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

JACEK ZAJAC

Allopathic & Osteopathic Physicians Internal Medicine Endocrinology, Diabetes & Metabolism

NPI
1396817912
CMS profile
199020
Location
LOMBARD, 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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Filter and download payment records

General Payments · PY2021 · Entire year

$3,599.68

192 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 $3,599.68 192

By paying entity

PY2021 · entire year · sorted by reported total

Page 1 of 4; records 1–50 of 192 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

JACEK ZAJAC

NPI 1396817912 · CMS profile ID 199020

Allopathic & Osteopathic Physicians / Internal Medicine / Endocrinology, Diabetes & Metabolism

LOMBARD, 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 4; records 1–50 of 192 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1396817912?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
JACEK ZAJAC, NPI 1396817912, CMS profile ID 199020. 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 4; records 1–50 of 192 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1396817912?year=2021&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/0380bbeb-aea1-58b6-b708-829f92a48202.
APA 7
IndustryPayments. (2026). JACEK ZAJAC, NPI 1396817912, CMS profile ID 199020. 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 4; records 1–50 of 192 matching records. This page contains 50 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1396817912?year=2021&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/0380bbeb-aea1-58b6-b708-829f92a48202.
Bluebook
JACEK ZAJAC, NPI 1396817912, CMS profile ID 199020, 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 4; records 1–50 of 192 matching records. This page contains 50 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/0380bbeb-aea1-58b6-b708-829f92a48202. https://industrypayments.org/provider/npi-1396817912?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

192 matching records · $3,599.68 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 192 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 192.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Corcept Therapeutics $16.6912/20/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 837520115 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $15.7712/17/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 763450454 CMS
DEXCOM, INC. $25.1112/16/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 845304895 CMS
Amarin Pharma Inc. $7.7112/15/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 815307633 CMS
Medtronic, Inc. $9.3512/14/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 838671755 CMS
IBSA Pharma Inc. $16.1712/10/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 792520437 CMS
Radius Health, Inc. $18.2412/09/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 830714689 CMS
Bayer HealthCare Pharmaceuticals Inc. $17.9212/08/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 789045531 CMS
AbbVie Inc. $11.1312/07/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 796299409 CMS
AstraZeneca Pharmaceuticals LP $18.6812/07/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 829477575 CMS
Merck Sharp & Dohme Corporation $13.9612/07/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 848500633 CMS
Novo Nordisk Inc $19.2012/03/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 811561823 CMS
Novo Nordisk Inc $1.0812/02/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 811415247 CMS
MannKind Corporation $23.9312/01/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 821086053 CMS
Novo Nordisk Inc $15.3412/01/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 811104238 CMS
VistaPharm, Inc. $12.0111/29/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 837696363 CMS
Zealand Pharma US, Inc. $15.4711/24/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 800231513 CMS
Corcept Therapeutics $30.6811/22/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 837520125 CMS
Lilly USA, LLC $26.7011/18/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 819184481 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $21.2811/17/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 763450456 CMS
Merck Sharp & Dohme Corporation $13.4011/16/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 848601143 CMS
AstraZeneca Pharmaceuticals LP $15.2011/15/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 830070415 CMS
MannKind Corporation $21.7511/12/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 821086049 CMS
Antares Pharma, Inc. $17.6711/11/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 827477577 CMS
Kowa Pharmaceuticals America, Inc. $14.8711/11/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 805603673 CMS
Abbott Laboratories $13.4511/10/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 815835693 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $12.0111/10/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 849945771 CMS
DEXCOM, INC. $22.4211/09/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 845304893 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $29.5811/08/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 763450458 CMS
MannKind Corporation $22.9311/03/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 821086045 CMS
Novo Nordisk Inc $13.5211/02/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 811675221 CMS
Novo Nordisk Inc $1.0811/01/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 810901499 CMS
MannKind Corporation $15.8110/29/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 821086041 CMS
Medtronic, Inc. $18.1210/29/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 827406319 CMS
Antares Pharma, Inc. $15.9910/28/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 827498493 CMS
DEXCOM, INC. $7.4110/27/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 845304891 CMS
IBSA Pharma Inc. $15.0310/27/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 792520435 CMS
Merck Sharp & Dohme Corporation $10.4410/26/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 848356475 CMS
Amgen Inc. $21.3910/25/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 825369057 CMS
AstraZeneca Pharmaceuticals LP $17.7610/22/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 829638013 CMS
Novo Nordisk Inc $19.9310/21/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 810743577 CMS
Novo Nordisk Inc $1.4510/21/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 811561819 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $12.7810/20/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 763450460 CMS
DEXCOM, INC. $16.0510/19/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 845304889 CMS
Lilly USA, LLC $22.3410/12/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 818568881 CMS
Lilly USA, LLC $1.8310/11/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 818553741 CMS
IBSA Pharma Inc. $11.8710/05/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 792520433 CMS
AbbVie Inc. $12.7009/29/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 796299407 CMS
Bayer HealthCare Pharmaceuticals Inc. $18.3609/29/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 789072083 CMS
AstraZeneca Pharmaceuticals LP $17.1409/28/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 829279487 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $3,234.51 224
PY2020 $2,584.40 142
PY2021 $3,599.68 192
PY2022 $4,039.38 233
PY2023 $4,519.09 228
PY2024 $4,452.55 223
PY2025 $3,697.40 183

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.