IndividualActive
Sierra Siemers, RDN
NPI 1982559639 · Nutritionist · Long Beach, CA
Sierra Siemers, RDN is a Nutritionist provider in Long Beach, CA (NPI 1982559639).
Provider details
- NPI number
- 1982559639
- Entity type
- Individual
- Primary specialty
- NutritionistDietary & Nutritional Service Providers
- Credential
- RDN
- Sex
- Female
- Sole proprietor
- No
- License
- 86290484 (CA)
Specialties & taxonomies
Dietary & Nutritional Service Providers
Profile Score
Established profile(53/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
2776 Pacific Ave
Long Beach, CA 90806-2613
Phone: (562) 997-2000
Street-level locationGet directions
Mailing address
8102 Marseille Dr
Huntington Beach, CA 92647-6018
Registry dates
- Enumerated
- 2026-02-27
- Last updated
- 2026-02-27
- Certified
- 2026-02-27
Frequently asked questions
- What is Sierra Siemers's NPI number?
- Sierra Siemers's National Provider Identifier (NPI) is 1982559639, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sierra Siemers's specialty?
- Sierra Siemers is listed in the NPPES registry with a primary specialty of Nutritionist (Dietary & Nutritional Service Providers).
- Where is Sierra Siemers located?
- Sierra Siemers's practice location on file with NPPES is 2776 Pacific Ave, Long Beach, CA 90806-2613.
- What is Sierra Siemers's phone number?
- The practice phone number listed in the NPPES registry for Sierra Siemers is (562) 997-2000.
- Is Sierra Siemers's NPI active?
- Yes — Sierra Siemers's NPI (1982559639) is active in the NPPES registry as of the last update on 2026-02-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.