NPPES file of Aug 9, 2026

Tamar Besson, NP

Nurse Practitioner · Redwood City, CA

Tamar Besson, NP is a nurse practitioner with a practice address in Redwood City, California, and NPI 1134287543, issued on Dec 5, 2006. Check the license (California RN504611, 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.

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

NPPES recordNPPES file of Aug 9, 2026
1134287543
Name
Tamar Besson
Credential
NP
Primary taxonomy
Nurse Practitioner 363L00000X
License number
RN504611 CA
Self-reported in NPPES; status is on the state search
Practice location
200 James Ave, Redwood City, CA 94062
Phone
(650) 366-2927
Enumerated
Dec 5, 2006
Record last updated
Jul 8, 2007 (not updated in 19 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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8 nearest nurse practitioner records → All 8,223 in California → Look up another NPI →

Verify Tamar Besson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license RN504611    Check 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
Find the California license search

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Tamar Besson among 8,223 nurse practitioner records in California

Tamar Besson, NP is one of 8,223 nurse practitioner records with a practice address in California. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 2% of them.

  • NPI issued2006 · 2% of these records are older, 82% newer
  • In a Medicare fileNo · 65% of these records are
  • In the CMS Doctors and Clinicians fileNo · 42% of these records are
  • Record last updated2007 · 45% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nurse Practitioner providers in California

There are 8,223 nurse practitioner records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 8,223 in California → Every provider in Redwood City → Nurse Practitioner nationwide →

The 8 nurse practitioner records with the nearest ZIP codes

  1. Megan AtashrooWoodside, CA 940621861821407
  2. Kathleen Berra, N.P.Redwood City, CA 940621386698520
  3. Marjan Hafezi, NPRedwood City, CA 940621679796866
  4. Virginia Morrow, MSN, ANPRedwood City, CA 940621124220413
  5. Jose Rodriguez, PMHNPRedwood City, CA 940621669086641
  6. Judith Sullivan, NPRedwood City, CA 940621144264748
  7. Maria Arellano, NPRedwood City, CA 940611790904738
  8. Allyson Fisch, GNP, RDRedwood City, CA 940631912096942

Common questions

What is Tamar Besson, NP's NPI number?

Tamar Besson, NP's National Provider Identifier (NPI) is 1134287543, issued on Dec 5, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Tamar Besson, NP located?

The NPPES record lists a practice address at 200 James Ave, Redwood City, CA, 94062. Phone: (650) 366-2927. Providers update this record themselves, so call before visiting.

How can I verify Tamar Besson, NP's license?

NPPES lists California license number RN504611, 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.

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.