Sierra Brook Siemers, RDN
Nutritionist · Long Beach, CA
Sierra Brook Siemers, RDN is a nutritionist with a practice address in Long Beach, California, and NPI 1982559639, issued on Feb 27, 2026. Check the license (California 86290484, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Sierra Brook Siemers
- Credential
- RDN
- Primary taxonomy
- Nutritionist 133N00000X
- License number
- 86290484 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2776 Pacific Ave, Long Beach, CA 90806
- Phone
- (562) 997-2000
- Enumerated
- Feb 27, 2026
- Record last updated
- Feb 27, 2026
- Entity
- Type 1 · individual
Also registered at 2776 Pacific Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Gary Abrahams, RNRegistered Nurse1962179606
- Charles Acholonu, MDPsychiatry Physician1649016312
- Paul Aguiar, CRNACertified Registered Nurse Anesthetist1154421956
- John Alford, R.PH.Pharmacist1942636949
- Parvataneni Arun, M.D.Cardiovascular Disease Physician1538111547
- Christara Avaness, DOFamily Medicine Physician1629555628
Verify Sierra Brook Siemers in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 86290484Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Nutritionist providers in California
There are 464 nutritionist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other nutritionist records in California
- Amanda Abraham, M.S., CHNBerkeley, CA1669267340
- Lucy Adams, M.S., C.N.S.Lafayette, CA1750704227
- Patricia Adams, BCHNScotts Valley, CA1205595121
- Evette Aidinian, MS, CNS, LDNTujunga, CA1750091864
- Rick Ajootian, PH.D.Bakersfield, CA1114052263
- Elizabeth AkbiyikianFresno, CA1053020917
- Ligia Aker, CNSSan Mateo, CA1467394601
- Bernadine AlanizEncino, CA1740910165
- Lisa Alden, CN, CD, MFASan Francisco, CA1972114338
- Carlos Alessandrini, NUTRITIONISTSan Diego, CA1093268021
Common questions
What is Sierra Brook Siemers, RDN's NPI number?
Sierra Brook Siemers, RDN's National Provider Identifier (NPI) is 1982559639, issued on Feb 27, 2026. An NPI identifies a provider in billing; it is not a license.
Where is Sierra Brook Siemers, RDN located?
The NPPES record lists a practice address at 2776 Pacific Ave, Long Beach, CA, 90806. Phone: (562) 997-2000. Providers update this record themselves, so call before visiting.
How can I verify Sierra Brook Siemers, RDN's license?
NPPES lists California license number 86290484, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.