NPPES file of Aug 9, 2026

Wing Shan Tam, RD

Registered Dietitian · Dublin, CA

Wing Shan Tam, RD is a registered dietitian with a practice address in Dublin, California, and NPI 1538381629, issued on May 2, 2007. Check the license (California 949489, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1538381629
Name
Wing Shan Tam
Credential
RD
Primary taxonomy
Registered Dietitian 133V00000X
License numbers
949489 CA
929489 HI
Self-reported in NPPES; status is on the state search
Practice location
4050 Dublin Blvd, Dublin, CA 94568
Phone
(510) 498-2184
Enumerated
May 2, 2007
Record last updated
May 29, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20170224001015); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest registered dietitian records → All 7,148 in California → Look up another NPI →

Also registered at 4050 Dublin Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Mimi Akaba, FNPNurse Practitioner1851472021
  2. Sana Ali, D.O.Family Medicine Physician1396199550
  3. Samira Aliabadi, MDPediatrics Physician1508957887
  4. Elizabeth Ancheta, MDPediatrics Physician1801933775
  5. Amardeep Angroola, M.D.Hospitalist Physician1821253568
  6. Carla Antypas, DOFamily Medicine Physician1063096113

Verify Wing Shan Tam 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 949489    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Sutter Bay Medical FoundationSan Jose, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Wing Shan Tam among 7,148 registered dietitian records in California

Wing Shan Tam, RD is one of 7,148 registered dietitian records with a practice address in California. 5% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 6% of them.

  • NPI issued2007 · 6% of these records are older, 85% newer
  • In a Medicare fileYes · 5% of these records are
  • In the CMS Doctors and Clinicians fileYes · 7% of these records are
  • Graduated2004 · median 2014 among the 529 with a school on file
  • Record last updated2020 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 133V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

11 registered dietitian records list a practice address in Dublin

They are 11 of the 2,148 NPPES records with a practice address in Dublin, and 7,148 registered dietitian records in California.

All 7,148 in California → Every provider in Dublin → Registered Dietitian nationwide →

The 8 registered dietitian records with the nearest ZIP codes

  1. Poppy Anderson, RDDublin, CA 945681841630670
  2. Eliza ChanDublin, CA 945681134294424
  3. Setal Desai, RDNDublin, CA 945681386598878
  4. Zhanglin Kong, MS RDN CDCESDublin, CA 945681952871212
  5. Karen Lush, MPH, RDDublin, CA 945681578652780
  6. Qiancheng PengDublin, CA 945681043168735
  7. Helene Sarwary, RDDublin, CA 945681689555690
  8. Rajinder Singh, RDDublin, CA 945681336330752

Common questions

What is Wing Shan Tam, RD's NPI number?

Wing Shan Tam, RD's National Provider Identifier (NPI) is 1538381629, issued on May 2, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Wing Shan Tam, RD located?

The NPPES record lists a practice address at 4050 Dublin Blvd, Dublin, CA, 94568. Phone: (510) 498-2184. Providers update this record themselves, so call before visiting.

How can I verify Wing Shan Tam, RD's license?

NPPES lists California license number 949489, 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. Medicare files from data.cms.gov. 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.