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.

Saved items

Saved only in this browser. No account or alerts.

Filter and download payment records

General Payments · PY2022 · Entire year

$4,039.38

233 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

PY2022 · entire year · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $4,027.05 232
Education $12.33 1

By paying entity

PY2022 · entire year · sorted by reported total

Page 1 of 5; records 1–50 of 233 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, PY2022; 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 5; records 1–50 of 233 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1396817912?year=2022&recipient=provider#records-h

CMS source: https://openpaymentsdata.cms.gov/dataset/df01c2f8-dc1f-4e79-96cb-8208beaf143c

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, PY2022; 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 5; records 1–50 of 233 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1396817912?year=2022&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/df01c2f8-dc1f-4e79-96cb-8208beaf143c.
APA 7
IndustryPayments. (2026). JACEK ZAJAC, NPI 1396817912, CMS profile ID 199020. General Payments, PY2022; 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 5; records 1–50 of 233 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=2022&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/df01c2f8-dc1f-4e79-96cb-8208beaf143c.
Bluebook
JACEK ZAJAC, NPI 1396817912, CMS profile ID 199020, IndustryPayments, General Payments, PY2022; 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 5; records 1–50 of 233 matching records. This page contains 50 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/df01c2f8-dc1f-4e79-96cb-8208beaf143c. https://industrypayments.org/provider/npi-1396817912?year=2022&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 · PY2022

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

General Payments · PY2022 · Physicians and non-physician practitioners · CMS publication 2026-06-30

233 matching records · $4,039.38 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 233 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 233.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Xeris Pharmaceuticals, Inc. $13.9612/28/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 946478445 CMS
Corcept Therapeutics $24.3612/21/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 948784241 CMS
Amneal Pharmaceuticals LLC $18.2412/20/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 956609093 CMS
AstraZeneca Pharmaceuticals LP $22.7112/20/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 915551677 CMS
Dexcom, Inc. $15.1212/16/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 957347383 CMS
Novo Nordisk Inc $22.5712/16/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 899642427 CMS
Novo Nordisk Inc $1.0812/15/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 899284123 CMS
Mannkind Corporation $24.9412/13/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 942769409 CMS
Antares Pharma, Inc. $16.9712/12/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 956904475 CMS
Xeris Pharmaceuticals, Inc. $19.6312/09/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 946478443 CMS
Amgen Inc. $13.2212/08/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 939197125 CMS
Lilly USA, LLC $27.2012/08/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 918045869 CMS
Medtronic, Inc. $25.2812/06/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 930698811 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $13.6612/02/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 887381737 CMS
SANOFI-AVENTIS U.S. LLC $7.7612/01/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 938897893 CMS
Corcept Therapeutics $28.7411/30/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 948784229 CMS
Bayer HealthCare Pharmaceuticals Inc. $25.1911/29/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 930184723 CMS
Amneal Pharmaceuticals LLC $18.0611/28/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 956609089 CMS
Dexcom, Inc. $19.2711/22/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 957347385 CMS
Abbott Laboratories $11.8711/20/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 914198347 CMS
Novo Nordisk Inc $21.4311/19/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 899284273 CMS
Antares Pharma, Inc. $13.9711/16/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 956904471 CMS
Radius Health, Inc. $18.3711/16/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 954908095 CMS
Dexcom, Inc. $5.3711/14/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 957347387 CMS
Merck Sharp & Dohme LLC $15.2211/14/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 944373663 CMS
ABBVIE INC. $20.0511/11/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 893260833 CMS
Corcept Therapeutics $5.5411/11/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 948784225 CMS
Lilly USA, LLC $21.3111/10/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 918068809 CMS
Dexcom, Inc. $28.5011/07/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 957347389 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $26.4311/02/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 887377051 CMS
Amryt Pharma Holdings Ltd $25.9211/01/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 881047355 CMS
Corcept Therapeutics $19.9410/28/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 948784201 CMS
Xeris Pharmaceuticals, Inc. $14.9210/26/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 946478441 CMS
Mannkind Corporation $22.2410/25/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 942769407 CMS
Dexcom, Inc. $9.2610/21/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 957347391 CMS
Dexcom, Inc. $18.7110/20/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 957347395 CMS
Novo Nordisk Inc $23.2010/20/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 899146081 CMS
AstraZeneca Pharmaceuticals LP $18.0110/19/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 915544297 CMS
Xeris Pharmaceuticals, Inc. $16.4210/18/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 946478439 CMS
Amneal Pharmaceuticals LLC $12.9010/17/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 956609085 CMS
Lilly USA, LLC $23.2210/13/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 918072503 CMS
Antares Pharma, Inc. $18.3910/12/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 956904465 CMS
Corcept Therapeutics $5.3310/12/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 948784197 CMS
Becton, Dickinson and Company $20.9310/11/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 946089619 CMS
Mannkind Corporation $23.1810/07/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 942769405 CMS
Radius Health, Inc. $19.9510/06/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 954908007 CMS
Merck Sharp & Dohme LLC $11.9710/03/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 944248723 CMS
Lilly USA, LLC $23.0409/30/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 918079889 CMS
Novo Nordisk Inc $1.6109/29/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 899284255 CMS
Novo Nordisk Inc $19.4209/29/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 899642423 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.