Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marylou Viola, RD, CDE

Registered Dietitian in Danbury, CT · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1063431807

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Registry record

Entity type Individual (Type 1)

Name Marylou Viola

Credential RD, CDE

Sex Female

Practice address 24 Hospital Ave, Danbury, CT, 06810

Phone (203) 797-7119

Enumeration date Jul 19, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License 819461 (CT) Primary

RD · Registered Dietitian: A nutrition professional credentialed by the Commission on Dietetic Registration. About the RD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Marylou Viola practice?

The practice location on file with NPPES is in Danbury, CT. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Marylou Viola?

The National Provider Identifier (NPI) for Marylou Viola is 1063431807, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.