Diana Toumah Rdn
About this NPIWhat this record shows.
NPI 1003603697 is registered to Diana Toumah Rdn, a Registered Dietitian practising at 7209 Marysville Pl in Fontana, California. Registered Dietitian is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Diana Toumah Rdn has been enumerated in the National Provider Identifier (NPI) registry since 2025.
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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 Diana Toumah Rdn accepts. To confirm in-network status with your specific health plan, contact Diana Toumah Rdn directly at (909) 215-5797.
Frequently asked
Yes. NPI 1003603697 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Registered Dietitian 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 (909) 215-5797.
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. Diana Toumah Rdn is a Type-1 individual NPI.