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 T HAYDUK

Physician Assistants & Advanced Practice Nursing Providers Physician Assistant

NPI
1821363870
CMS profile
11001982
Location
CHICAGO, IL

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

$1,622.47

41 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

PY2021 · entire year · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $946.80 37
Travel and Lodging $675.67 4

By paying entity

PY2021 · entire year · sorted by reported total

Paying entityAmountRecords
Abbott Laboratories $1,095.43 9
AbbVie Inc. $446.07 27
BioDelivery Sciences International, Inc. $25.85 2
Biohaven Pharmaceuticals, Inc. $20.68 1
RedHill Biopharma Inc. $19.44 1
Allergan, Inc. $15.00 1

Page 1 of 1; records 1–41 of 41 matching records. This page contains 41 records (maximum 50), not the full filtered export. Use the CSV download for all matching records.

IndustryPayments · General Payments

WILLIAM T HAYDUK

NPI 1821363870 · CMS profile ID 11001982

Physician Assistants & Advanced Practice Nursing Providers / Physician Assistant

CHICAGO, IL

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 1; records 1–41 of 41 matching records. This page contains 41 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1821363870?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
WILLIAM T HAYDUK, NPI 1821363870, CMS profile ID 11001982. 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 1; records 1–41 of 41 matching records. This page contains 41 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1821363870?year=2021&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/0380bbeb-aea1-58b6-b708-829f92a48202.
APA 7
IndustryPayments. (2026). WILLIAM T HAYDUK, NPI 1821363870, CMS profile ID 11001982. 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 1; records 1–41 of 41 matching records. This page contains 41 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1821363870?year=2021&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/0380bbeb-aea1-58b6-b708-829f92a48202.
Bluebook
WILLIAM T HAYDUK, NPI 1821363870, CMS profile ID 11001982, 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 1; records 1–41 of 41 matching records. This page contains 41 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/0380bbeb-aea1-58b6-b708-829f92a48202. https://industrypayments.org/provider/npi-1821363870?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

41 matching records · $1,622.47 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 41 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 1–41 of 41.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
AbbVie Inc. $19.2912/21/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 794462151 CMS
AbbVie Inc. $8.6011/04/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 794462147 CMS
AbbVie Inc. $9.5810/28/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 794462143 CMS
Abbott Laboratories $153.8510/11/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 815743493 CMS
AbbVie Inc. $18.8410/04/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 794462139 CMS
AbbVie Inc. $8.7509/29/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 794462135 CMS
AbbVie Inc. $10.2209/25/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 794462131 CMS
AbbVie Inc. $17.6509/13/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 794462127 CMS
Abbott Laboratories $10.6709/07/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 833778773 CMS
Abbott Laboratories $107.2209/07/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 833778781 CMS
AbbVie Inc. $1.6509/03/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 794462123 CMS
AbbVie Inc. $5.4008/19/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 794462119 CMS
Abbott Laboratories $113.7008/16/2021 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 833778759 CMS
Abbott Laboratories $109.2008/16/2021 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 833778765 CMS
AbbVie Inc. $12.2908/09/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 794462115 CMS
AbbVie Inc. $8.8108/05/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 794462111 CMS
Abbott Laboratories $433.4907/22/2021 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 833778793 CMS
BioDelivery Sciences International, Inc. $13.6407/16/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 817756281 CMS
Abbott Laboratories $138.4107/08/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 833778787 CMS
AbbVie Inc. $9.8706/12/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 794462107 CMS
RedHill Biopharma Inc. $19.4405/28/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 799923795 CMS
AbbVie Inc. $8.3905/25/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 794462103 CMS
AbbVie Inc. $87.0705/12/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 794462099 CMS
AbbVie Inc. $16.4504/26/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 794462095 CMS
Abbott Laboratories $9.6104/23/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 815477663 CMS
AbbVie Inc. $17.3604/21/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 794462091 CMS
Biohaven Pharmaceuticals, Inc. $20.6804/16/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 852740517 CMS
AbbVie Inc. $12.9704/12/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 794462087 CMS
AbbVie Inc. $14.9103/27/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 794462083 CMS
Abbott Laboratories $19.2803/26/2021 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 818407711 CMS
AbbVie Inc. $17.9703/19/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 794462079 CMS
AbbVie Inc. $20.0003/13/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 794462075 CMS
AbbVie Inc. $15.4702/27/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 794462071 CMS
AbbVie Inc. $17.0702/26/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 794462067 CMS
AbbVie Inc. $14.5602/19/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 794462063 CMS
AbbVie Inc. $21.4302/15/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 794462059 CMS
AbbVie Inc. $13.1002/05/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 794462055 CMS
AbbVie Inc. $19.4402/04/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 794462051 CMS
BioDelivery Sciences International, Inc. $12.2102/04/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 817722565 CMS
AbbVie Inc. $18.9301/22/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 794462047 CMS
Allergan, Inc. $15.0001/22/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 793030753 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2021 $1,622.47 41
PY2022 $3,768.86 185
PY2023 $3,731.53 97
PY2024 $2,359.37 45
PY2025 $1,752.15 26

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
2021, 2022, 2023, 2024, 2025
Source files and profile matching
Source files
Dataset page · Bulk file · PY2021 , PY2022 , PY2023 , PY2024 , PY2025
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.