NPPES file of Aug 9, 2026

Thuong-Phuong Van Arvid Nguyen, M.D.

Psychiatry Physician · Los Alamitos, CA

Thuong-Phuong Van Arvid Nguyen, M.D. is a psychiatry physician with a practice address in Los Alamitos, California, and NPI 1093009565, issued on Jun 2, 2011. Check the license (California A129063, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1093009565
Name
Thuong-Phuong Van Arvid Nguyen
Credential
M.D.
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
A129063 CA
Self-reported in NPPES; status is on the state search
Practice location
5122 Katella Ave Ste 202, Los Alamitos, CA 90720
Phone
(562) 200-0254
Enumerated
Jun 2, 2011
Record last updated
Sep 25, 2024
Fax
(562) 222-7170
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 Thuong-Phuong Van Arvid Nguyen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A129063
    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
Open the California license search

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89% fewer Medicare Part D claims than the average psychiatry physician in 2024

112 Medicare Part D claims for 11 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.

  1. Thuong-Phuong Nguyen112
  2. Specialty average1,000

Most prescribed

  1. Sertraline Hcl13 claims
  2. Buspirone Hcl12 claims
  3. Quetiapine Fumarate11 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Thuong-Phuong Van Arvid Nguyen among 8,673 psychiatry physician records in California

Thuong-Phuong Van Arvid Nguyen, M.D. is one of 8,673 psychiatry physician records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 63% of them.

  • NPI issued2011 · 63% of these records are older, 34% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileNo · 38% of these records are
  • Record last updated2024 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychiatry Physician providers in California

There are 8,673 psychiatry physician records in California.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Clifford Corman, M.D.Los Alamitos, CA 907201427116466
  2. Rhoda Hahn, MDLos Alamitos, CA 907201972609295
  3. Robert Linden, MDLos Alamitos, CA 907201568479749
  4. Steven Mee, M.D.Los Alamitos, CA 907201558371583
  5. Priti Sahgal, M.D.Los Alamitos, CA 907201457507436
  6. Mahlet Girma, MDLomita, CA 907171538588538
  7. Kevin Marsee, M.D.Lomita, CA 907171255574067
  8. Reza Tadayon-Nejad, M.D., PH.DParamount, CA 907231326329012

Common questions

What is Thuong-Phuong Van Arvid Nguyen, M.D.'s NPI number?

Thuong-Phuong Van Arvid Nguyen, M.D.'s National Provider Identifier (NPI) is 1093009565, issued on Jun 2, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Thuong-Phuong Van Arvid Nguyen, M.D. located?

The NPPES record lists a practice address at 5122 Katella Ave Ste 202, Los Alamitos, CA, 90720. Phone: (562) 200-0254. Providers update this record themselves, so call before visiting.

How can I verify Thuong-Phuong Van Arvid Nguyen, M.D.'s license?

NPPES lists California license number A129063, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Thuong-Phuong Van Arvid Nguyen, M.D. prescribe under Medicare Part D?

In 2024, Thuong-Phuong Van Arvid Nguyen, M.D. had 112 Medicare Part D claims for 11 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions 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.

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.