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

TONG JOO GAN

Allopathic & Osteopathic Physicians Anesthesiology

NPI
1598849408
CMS profile
118043
Location
HOUSTON, TX

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 · PY2019 · Entire year

$189,016.88

137 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

PY2019 · entire year · sorted by reported total

By paying entity

PY2019 · entire year · sorted by reported total

Paying entityAmountRecords
Covidien LP $40,112.34 17
Edwards Lifesciences Corporation $31,760.75 10
AcelRx Pharmaceuticals, Inc. $30,795.88 27
Merck Sharp & Dohme Corporation $30,616.52 26
Mallinckrodt Enterprises LLC $29,452.45 19
Fresenius Kabi USA, LLC $13,281.82 19
Masimo Corporation $7,226.62 7
Heron Therapeutics, Inc. $3,270.50 11
Shionogi Inc $2,500.00 1

Page 1 of 3; records 1–50 of 137 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

TONG JOO GAN

NPI 1598849408 · CMS profile ID 118043

Allopathic & Osteopathic Physicians / Anesthesiology

HOUSTON, TX

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, PY2019; 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 3; records 1–50 of 137 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1598849408?year=2019&recipient=provider#records-h

CMS source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e

Cite these filtered records

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

Plain
TONG JOO GAN, NPI 1598849408, CMS profile ID 118043. General Payments, PY2019; 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 3; records 1–50 of 137 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1598849408?year=2019&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e.
APA 7
IndustryPayments. (2026). TONG JOO GAN, NPI 1598849408, CMS profile ID 118043. General Payments, PY2019; 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 3; records 1–50 of 137 matching records. This page contains 50 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1598849408?year=2019&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e.
Bluebook
TONG JOO GAN, NPI 1598849408, CMS profile ID 118043, IndustryPayments, General Payments, PY2019; 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 3; records 1–50 of 137 matching records. This page contains 50 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e. https://industrypayments.org/provider/npi-1598849408?year=2019&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 · PY2019

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

General Payments · PY2019 · Physicians and non-physician practitioners · CMS publication 2026-06-30

137 matching records · $189,016.88 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 137 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 137.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
AcelRx Pharmaceuticals, Inc. $2,500.0012/12/2019 Honoraria No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 703450333 CMS
AcelRx Pharmaceuticals, Inc. $1,500.0012/12/2019 Honoraria No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 703450335 CMS
AcelRx Pharmaceuticals, Inc. $266.3712/12/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 703450337 CMS
AcelRx Pharmaceuticals, Inc. $10.0012/12/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 703450339 CMS
AcelRx Pharmaceuticals, Inc. $926.3612/12/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 703450341 CMS
AcelRx Pharmaceuticals, Inc. $1,026.1112/12/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 703450343 CMS
Covidien LP $5,200.0011/18/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 636971165 CMS
Merck Sharp & Dohme Corporation $597.9011/15/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 695829159 CMS
Covidien LP $100.0911/08/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 636971139 CMS
Covidien LP $675.3611/04/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 653634227 CMS
Covidien LP $3,600.0011/04/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 653634229 CMS
Covidien LP $351.8911/04/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 653634233 CMS
Covidien LP $195.0011/04/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 653634237 CMS
Covidien LP $195.0011/03/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 653634231 CMS
Covidien LP $195.0011/02/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 653634235 CMS
Edwards Lifesciences Corporation $31.5910/28/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 700728155 CMS
AcelRx Pharmaceuticals, Inc. $2,500.0010/20/2019 Honoraria No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 703450327 CMS
AcelRx Pharmaceuticals, Inc. $279.6010/20/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 703450329 CMS
AcelRx Pharmaceuticals, Inc. $2,500.0010/20/2019 Honoraria No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 703450331 CMS
Edwards Lifesciences Corporation $140.1110/20/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 700728121 CMS
Masimo Corporation $122.3410/19/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 700031425 CMS
Merck Sharp & Dohme Corporation $75.0009/25/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 695756333 CMS
Merck Sharp & Dohme Corporation $3,500.0009/23/2019 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 695756331 CMS
Merck Sharp & Dohme Corporation $253.4209/18/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 695745647 CMS
Merck Sharp & Dohme Corporation $302.7309/18/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 695745649 CMS
Merck Sharp & Dohme Corporation $17.5309/18/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 695745651 CMS
Masimo Corporation $1,000.0009/05/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 700031455 CMS
Masimo Corporation $350.0009/05/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 700031457 CMS
Masimo Corporation $175.0009/05/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 700031459 CMS
Masimo Corporation $2,500.0009/05/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 700031461 CMS
Merck Sharp & Dohme Corporation $3,500.0009/03/2019 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 695721893 CMS
Merck Sharp & Dohme Corporation $150.0009/03/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 695721965 CMS
Merck Sharp & Dohme Corporation $329.9508/29/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 695712477 CMS
Merck Sharp & Dohme Corporation $59.4108/29/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 695712479 CMS
Merck Sharp & Dohme Corporation $541.6008/29/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 695721967 CMS
AcelRx Pharmaceuticals, Inc. $1,756.2208/22/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 703450319 CMS
AcelRx Pharmaceuticals, Inc. $123.1908/22/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 703450321 CMS
AcelRx Pharmaceuticals, Inc. $2,500.0008/22/2019 Honoraria No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 703450323 CMS
AcelRx Pharmaceuticals, Inc. $2,500.0008/22/2019 Honoraria No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 703450325 CMS
AcelRx Pharmaceuticals, Inc. $1,436.4008/20/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 703450309 CMS
AcelRx Pharmaceuticals, Inc. $177.9108/20/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 703450311 CMS
AcelRx Pharmaceuticals, Inc. $116.2108/20/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 703450313 CMS
AcelRx Pharmaceuticals, Inc. $1,500.0008/20/2019 Honoraria No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 703450315 CMS
AcelRx Pharmaceuticals, Inc. $2,500.0008/20/2019 Honoraria No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 703450317 CMS
AcelRx Pharmaceuticals, Inc. $20.0008/19/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 703450291 CMS
AcelRx Pharmaceuticals, Inc. $110.0008/19/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 703450293 CMS
AcelRx Pharmaceuticals, Inc. $2,500.0008/19/2019 Honoraria No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 703450295 CMS
AcelRx Pharmaceuticals, Inc. $2,500.0008/19/2019 Honoraria No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 703450297 CMS
AcelRx Pharmaceuticals, Inc. $642.9008/19/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 703450299 CMS
AcelRx Pharmaceuticals, Inc. $472.5208/19/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 703450301 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $189,016.88 137
PY2020 $90,624.65 38
PY2021 $146,246.89 122
PY2022 $109,934.77 94
PY2023 $80,556.29 52
PY2024 $68,494.80 40
PY2025 $15,366.78 10

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.