Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Lillian Sierra, RD

Registered Dietitian in La Mesa, NM · enumerated 2024.

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

National Provider Identifier

1588487136

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Registry record

Entity type Individual (Type 1)

Name Mrs. Lillian Sierra

Credential RD

Sex Female

Practice address 6505 Rio Dorado Dr, La Mesa, NM, 88044

Phone (915) 204-3335

Enumeration date Nov 4, 2024

Last updated in NPPES Nov 4, 2024

Taxonomy & licenses

133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License DT85848 (TX) 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

How do I verify Lillian Sierra's NPI record?

Cross-check NPI 1588487136 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1588487136 active?

Yes, as of the latest NPPES snapshot, NPI 1588487136 is active (record last updated 2024-11-04).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-11-04.