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

DOUGLAS Z LIOU

Allopathic & Osteopathic Physicians Thoracic Surgery (Cardiothoracic Vascular Surgery)

NPI
1891052080
CMS profile
1129120
Location
PALO ALTO, 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 · PY2019 · Entire year

$7,924.83

48 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

PY2019 · entire year · sorted by reported total

By paying entity

PY2019 · entire year · sorted by reported total

Paying entityAmountRecords
Pinnacle Biologics, Inc $5,002.30 23
Intuitive Surgical, Inc. $2,632.59 16
Covidien LP $289.94 9

Page 1 of 1; records 1–48 of 48 matching records. This page contains 48 records (maximum 50), not the full filtered export. Use the CSV download for all matching records.

IndustryPayments · General Payments

DOUGLAS Z LIOU

NPI 1891052080 · CMS profile ID 1129120

Allopathic & Osteopathic Physicians / Thoracic Surgery (Cardiothoracic Vascular Surgery)

PALO ALTO, 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.

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 1; records 1–48 of 48 matching records. This page contains 48 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1891052080?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
DOUGLAS Z LIOU, NPI 1891052080, CMS profile ID 1129120. 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 1; records 1–48 of 48 matching records. This page contains 48 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1891052080?year=2019&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e.
APA 7
IndustryPayments. (2026). DOUGLAS Z LIOU, NPI 1891052080, CMS profile ID 1129120. 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 1; records 1–48 of 48 matching records. This page contains 48 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1891052080?year=2019&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e.
Bluebook
DOUGLAS Z LIOU, NPI 1891052080, CMS profile ID 1129120, 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 1; records 1–48 of 48 matching records. This page contains 48 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e. https://industrypayments.org/provider/npi-1891052080?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

48 matching records · $7,924.83 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 48 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 1–48 of 48.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Covidien LP $30.3412/13/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 653634897 CMS
Pinnacle Biologics, Inc $1,000.0012/12/2019 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 681641021 CMS
Pinnacle Biologics, Inc $41.1012/12/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681641023 CMS
Pinnacle Biologics, Inc $40.3512/12/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681641025 CMS
Pinnacle Biologics, Inc $38.0012/12/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681641027 CMS
Pinnacle Biologics, Inc $60.0012/12/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681641029 CMS
Pinnacle Biologics, Inc $96.2612/12/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681641031 CMS
Pinnacle Biologics, Inc $811.1912/12/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681641033 CMS
Covidien LP $16.0012/03/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 636951451 CMS
Covidien LP $29.1212/03/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 636951457 CMS
Pinnacle Biologics, Inc $99.3611/16/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681641017 CMS
Pinnacle Biologics, Inc $97.0611/16/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681641019 CMS
Pinnacle Biologics, Inc $82.7211/15/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681641015 CMS
Intuitive Surgical, Inc. $175.9911/11/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 706345929 CMS
Intuitive Surgical, Inc. $19.0011/11/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 706345931 CMS
Intuitive Surgical, Inc. $842.8110/30/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 706354669 CMS
Intuitive Surgical, Inc. $19.0010/10/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 752434281 CMS
Intuitive Surgical, Inc. $19.0010/10/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 752434283 CMS
Intuitive Surgical, Inc. $127.9610/09/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 752433913 CMS
Covidien LP $39.8009/19/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 636951429 CMS
Covidien LP $17.6807/25/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 636951433 CMS
Covidien LP $42.9707/25/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 636951437 CMS
Covidien LP $41.1007/25/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 636951447 CMS
Intuitive Surgical, Inc. $89.5307/10/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 706531579 CMS
Intuitive Surgical, Inc. $118.6507/10/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 706531581 CMS
Covidien LP $35.5505/21/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 636951453 CMS
Intuitive Surgical, Inc. $163.8104/20/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 706455431 CMS
Intuitive Surgical, Inc. $361.3904/04/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 706427795 CMS
Intuitive Surgical, Inc. $326.5404/04/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 706428145 CMS
Pinnacle Biologics, Inc $96.1103/30/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681641013 CMS
Intuitive Surgical, Inc. $8.0003/20/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 706425989 CMS
Pinnacle Biologics, Inc $84.1903/15/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681641011 CMS
Intuitive Surgical, Inc. $154.3503/04/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 706425985 CMS
Intuitive Surgical, Inc. $19.0003/04/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 706425987 CMS
Intuitive Surgical, Inc. $19.0003/04/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 706426031 CMS
Intuitive Surgical, Inc. $168.5603/04/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 706426033 CMS
Pinnacle Biologics, Inc $45.9902/21/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681640989 CMS
Pinnacle Biologics, Inc $77.2002/21/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681640991 CMS
Pinnacle Biologics, Inc $1,000.0002/21/2019 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 681640993 CMS
Pinnacle Biologics, Inc $147.9102/21/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681640995 CMS
Pinnacle Biologics, Inc $86.6602/21/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681640997 CMS
Pinnacle Biologics, Inc $36.7402/21/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681640999 CMS
Pinnacle Biologics, Inc $30.0002/21/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681641001 CMS
Pinnacle Biologics, Inc $22.3602/21/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681641003 CMS
Pinnacle Biologics, Inc $48.0002/21/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681641005 CMS
Pinnacle Biologics, Inc $30.4502/21/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681641007 CMS
Pinnacle Biologics, Inc $930.6502/21/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681641009 CMS
Covidien LP $37.3801/11/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 636951441 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $7,924.83 48
PY2020 $1,802.71 27
PY2021 $1,720.74 32
PY2022 $1,598.61 21
PY2023 $14,191.92 51
PY2024 $756.74 15
PY2025 $2,540.54 17

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.