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

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.

Saved items

Saved only in this browser. No account or alerts.

Filter and download payment records

General Payments · PY2020 · Entire year

$836.54

39 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

PY2020 · entire year · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $830.62 38
Education $5.92 1

By paying entity

PY2020 · entire year · sorted by reported total

Paying entityAmountRecords
GENZYME CORPORATION $221.92 7
AstraZeneca Pharmaceuticals LP $205.64 11
GlaxoSmithKline, LLC. $179.04 8
PFIZER INC. $151.93 9
kaleo, Inc. $78.01 4

Page 1 of 1; records 1–39 of 39 matching records. This page contains 39 records (maximum 50), not the full filtered export. Use the CSV download for all matching records.

IndustryPayments · General Payments

JIUN YOON

NPI 1548258783 · CMS profile ID 749227

Allopathic & Osteopathic Physicians / Allergy & Immunology

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.

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, PY2020; 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 1–39 of 39 matching records. This page contains 39 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1548258783?year=2020&recipient=provider#records-h

CMS source: https://openpaymentsdata.cms.gov/dataset/a08c4b30-5cf3-4948-ad40-36f404619019

Cite these filtered records

The citation includes this program year, filters, data edition, and page of results.

Plain
JIUN YOON, NPI 1548258783, CMS profile ID 749227. General Payments, PY2020; 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 1–39 of 39 matching records. This page contains 39 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1548258783?year=2020&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/a08c4b30-5cf3-4948-ad40-36f404619019.
APA 7
IndustryPayments. (2026). JIUN YOON, NPI 1548258783, CMS profile ID 749227. General Payments, PY2020; 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 1–39 of 39 matching records. This page contains 39 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1548258783?year=2020&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/a08c4b30-5cf3-4948-ad40-36f404619019.
Bluebook
JIUN YOON, NPI 1548258783, CMS profile ID 749227, IndustryPayments, General Payments, PY2020; 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 1–39 of 39 matching records. This page contains 39 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/a08c4b30-5cf3-4948-ad40-36f404619019. https://industrypayments.org/provider/npi-1548258783?year=2020&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 · PY2020

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

General Payments · PY2020 · Physicians and non-physician practitioners · CMS publication 2026-06-30

39 matching records · $836.54 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 39 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 1–39 of 39.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
PFIZER INC. $22.6212/21/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 743639161 CMS
GENZYME CORPORATION $19.2112/02/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 744221885 CMS
PFIZER INC. $24.3911/18/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 743494883 CMS
kaleo, Inc. $15.8411/16/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 733182005 CMS
GlaxoSmithKline, LLC. $18.6111/12/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 738737353 CMS
GlaxoSmithKline, LLC. $21.7911/06/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 738531085 CMS
GENZYME CORPORATION $20.7410/14/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 744221861 CMS
PFIZER INC. $18.0410/12/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 743356942 CMS
kaleo, Inc. $19.7310/07/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 733182003 CMS
GlaxoSmithKline, LLC. $19.7410/01/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 738585365 CMS
GENZYME CORPORATION $18.1009/21/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 744221857 CMS
GlaxoSmithKline, LLC. $26.1509/18/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 738529671 CMS
AstraZeneca Pharmaceuticals LP $16.6909/16/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 736230271 CMS
PFIZER INC. $22.8709/10/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 743352215 CMS
AstraZeneca Pharmaceuticals LP $16.6408/26/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 735754927 CMS
PFIZER INC. $20.1508/05/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 743233319 CMS
kaleo, Inc. $26.4208/03/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 733182001 CMS
GENZYME CORPORATION $24.3707/27/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 744221840 CMS
GlaxoSmithKline, LLC. $28.7007/24/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 738789655 CMS
AstraZeneca Pharmaceuticals LP $25.5307/21/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 736033819 CMS
kaleo, Inc. $16.0207/06/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 733181999 CMS
PFIZER INC. $5.9207/01/2020 Education No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 743812339 CMS
AstraZeneca Pharmaceuticals LP $17.0306/25/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 735996471 CMS
GlaxoSmithKline, LLC. $21.4306/15/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 738847523 CMS
GENZYME CORPORATION $19.0206/04/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 744221819 CMS
AstraZeneca Pharmaceuticals LP $17.0706/01/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 736370541 CMS
PFIZER INC. $10.9805/18/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 743193239 CMS
AstraZeneca Pharmaceuticals LP $23.5705/07/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 736331191 CMS
GlaxoSmithKline, LLC. $26.4305/04/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 738530401 CMS
AstraZeneca Pharmaceuticals LP $15.8905/01/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 736233143 CMS
GENZYME CORPORATION $13.4404/23/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 744221815 CMS
AstraZeneca Pharmaceuticals LP $20.5904/15/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 736224153 CMS
AstraZeneca Pharmaceuticals LP $17.4603/26/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 735918175 CMS
GENZYME CORPORATION $107.0403/05/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 744221811 CMS
PFIZER INC. $16.4803/05/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 743128985 CMS
AstraZeneca Pharmaceuticals LP $16.0702/24/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 736116261 CMS
GlaxoSmithKline, LLC. $16.1901/24/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 738531185 CMS
PFIZER INC. $10.4801/22/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 743422225 CMS
AstraZeneca Pharmaceuticals LP $19.1001/16/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 736236219 CMS

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

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.