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

SING CHAN

Allopathic & Osteopathic Physicians Internal Medicine Gastroenterology

NPI
1225053523
CMS profile
237207
Location
FLUSHING, NY

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 · PY2024 · Entire year

$1,992.65

102 records · 4 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

PY2024 · entire year · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $1,975.63 101
Education $17.02 1

By paying entity

PY2024 · entire year · sorted by reported total

Payment records · PY2024

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

General Payments · PY2024 · Physicians and non-physician practitioners · CMS publication 2026-06-30

102 matching records · $1,992.65 reported total · 4 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 102 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 102.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Salix Pharmaceuticals, a division of Bausch Health US, LLC $19.9512/23/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261153679540 CMS
IRONWOOD PHARMACEUTICALS, INC $13.2612/20/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261153730947 CMS
Janssen Biotech, Inc. $22.6312/18/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261078425140 CMS
Ardelyx, Inc. $30.2412/13/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261146674482 CMS
Gilead Sciences, Inc. $26.9012/11/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261133774453 CMS
ABBVIE INC. $12.3712/08/2024 Food and Beverage No dispute reported Delay: No
Change: CHANGED
06/30/20261103438326 CMS
PFIZER INC. $26.4212/04/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261131029738 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $24.8312/02/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261153657109 CMS
ABBVIE INC. $16.7111/22/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261103438324 CMS
Intra-Sana Laboratories $5.3011/21/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261138617447 CMS
Ardelyx, Inc. $29.5511/15/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261146674480 CMS
Gilead Sciences, Inc. $25.2011/13/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261133774451 CMS
PFIZER INC. $5.5411/05/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261131148138 CMS
AIMMUNE THERAPEUTICS, INC. $22.5210/31/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261147010736 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $18.8910/31/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261153554217 CMS
Gilead Sciences, Inc. $23.6710/30/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261133774449 CMS
ABBVIE INC. $10.6310/25/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261103438322 CMS
PFIZER INC. $24.6110/09/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261132108967 CMS
Janssen Biotech, Inc. $23.9210/02/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261078424953 CMS
Intra-Sana Laboratories $9.0410/01/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261138617445 CMS
ABBVIE INC. $12.3409/27/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261103438320 CMS
Gilead Sciences, Inc. $8.9109/25/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261133774447 CMS
Ardelyx, Inc. $24.9209/20/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261146674478 CMS
PFIZER INC. $7.8709/19/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261131950268 CMS
Gilead Sciences, Inc. $20.7109/18/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261133774445 CMS
Intra-Sana Laboratories $4.7909/13/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261138617443 CMS
Gilead Sciences, Inc. $22.6609/11/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261133774443 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $29.3709/11/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261153601941 CMS
PFIZER INC. $22.4609/04/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261131967377 CMS
Phathom Pharmaceuticals, Inc. $24.2208/28/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261151047562 CMS
Celltrion USA Inc. $25.4208/21/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261075849447 CMS
Intra-Sana Laboratories $25.4108/16/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261138617441 CMS
Gilead Sciences, Inc. $25.7108/14/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261133774441 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $25.0508/14/2024 Food and Beverage Dispute reported Delay: No
Change: UNCHANGED
06/30/20261153461886 CMS
Ardelyx, Inc. $28.5308/09/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261146674476 CMS
Gilead Sciences, Inc. $23.6108/07/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261133774439 CMS
QOL Medical, LLC $22.9908/02/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261147715919 CMS
PFIZER INC. $24.0607/31/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261131847741 CMS
Intra-Sana Laboratories $6.6407/30/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261138617439 CMS
Gilead Sciences, Inc. $26.0707/24/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261133774437 CMS
ABBVIE INC. $1.9007/19/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261103438316 CMS
ABBVIE INC. $19.8907/19/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261103438318 CMS
Janssen Biotech, Inc. $27.6807/17/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261078424631 CMS
ABBVIE INC. $8.1507/11/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261103438314 CMS
Ardelyx, Inc. $33.2607/11/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261146674474 CMS
Celgene Corporation $23.3007/11/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261101138408 CMS
Gilead Sciences, Inc. $18.8206/26/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261133774435 CMS
ABBVIE INC. $12.3506/21/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261103438308 CMS
ABBVIE INC. $0.5106/21/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261103438310 CMS
ABBVIE INC. $1.5006/21/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261103438312 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $862.17 52
PY2020 $552.15 29
PY2021 $1,168.33 61
PY2022 $1,367.02 62
PY2023 $1,871.11 95
PY2024 $1,992.65 102
PY2025 $2,806.74 128

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
SING CHAN, NPI 1225053523. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1225053523.
APA 7
IndustryPayments. (2026). SING CHAN, NPI 1225053523 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1225053523
Bluebook
SING CHAN, NPI 1225053523, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1225053523.

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