Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · CMS publication 2026-06-30 View official record

Covered recipient · General Payments record

CHARLES TUAN-TU S NGUYEN

Allopathic & Osteopathic Physicians Psychiatry & Neurology Psychiatry

NPI
1942380118
CMS profile
42595
Location
IRVINE, CA

A name match is not confirmation of identity. CMS publishes records for different people under similar names; the NPI, specialty, and location shown on this page are the CMS-published fields that distinguish them.

Saved items

Saved only in this browser. No account or alerts.

Filter and download payment records

General Payments · PY2023 · Entire year

$430,137.56

551 records · 0 disputed

Summary and payment records

  • CMS publication 2026-06-30
Read the payment records

“Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.”

— Centers for Medicare & Medicaid Services, Open Payments

A reported payment reflects a financial relationship a company disclosed. It does not indicate wrongdoing or a conflict of interest, and it says nothing about the quality of a provider's care.

These records are submitted to CMS and attested to by the reporting companies. CMS publishes them as reported; this site mirrors them without independent verification.

A payment attributed to a provider may have been made to a third party — a hospital, practice, or research institution — rather than paid to the provider personally.

How these totals are calculated
  • This total is the sum of the individual General Payments record amounts CMS published for the labeled program year(s); each record amount is used unmodified. The total itself is computed by this site. Nothing is estimated, weighted, or combined across categories.
  • General Payments only. Research and Ownership/Investment are separate datasets and are never summed with these figures; amounts are kept separate per program year.
  • Methodology & Data — sourcing, labeling, and limitations.

Provider summaries generated . CMS updates this data on an annual cycle, and corrections or successful disputes made at CMS may not yet appear here. The official CMS record is authoritative for the current state. View the official CMS record ↗

By nature of payment

PY2023 · entire year · sorted by reported total

By paying entity

PY2023 · entire year · sorted by reported total

Payment records · PY2023

Ordering applied by this site (date, newest first, then paying entity) · record values are shown as CMS published them

General Payments · PY2023 · Physicians and non-physician practitioners · CMS publication 2026-06-30

551 matching records · $430,137.56 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 551 matching records (CSV)

CSV includes CMS record IDs, source and publication dates, the data edition, and a link to these filters. Formula-like text cells are prefixed with an apostrophe for spreadsheet safety.

Showing records 1–50 of 551.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
ITI, Inc. $5.4412/21/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261040640426 CMS
Otsuka America Pharmaceutical, Inc. $35.0012/13/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014631915 CMS
Otsuka America Pharmaceutical, Inc. $6.0012/13/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014631927 CMS
Otsuka America Pharmaceutical, Inc. $5.0012/13/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014631939 CMS
Otsuka America Pharmaceutical, Inc. $9.2412/13/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014631951 CMS
Otsuka America Pharmaceutical, Inc. $15.7212/13/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014631963 CMS
Neurocrine Biosciences, Inc. $8.7812/06/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261052106605 CMS
ITI, Inc. $4,320.0012/05/2023 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/20261040640403 CMS
ITI, Inc. $99.0312/05/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261040640411 CMS
ITI, Inc. $132.6612/05/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261040640417 CMS
ITI, Inc. $7,560.0012/02/2023 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/20261040640397 CMS
ITI, Inc. $64.1912/01/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261061153517 CMS
ITI, Inc. $183.0012/01/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261061153519 CMS
ITI, Inc. $5.0012/01/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261061153521 CMS
ITI, Inc. $52.4312/01/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261061153523 CMS
ITI, Inc. $440.2012/01/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261061153525 CMS
ITI, Inc. $141.0412/01/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261061153527 CMS
ITI, Inc. $48.4912/01/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261061153529 CMS
ITI, Inc. $46.0412/01/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261061153531 CMS
ITI, Inc. $33.6712/01/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261061153533 CMS
ITI, Inc. $26.9412/01/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261061153535 CMS
ITI, Inc. $367.0911/30/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261040640391 CMS
Neurocrine Biosciences, Inc. $1,500.0011/10/2023 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/20261052106609 CMS
Neurocrine Biosciences, Inc. $118.9711/07/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261052106645 CMS
Neurocrine Biosciences, Inc. $3,500.0011/07/2023 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/20261052106649 CMS
Alkermes, Inc. $18.3811/03/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261022883571 CMS
Indivior Inc. $28.9510/27/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261034252729 CMS
Alkermes, Inc. $12.8410/25/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261022883569 CMS
Neurocrine Biosciences, Inc. $2,000.0010/23/2023 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/20261052106733 CMS
ITI, Inc. $540.0010/21/2023 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/20261040640381 CMS
ITI, Inc. $540.0010/20/2023 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/20261040640375 CMS
Otsuka America Pharmaceutical, Inc. $4,104.0010/13/2023 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014631903 CMS
Otsuka America Pharmaceutical, Inc. $2,160.0010/11/2023 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014631789 CMS
Otsuka America Pharmaceutical, Inc. $23.9510/11/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014631799 CMS
Otsuka America Pharmaceutical, Inc. $29.9710/11/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014631811 CMS
Otsuka America Pharmaceutical, Inc. $35.0010/11/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014631823 CMS
Otsuka America Pharmaceutical, Inc. $5.0010/11/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014631833 CMS
Otsuka America Pharmaceutical, Inc. $8.6710/11/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014631845 CMS
Otsuka America Pharmaceutical, Inc. $15.7210/11/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014631855 CMS
Otsuka America Pharmaceutical, Inc. $12.0010/11/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014631869 CMS
Otsuka America Pharmaceutical, Inc. $9.0010/11/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014631883 CMS
Otsuka America Pharmaceutical, Inc. $70.0910/11/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014631891 CMS
ITI, Inc. $2.1510/05/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261040640365 CMS
Otsuka America Pharmaceutical, Inc. $4,752.0010/04/2023 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014631777 CMS
Lundbeck LLC $16.6809/30/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261032300083 CMS
Alkermes, Inc. $5.9209/29/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261022883567 CMS
ITI, Inc. $2.5509/29/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261040640359 CMS
ITI, Inc. $2,700.0009/28/2023 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/20261040640299 CMS
ITI, Inc. $84.4509/28/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261040640309 CMS
ITI, Inc. $133.2709/28/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261040640313 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $169,814.27 357
PY2020 $76,705.14 171
PY2021 $104,823.77 147
PY2022 $260,718.35 392
PY2023 $430,137.56 551
PY2024 $513,937.50 640
PY2025 $580,474.15 715

Source & provenance

Dataset
CMS Open Payments — General Payments
Publisher of source data
Centers for Medicare & Medicaid Services
CMS publication date
2026-06-30
Program years on this page
2019, 2020, 2021, 2022, 2023, 2024, 2025
Source files and profile matching
Generated from
OP_DTL_GNRL_PGYR2025_P06302026_06032026.csv

One page per canonical provider; split Profile_IDs are merged via Associated_Covered_Recipient_Profile_ID_1/_2 from the Covered Recipient Profile Supplement.

Corrections to the substance of a record route to CMS through its review-and-dispute process; errors in how this site mirrors or displays a record route to us. Both paths are described in Methodology & Data.

Cite this record.

Plain
CHARLES TUAN-TU S NGUYEN, NPI 1942380118. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1942380118.
APA 7
IndustryPayments. (2026). CHARLES TUAN-TU S NGUYEN, NPI 1942380118 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1942380118
Bluebook
CHARLES TUAN-TU S NGUYEN, NPI 1942380118, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1942380118.

Source: Centers for Medicare & Medicaid Services, Open Payments.