Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Carolina Ysibel Sierra, LN

Nutritionist in Washington, DC · enumerated 2020.

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

National Provider Identifier

1942800180

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Registry record

Entity type Individual (Type 1)

Name Carolina Ysibel Sierra

Credential LN

Sex Female

Practice address 3912 Georgia Ave Nw, Washington, DC, 20011

Phone (202) 729-6838

Enumeration date Oct 27, 2020

Last updated in NPPES Oct 27, 2020

Taxonomy & licenses

133N00000X Nutritionist Dietary & Nutritional Service Providers · License DX5103 (MD) Secondary

133N00000X Nutritionist Dietary & Nutritional Service Providers · License NU10000228 (DC) Primary

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

What is the NPI number for Carolina Sierra?

The National Provider Identifier (NPI) for Carolina Sierra is 1942800180, a Type 1 (individual) record in the CMS NPPES registry.

Where does Carolina Sierra practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-10-27.