Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · CMS publication 2026-06-30 View official record

Reflects CMS Open Payments as of 2026-07-26T04:22:22Z. 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 ↗

Covered recipient · General Payments record

NICHOLAS KARJUN CHAN

Allopathic & Osteopathic Physicians Ophthalmology

NPI
1396132403
CMS profile
4227283
Location
OAK LAWN, 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.

General Payments · PY2021–2025

  • CMS publication 2026-06-30

Latest program year · PY2025

$1,055.36

36 records · 0 disputed

“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.
  • Featured-page threshold (a presentation gate, not a judgment): (records>=3 OR total>=100) AND records>=2 AND NPI identity (all years).
  • Methodology & Data — sourcing, labeling, and limitations.

By nature of payment

PY2025 · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $1,016.50 35
Honoraria $38.86 1

By paying entity

PY2025 · sorted by reported total

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2021 $252.19 5
PY2022 $1,055.88 34
PY2023 $708.39 28
PY2024 $1,247.61 36
PY2025 $1,055.36 36

Payment records · PY2025 (36)

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

Program year 2025 2021202220232024 Record-level detail is published for PY2025; earlier years are summarised in “By program year”.
Paying entity Amount Date Nature of payment Dispute status Published Record ID Source
ANI Pharmaceuticals, Inc. $15.26 12/20/2025 Food and Beverage No dispute reported 06/30/2026 1248657914 CMS
Harrow Eye, LLC $32.41 11/26/2025 Food and Beverage No dispute reported 06/30/2026 1236214869 CMS
Alcon Vision LLC $108.07 10/28/2025 Food and Beverage No dispute reported 06/30/2026 1207505403 CMS
ANI Pharmaceuticals, Inc. $17.77 10/22/2025 Food and Beverage No dispute reported 06/30/2026 1248647147 CMS
Tarsus Pharmaceuticals, Inc. $28.75 10/14/2025 Food and Beverage No dispute reported 06/30/2026 1233839646 CMS
Sight Sciences, Inc. $21.94 10/07/2025 Food and Beverage No dispute reported 06/30/2026 1244662314 CMS
ANI Pharmaceuticals, Inc. $20.97 10/02/2025 Food and Beverage No dispute reported 06/30/2026 1248611611 CMS
Alcon Vision LLC $16.41 09/23/2025 Food and Beverage No dispute reported 06/30/2026 1207505347 CMS
NEW WORLD MEDICAL,INC. $3.87 09/19/2025 Food and Beverage No dispute reported 06/30/2026 1251342605 CMS
Bausch & Lomb Americas Inc. $25.00 09/10/2025 Food and Beverage No dispute reported 06/30/2026 1254858886 CMS
Alcon Vision LLC $7.47 09/09/2025 Food and Beverage No dispute reported 06/30/2026 1207505361 CMS
Tarsus Pharmaceuticals, Inc. $23.16 09/02/2025 Food and Beverage No dispute reported 06/30/2026 1233839644 CMS
Mallinckrodt Hospital Products Inc. $27.53 08/12/2025 Food and Beverage No dispute reported 06/30/2026 1211956859 CMS
Bausch & Lomb Americas Inc. $21.82 08/08/2025 Food and Beverage No dispute reported 06/30/2026 1254858888 CMS
Harrow Eye, LLC $21.46 08/08/2025 Food and Beverage No dispute reported 06/30/2026 1236214867 CMS
Harrow Eye, LLC $39.02 08/07/2025 Food and Beverage No dispute reported 06/30/2026 1236214865 CMS
NEW WORLD MEDICAL,INC. $21.11 07/24/2025 Food and Beverage No dispute reported 06/30/2026 1251341676 CMS
Alcon Vision LLC $13.96 07/16/2025 Food and Beverage No dispute reported 06/30/2026 1207505329 CMS
Dompe US, Inc. $26.12 07/08/2025 Food and Beverage No dispute reported 06/30/2026 1248879077 CMS
Sight Sciences, Inc. $24.71 06/10/2025 Food and Beverage No dispute reported 06/30/2026 1244657806 CMS
RxSight Inc $38.86 05/29/2025 Honoraria No dispute reported 06/30/2026 1251702045 CMS
Sight Sciences, Inc. $21.40 05/21/2025 Food and Beverage No dispute reported 06/30/2026 1244657804 CMS
NEW WORLD MEDICAL,INC. $16.66 05/14/2025 Food and Beverage No dispute reported 06/30/2026 1251340619 CMS
SUN PHARMACEUTICAL INDUSTRIES INC. $19.41 05/13/2025 Food and Beverage No dispute reported 06/30/2026 1251042019 CMS
Mallinckrodt Hospital Products Inc. $32.25 04/15/2025 Food and Beverage No dispute reported 06/30/2026 1211956857 CMS
Harrow Eye, LLC $34.05 04/07/2025 Food and Beverage No dispute reported 06/30/2026 1236214863 CMS
Johnson & Johnson Surgical Vision, Inc. $16.01 03/20/2025 Food and Beverage No dispute reported 06/30/2026 1173810521 CMS
Mallinckrodt Hospital Products Inc. $29.80 03/20/2025 Food and Beverage No dispute reported 06/30/2026 1211956855 CMS
Rayner Intraocular Lenses Limited $28.67 03/10/2025 Food and Beverage No dispute reported 06/30/2026 1211224657 CMS
Alcon Vision LLC $136.87 02/19/2025 Food and Beverage No dispute reported 06/30/2026 1207505235 CMS
Alcon Vision LLC $20.25 02/13/2025 Food and Beverage No dispute reported 06/30/2026 1207505233 CMS
Mallinckrodt Hospital Products Inc. $32.51 02/12/2025 Food and Beverage No dispute reported 06/30/2026 1211956853 CMS
Alcon Vision LLC $37.50 02/07/2025 Food and Beverage No dispute reported 06/30/2026 1207505237 CMS
Harrow Eye, LLC $19.29 02/06/2025 Food and Beverage No dispute reported 06/30/2026 1236214861 CMS
Rayner Intraocular Lenses Limited $28.30 02/06/2025 Food and Beverage No dispute reported 06/30/2026 1211224529 CMS
ANI Pharmaceuticals, Inc. $26.72 01/17/2025 Food and Beverage No dispute reported 06/30/2026 1248638409 CMS

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
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.

Cite this record.

Plain
NICHOLAS KARJUN CHAN, NPI 1396132403. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1396132403.
APA 7
IndustryPayments. (2026). NICHOLAS KARJUN CHAN, NPI 1396132403 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1396132403
Bluebook
NICHOLAS KARJUN CHAN, NPI 1396132403, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1396132403.

Source: Centers for Medicare & Medicaid Services, Open Payments.