation is a Type-2 organisational NPI.
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