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

JIUN YOON

Allopathic & Osteopathic Physicians Allergy & Immunology

NPI
1548258783
CMS profile
749227
Location
ASHBURN, VA

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 · PY2019–2025

  • CMS publication 2026-06-30

Latest program year · PY2025

$1,561.79

46 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 $1,373.61 43
Education $188.18 3

By paying entity

PY2025 · sorted by reported total

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $969.06 41
PY2020 $836.54 39
PY2021 $765.10 36
PY2022 $764.10 31
PY2023 $1,025.92 31
PY2024 $1,213.73 36
PY2025 $1,561.79 46

Payment records · PY2025 (46)

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

Program year 2025 201920202021202220232024 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
ARS Pharmaceuticals Operations, Inc. $8.70 12/23/2025 Food and Beverage No dispute reported 06/30/2026 1245898035 CMS
Regeneron Healthcare Solutions, Inc. $79.94 12/15/2025 Education No dispute reported 06/30/2026 1213076746 CMS
AstraZeneca Pharmaceuticals LP $22.83 12/04/2025 Food and Beverage No dispute reported 06/30/2026 1206728394 CMS
Novartis Pharmaceuticals Corporation $24.10 12/03/2025 Food and Beverage No dispute reported 06/30/2026 1200425831 CMS
PFIZER INC. $24.66 11/21/2025 Food and Beverage No dispute reported 06/30/2026 1231004081 CMS
GENZYME CORPORATION $119.09 11/18/2025 Food and Beverage No dispute reported 06/30/2026 1233405954 CMS
ARS Pharmaceuticals Operations, Inc. $7.80 11/15/2025 Food and Beverage No dispute reported 06/30/2026 1245898033 CMS
AstraZeneca Pharmaceuticals LP $23.53 11/14/2025 Food and Beverage No dispute reported 06/30/2026 1206910764 CMS
AstraZeneca Pharmaceuticals LP $135.00 11/13/2025 Food and Beverage No dispute reported 06/30/2026 1206725253 CMS
Novartis Pharmaceuticals Corporation $30.61 10/29/2025 Food and Beverage No dispute reported 06/30/2026 1200425827 CMS
ARS Pharmaceuticals Operations, Inc. $18.31 10/27/2025 Food and Beverage No dispute reported 06/30/2026 1245898031 CMS
GENZYME CORPORATION $23.13 10/16/2025 Food and Beverage No dispute reported 06/30/2026 1233405926 CMS
PFIZER INC. $34.55 10/09/2025 Food and Beverage No dispute reported 06/30/2026 1230340128 CMS
AstraZeneca Pharmaceuticals LP $21.60 10/02/2025 Food and Beverage No dispute reported 06/30/2026 1207231168 CMS
AstraZeneca Pharmaceuticals LP $18.81 09/25/2025 Food and Beverage No dispute reported 06/30/2026 1206311330 CMS
PFIZER INC. $32.27 09/11/2025 Food and Beverage No dispute reported 06/30/2026 1229802754 CMS
ARS Pharmaceuticals Operations, Inc. $9.42 09/05/2025 Food and Beverage No dispute reported 06/30/2026 1245898029 CMS
GENZYME CORPORATION $21.17 08/20/2025 Food and Beverage No dispute reported 06/30/2026 1233405906 CMS
Novartis Pharmaceuticals Corporation $21.67 08/14/2025 Food and Beverage No dispute reported 06/30/2026 1200425801 CMS
ARS Pharmaceuticals Operations, Inc. $27.00 08/13/2025 Food and Beverage No dispute reported 06/30/2026 1245898027 CMS
SANOFI-AVENTIS U.S. LLC $99.99 08/07/2025 Education No dispute reported 06/30/2026 1233405896 CMS
AstraZeneca Pharmaceuticals LP $31.64 08/06/2025 Food and Beverage No dispute reported 06/30/2026 1206850023 CMS
AstraZeneca Pharmaceuticals LP $124.99 07/30/2025 Food and Beverage No dispute reported 06/30/2026 1206859566 CMS
PFIZER INC. $23.53 07/09/2025 Food and Beverage No dispute reported 06/30/2026 1229278870 CMS
PFIZER INC. $2.87 07/09/2025 Food and Beverage No dispute reported 06/30/2026 1230115313 CMS
AstraZeneca Pharmaceuticals LP $23.21 07/03/2025 Food and Beverage No dispute reported 06/30/2026 1206564347 CMS
GENZYME CORPORATION $21.86 06/23/2025 Food and Beverage No dispute reported 06/30/2026 1233405884 CMS
ARS Pharmaceuticals Operations, Inc. $25.15 06/18/2025 Food and Beverage No dispute reported 06/30/2026 1245898025 CMS
AstraZeneca Pharmaceuticals LP $20.97 05/29/2025 Food and Beverage No dispute reported 06/30/2026 1207184559 CMS
PFIZER INC. $35.28 05/07/2025 Food and Beverage No dispute reported 06/30/2026 1228928286 CMS
ARS Pharmaceuticals Operations, Inc. $8.85 05/01/2025 Food and Beverage No dispute reported 06/30/2026 1245898023 CMS
GENZYME CORPORATION $8.25 04/02/2025 Education No dispute reported 06/30/2026 1233405848 CMS
GENZYME CORPORATION $34.09 04/02/2025 Food and Beverage No dispute reported 06/30/2026 1233405850 CMS
Lilly USA, LLC $22.39 03/26/2025 Food and Beverage No dispute reported 06/30/2026 1186702943 CMS
Genentech USA, Inc. $143.03 03/19/2025 Food and Beverage No dispute reported 06/30/2026 1211524460 CMS
Novartis Pharmaceuticals Corporation $22.66 03/19/2025 Food and Beverage No dispute reported 06/30/2026 1200591087 CMS
Regeneron Healthcare Solutions, Inc. $27.84 03/12/2025 Food and Beverage No dispute reported 06/30/2026 1213076744 CMS
GENZYME CORPORATION $33.22 02/26/2025 Food and Beverage No dispute reported 06/30/2026 1233405838 CMS
PFIZER INC. $18.49 02/19/2025 Food and Beverage No dispute reported 06/30/2026 1228873323 CMS
PFIZER INC. $5.05 02/19/2025 Food and Beverage No dispute reported 06/30/2026 1229947605 CMS
ARS Pharmaceuticals Operations, Inc. $21.90 02/14/2025 Food and Beverage No dispute reported 06/30/2026 1245898021 CMS
GENZYME CORPORATION $31.87 02/06/2025 Food and Beverage No dispute reported 06/30/2026 1233405834 CMS
Lilly USA, LLC $18.91 01/28/2025 Food and Beverage No dispute reported 06/30/2026 1186716829 CMS
AstraZeneca Pharmaceuticals LP $19.88 01/23/2025 Food and Beverage No dispute reported 06/30/2026 1206544489 CMS
ARS Pharmaceuticals Operations, Inc. $8.51 01/10/2025 Food and Beverage No dispute reported 06/30/2026 1245898019 CMS
GlaxoSmithKline, LLC. $23.17 01/09/2025 Food and Beverage No dispute reported 06/30/2026 1190518172 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
2019, 2020, 2021, 2022, 2023, 2024, 2025
Source files
Dataset page · Bulk file · PY2019 , PY2020 , 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
JIUN YOON, NPI 1548258783. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1548258783.
APA 7
IndustryPayments. (2026). JIUN YOON, NPI 1548258783 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1548258783
Bluebook
JIUN YOON, NPI 1548258783, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1548258783.

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