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

LONG HUYNH-DUC

Allopathic & Osteopathic Physicians Internal Medicine Rheumatology

NPI
1447572169
CMS profile
201213
Location
GREENVILLE, SC

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 · PY2021 · Entire year

$43,155.04

219 records · 0 disputed

Summary and payment records

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

Other CMS categories — not shown on this page

Research Payments

CMS also publishes Research Payments as a separate dataset. This site does not currently mirror it, and no research figure is shown on this page. This provider appears in that dataset.

“If you are a physician who served as a principal investigator on a research study, you may see the payments associated with that research study listed under your name. This does not necessarily mean the payments are attributed to you. The dollar amount of the record corresponds to the total payment; the amounts are not attributed to each individual on the record.”

— Centers for Medicare & Medicaid Services, Open Payments Frequently Asked Questions, FAQ #12224

These records are published by CMS and can be viewed on this provider’s official CMS record. View this provider on CMS Open Payments ↗

“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

PY2021 · entire year · sorted by reported total

By paying entity

PY2021 · entire year · sorted by reported total

Page 1 of 5; records 1–50 of 219 matching records. This page contains 50 records (maximum 50), not the full filtered export. Use the CSV download for all matching records.

IndustryPayments · General Payments

LONG HUYNH-DUC

NPI 1447572169 · CMS profile ID 201213

Allopathic & Osteopathic Physicians / Internal Medicine / Rheumatology

GREENVILLE, SC

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.

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.

General Payments, PY2021; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types

Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00

Page 1 of 5; records 1–50 of 219 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1447572169?year=2021&recipient=provider#records-h

CMS source: https://openpaymentsdata.cms.gov/dataset/0380bbeb-aea1-58b6-b708-829f92a48202

Cite these filtered records

The citation includes this program year, filters, data edition, and page of results.

Plain
LONG HUYNH-DUC, NPI 1447572169, CMS profile ID 201213. General Payments, PY2021; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types. Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00. Page 1 of 5; records 1–50 of 219 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1447572169?year=2021&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/0380bbeb-aea1-58b6-b708-829f92a48202.
APA 7
IndustryPayments. (2026). LONG HUYNH-DUC, NPI 1447572169, CMS profile ID 201213. General Payments, PY2021; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types. Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00. Page 1 of 5; records 1–50 of 219 matching records. This page contains 50 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1447572169?year=2021&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/0380bbeb-aea1-58b6-b708-829f92a48202.
Bluebook
LONG HUYNH-DUC, NPI 1447572169, CMS profile ID 201213, IndustryPayments, General Payments, PY2021; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types (Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00). Page 1 of 5; records 1–50 of 219 matching records. This page contains 50 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/0380bbeb-aea1-58b6-b708-829f92a48202. https://industrypayments.org/provider/npi-1447572169?year=2021&recipient=provider#records-h.

Centers for Medicare & Medicaid Services, Open Payments

Citation formats are provided for reference; check the requirements of your publication.

Payment records · PY2021

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

General Payments · PY2021 · Physicians and non-physician practitioners · CMS publication 2026-06-30

219 matching records · $43,155.04 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 219 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 219.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Janssen Biotech, Inc. $14.2812/27/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 788249561 CMS
Mallinckrodt Hospital Products Inc. $31.2812/23/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 845360845 CMS
Horizon Therapeutics plc $14.9312/20/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 797151453 CMS
Bioventus LLC $15.4112/19/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 838637591 CMS
Janssen Biotech, Inc. $14.4512/17/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 788249559 CMS
AbbVie Inc. $25.2312/16/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 794902103 CMS
UCB, Inc. $16.8012/15/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 807323331 CMS
Amgen Inc. $2.5912/14/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 825560259 CMS
UCB, Inc. $17.6512/13/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 807424879 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $20.4412/09/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 763577518 CMS
Alexion Pharmaceuticals, Inc. $12.6812/08/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 783117603 CMS
Lilly USA, LLC $212.8012/08/2021 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 818584359 CMS
Janssen Biotech, Inc. $13.4612/03/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 788249551 CMS
AstraZeneca Pharmaceuticals LP $16.2012/02/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 829820811 CMS
Amgen Inc. $17.4312/01/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 825560167 CMS
Amgen Inc. $24.8111/30/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 825560255 CMS
Amgen Inc. $31.0511/29/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 825560215 CMS
Abbott Laboratories $25.5611/26/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 815863719 CMS
Lilly USA, LLC $1,800.0011/22/2021 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
06/30/2026 818584357 CMS
Lilly USA, LLC $1,575.0011/22/2021 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
06/30/2026 818660669 CMS
Horizon Therapeutics plc $21.2011/18/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 797151451 CMS
Lilly USA, LLC $68.2411/18/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 818660657 CMS
Actelion Pharmaceuticals US, Inc. $14.3011/17/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 788249567 CMS
Amgen Inc. $2,125.0011/17/2021 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
06/30/2026 826382793 CMS
Mallinckrodt Hospital Products Inc. $24.9511/16/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 845360843 CMS
E.R. Squibb & Sons, L.L.C. $22.2311/15/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 783473049 CMS
Janssen Biotech, Inc. $15.2311/12/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 788249535 CMS
Amgen Inc. $14.0111/11/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 825560143 CMS
AbbVie Inc. $20.7611/10/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 794902099 CMS
Horizon Therapeutics plc $13.6011/10/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 797151449 CMS
UCB, Inc. $21.5211/08/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 807464915 CMS
AstraZeneca Pharmaceuticals LP $950.0011/07/2021 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
06/30/2026 829889873 CMS
UCB, Inc. $15.7711/04/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 807463199 CMS
GlaxoSmithKline, LLC. $18.3711/03/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 802571117 CMS
PFIZER INC. $18.6911/02/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 833231285 CMS
Janssen Biotech, Inc. $1.9011/01/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 788249547 CMS
Organon LLC $14.1510/29/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 837237079 CMS
Amgen Inc. $24.4310/28/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 825560211 CMS
GENZYME CORPORATION $14.8010/27/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 843746655 CMS
Amgen Inc. $17.4010/26/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 825560163 CMS
Amgen Inc. $15.1810/25/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 825560251 CMS
Janssen Biotech, Inc. $1.8610/21/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 788249545 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $22.1210/18/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 763577520 CMS
Amgen Inc. $2,125.0010/15/2021 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
06/30/2026 826382791 CMS
Janssen Biotech, Inc. $15.7210/15/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 788249541 CMS
Janssen Biotech, Inc. $5.0010/15/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 788249543 CMS
AstraZeneca Pharmaceuticals LP $950.0010/14/2021 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
06/30/2026 829877385 CMS
Genentech USA, Inc. $17.5910/14/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 835942227 CMS
Amgen Inc. $13.7110/13/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 825560139 CMS
Aurinia Pharma U.S., Inc. $12.2710/12/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 841400965 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $143,537.61 437
PY2020 $36,275.17 221
PY2021 $43,155.04 219
PY2022 $30,691.06 235
PY2023 $14,172.63 249
PY2024 $6,309.64 189
PY2025 $3,892.49 189

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.