Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Sierra Brook Siemers, RDN
Nutritionist in Long Beach, CA · enumerated 2026.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1982559639
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Registry record
Entity type Individual (Type 1)
Name Sierra Brook Siemers
Credential RDN
Sex Female
Practice address 2776 Pacific Ave, Long Beach, CA, 90806
Phone (562) 997-2000
Enumeration date Feb 27, 2026
Last updated in NPPES Feb 27, 2026
Taxonomy & licenses
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.
Frequently asked questions
Where does Sierra Siemers practice?
The practice location on file with NPPES is in Long Beach, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Sierra Siemers?
The National Provider Identifier (NPI) for Sierra Siemers is 1982559639, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-27.