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.

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General Payments · PY2020 · Entire year

$76,705.14

171 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

PY2020 · entire year · sorted by reported total

By paying entity

PY2020 · entire year · sorted by reported total

Paying entityAmountRecords
Otsuka America Pharmaceutical, Inc. $73,774.30 137
ITI, Inc. $2,528.91 6
Sunovion Pharmaceuticals Inc. $176.50 13
Allergan, Inc. $168.17 13
Noven Pharmaceuticals, Inc. $38.80 1
Noven Therapeutics, LLC $18.46 1

Payment records · PY2020

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

General Payments · PY2020 · Physicians and non-physician practitioners · CMS publication 2026-06-30

171 matching records · $76,705.14 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 171 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 171.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Otsuka America Pharmaceutical, Inc. $1,296.0012/23/2020 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
06/30/2026748765015 CMS
Otsuka America Pharmaceutical, Inc. $1,296.0012/23/2020 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
06/30/2026748765019 CMS
Otsuka America Pharmaceutical, Inc. $1,296.0012/11/2020 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
06/30/2026748765011 CMS
Allergan, Inc. $7.9612/04/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026723843865 CMS
ITI, Inc. $1,000.0012/01/2020 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
06/30/2026750035475 CMS
Sunovion Pharmaceuticals Inc. $37.3111/18/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026748587493 CMS
Otsuka America Pharmaceutical, Inc. $1,296.0011/13/2020 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026748765003 CMS
Otsuka America Pharmaceutical, Inc. $22.7211/13/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026748765007 CMS
Otsuka America Pharmaceutical, Inc. $1,296.0011/12/2020 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026748764999 CMS
Allergan, Inc. $6.3011/06/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026723843861 CMS
Allergan, Inc. $9.2011/06/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026723843863 CMS
Noven Pharmaceuticals, Inc. $38.8011/06/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026743838609 CMS
Otsuka America Pharmaceutical, Inc. $1,296.0010/30/2020 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026748764995 CMS
Sunovion Pharmaceuticals Inc. $25.5510/30/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026748587489 CMS
ITI, Inc. $1,500.0010/27/2020 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
06/30/2026750035473 CMS
ITI, Inc. $5.8110/16/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026750035471 CMS
Noven Therapeutics, LLC $18.4610/16/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026743839349 CMS
Otsuka America Pharmaceutical, Inc. $1,296.0010/16/2020 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026748764991 CMS
Sunovion Pharmaceuticals Inc. $24.1210/16/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026748587485 CMS
ITI, Inc. $6.7310/09/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026750035469 CMS
ITI, Inc. $6.7610/02/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026750035467 CMS
Otsuka America Pharmaceutical, Inc. $6.6709/25/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026748764987 CMS
Allergan, Inc. $16.5609/18/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026723843859 CMS
Sunovion Pharmaceuticals Inc. $9.4109/18/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026748587475 CMS
Otsuka America Pharmaceutical, Inc. $9.0009/11/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026748764983 CMS
Otsuka America Pharmaceutical, Inc. $15.2809/10/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026748764979 CMS
Sunovion Pharmaceuticals Inc. $5.5509/04/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026748587463 CMS
ITI, Inc. $9.6108/21/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026750035465 CMS
Otsuka America Pharmaceutical, Inc. $2,764.0008/21/2020 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
06/30/2026748764975 CMS
Otsuka America Pharmaceutical, Inc. $1,296.0008/19/2020 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026748764971 CMS
Allergan, Inc. $9.9208/15/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026723843857 CMS
Allergan, Inc. $24.0008/07/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026723843855 CMS
Otsuka America Pharmaceutical, Inc. $351.0008/05/2020 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
06/30/2026748764963 CMS
Otsuka America Pharmaceutical, Inc. $351.0008/05/2020 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
06/30/2026748764967 CMS
Allergan, Inc. $4.1706/27/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026723843853 CMS
Allergan, Inc. $13.9106/05/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026723843851 CMS
Sunovion Pharmaceuticals Inc. $20.4005/15/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026748587483 CMS
Allergan, Inc. $23.1705/01/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026723843847 CMS
Allergan, Inc. $23.1705/01/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026723843849 CMS
Sunovion Pharmaceuticals Inc. $9.4005/01/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026748587471 CMS
Otsuka America Pharmaceutical, Inc. $9.5004/22/2020 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026748764947 CMS
Otsuka America Pharmaceutical, Inc. $4.0004/22/2020 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026748764951 CMS
Otsuka America Pharmaceutical, Inc. $143.1604/22/2020 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026748764955 CMS
Otsuka America Pharmaceutical, Inc. $50.0004/22/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026748764959 CMS
Otsuka America Pharmaceutical, Inc. $351.0004/17/2020 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
06/30/2026748764943 CMS
Sunovion Pharmaceuticals Inc. $20.0404/17/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026748587479 CMS
Otsuka America Pharmaceutical, Inc. $2,668.0004/15/2020 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
06/30/2026748764935 CMS
Otsuka America Pharmaceutical, Inc. $2,668.0004/15/2020 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
06/30/2026748764939 CMS
Allergan, Inc. $19.2604/10/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026723843845 CMS
Otsuka America Pharmaceutical, Inc. $40.0004/01/2020 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026748764905 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.