NPPES file of Aug 9, 2026

Marcia Sivek, MS

Nutritionist · Los Gatos, CA

Marcia Sivek, MS is a nutritionist with a practice address in Los Gatos, California, and NPI 1114311263, issued on Mar 26, 2015. Check the license with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1114311263
Name
Marcia Sivek
Credential
MS
Primary taxonomy
Nutritionist 133N00000X
Practice location
24375 Glenwood Dr, Los Gatos, CA 95033
Phone
(408) 759-1863
Enumerated
Mar 26, 2015
Record last updated
Mar 26, 2015 (not updated in 11 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Marcia Sivek in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
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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.

All 464 in California → Every provider in Los Gatos →

Other nutritionist records in California

  1. Amanda Abraham, M.S., CHNBerkeley, CA1669267340
  2. Lucy Adams, M.S., C.N.S.Lafayette, CA1750704227
  3. Patricia Adams, BCHNScotts Valley, CA1205595121
  4. Evette Aidinian, MS, CNS, LDNTujunga, CA1750091864
  5. Rick Ajootian, PH.D.Bakersfield, CA1114052263
  6. Elizabeth AkbiyikianFresno, CA1053020917
  7. Ligia Aker, CNSSan Mateo, CA1467394601
  8. Bernadine AlanizEncino, CA1740910165
  9. Lisa Alden, CN, CD, MFASan Francisco, CA1972114338
  10. Carlos Alessandrini, NUTRITIONISTSan Diego, CA1093268021

Common questions

What is Marcia Sivek, MS's NPI number?

Marcia Sivek, MS's National Provider Identifier (NPI) is 1114311263, issued on Mar 26, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Marcia Sivek, MS located?

The NPPES record lists a practice address at 24375 Glenwood Dr, Los Gatos, CA, 95033. Phone: (408) 759-1863. Providers update this record themselves, so call before visiting.

How can I verify Marcia Sivek, MS's license?

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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.