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

WILLIAM W CHOW

Allopathic & Osteopathic Physicians Psychiatry & Neurology Neurology

NPI
1457409211
CMS profile
156848
Location
LOS ANGELES, 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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Filter and download payment records

General Payments · PY2023 · Entire year

$1,982.35

78 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

PY2023 · entire year · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $1,982.35 78

By paying entity

PY2023 · entire year · sorted by reported total

Paying entityAmountRecords
UCB, Inc. $456.18 19
Sumitomo Pharma America, Inc. $251.81 11
PFIZER INC. $194.66 7
Lundbeck LLC $170.58 6
ARGENX US, INC. $164.65 6
Lilly USA, LLC $147.42 6
GENZYME CORPORATION $137.54 4
Biogen, Inc. $105.04 4
Amneal Pharmaceuticals LLC $95.44 4
AbbVie Inc. $93.51 3
Novartis Pharmaceuticals Corporation $74.26 4
MDD US Operations, LLC $51.65 2
Kyowa Kirin, Inc. $20.70 1
Alnylam Pharmaceuticals Inc. $18.91 1

Page 1 of 2; records 1–50 of 78 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

WILLIAM W CHOW

NPI 1457409211 · CMS profile ID 156848

Allopathic & Osteopathic Physicians / Psychiatry & Neurology / Neurology

LOS ANGELES, 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, PY2023; 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 2; records 1–50 of 78 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1457409211?year=2023&recipient=provider#records-h

CMS source: https://openpaymentsdata.cms.gov/dataset/fb3a65aa-c901-4a38-a813-b04b00dfa2a9

Cite these filtered records

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

Plain
WILLIAM W CHOW, NPI 1457409211, CMS profile ID 156848. General Payments, PY2023; 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 2; records 1–50 of 78 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1457409211?year=2023&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/fb3a65aa-c901-4a38-a813-b04b00dfa2a9.
APA 7
IndustryPayments. (2026). WILLIAM W CHOW, NPI 1457409211, CMS profile ID 156848. General Payments, PY2023; 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 2; records 1–50 of 78 matching records. This page contains 50 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1457409211?year=2023&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/fb3a65aa-c901-4a38-a813-b04b00dfa2a9.
Bluebook
WILLIAM W CHOW, NPI 1457409211, CMS profile ID 156848, IndustryPayments, General Payments, PY2023; 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 2; records 1–50 of 78 matching records. This page contains 50 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/fb3a65aa-c901-4a38-a813-b04b00dfa2a9. https://industrypayments.org/provider/npi-1457409211?year=2023&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 · PY2023

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

General Payments · PY2023 · Physicians and non-physician practitioners · CMS publication 2026-06-30

78 matching records · $1,982.35 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 78 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 78.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
UCB, Inc. $32.2412/23/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1021478689 CMS
UCB, Inc. $5.3212/22/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1021478637 CMS
PFIZER INC. $29.2112/20/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1050652109 CMS
Sumitomo Pharma America, Inc. $26.9412/18/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1030978891 CMS
UCB, Inc. $26.9312/16/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1021478677 CMS
UCB, Inc. $47.2211/30/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1021478709 CMS
PFIZER INC. $28.1311/28/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1049495397 CMS
Novartis Pharmaceuticals Corporation $20.6211/20/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 991649821 CMS
GENZYME CORPORATION $36.3311/15/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1049962027 CMS
UCB, Inc. $8.9811/11/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1021478655 CMS
Lundbeck LLC $27.0111/08/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1032196717 CMS
Sumitomo Pharma America, Inc. $26.1211/03/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1030978895 CMS
UCB, Inc. $44.5610/27/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1021478705 CMS
UCB, Inc. $5.7410/26/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1021478641 CMS
UCB, Inc. $20.4110/25/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1021478665 CMS
Biogen, Inc. $24.8210/13/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1012261709 CMS
Sumitomo Pharma America, Inc. $23.7009/29/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1030978903 CMS
Lundbeck LLC $27.0109/27/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1032196711 CMS
MDD US Operations, LLC $24.3209/26/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1052869175 CMS
UCB, Inc. $6.2209/26/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1021478645 CMS
UCB, Inc. $13.8809/25/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1021478659 CMS
UCB, Inc. $42.7009/23/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1021478701 CMS
UCB, Inc. $7.0309/22/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1021478647 CMS
Lilly USA, LLC $21.3809/21/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1032510553 CMS
Novartis Pharmaceuticals Corporation $14.8609/12/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 991649809 CMS
UCB, Inc. $30.5209/12/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1021478685 CMS
UCB, Inc. $39.2408/31/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1021478697 CMS
Sumitomo Pharma America, Inc. $22.4808/28/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1030978907 CMS
AbbVie Inc. $34.0508/25/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 996440395 CMS
PFIZER INC. $26.2908/25/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1050508899 CMS
ARGENX US, INC. $27.7608/22/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1060410135 CMS
GENZYME CORPORATION $32.4908/18/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1049961985 CMS
Sumitomo Pharma America, Inc. $25.3608/16/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1030978899 CMS
UCB, Inc. $24.8608/15/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1021478669 CMS
Lundbeck LLC $26.4108/10/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1032196705 CMS
Alnylam Pharmaceuticals Inc. $18.9108/07/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1006117485 CMS
UCB, Inc. $38.0607/31/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1021478693 CMS
UCB, Inc. $28.7007/28/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1021478681 CMS
Lilly USA, LLC $22.3407/26/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1032510547 CMS
PFIZER INC. $26.9307/21/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1049528473 CMS
Sumitomo Pharma America, Inc. $10.4107/18/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1030978931 CMS
ARGENX US, INC. $27.7707/10/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1060409979 CMS
Biogen, Inc. $30.9506/30/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1012151093 CMS
AbbVie Inc. $30.6506/22/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 996440390 CMS
Sumitomo Pharma America, Inc. $24.7306/20/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1030978937 CMS
Amneal Pharmaceuticals LLC $23.5206/08/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1053484493 CMS
UCB, Inc. $7.3906/07/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1021478651 CMS
UCB, Inc. $26.1806/07/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1021478673 CMS
Lilly USA, LLC $21.7706/06/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1032429951 CMS
ARGENX US, INC. $27.7705/31/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1060409963 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $1,411.77 77
PY2020 $721.10 39
PY2021 $3,378.27 79
PY2022 $2,070.05 95
PY2023 $1,982.35 78
PY2024 $1,728.15 78
PY2025 $1,567.21 67

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.