Covered recipient · General Payments record

MICHAEL S CHUNG

Allopathic & Osteopathic Physicians Internal Medicine Hematology & Oncology

NPI: 1053574608
CMS profile: 319807
Location: TORRANCE, CA

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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General Payments · PY2020 · Entire year

$2,281.17

121 records · 0 disputed

Summary and payment records

CMS publication 2026-06-30

Read the payment records

Other CMS categories — not shown on this page

Research Payments

CMS also publishes Research Payments as a separate dataset. This site does not currently mirror it, and no research figure is shown on this page. This provider appears in that dataset.

“If you are a physician who served as a principal investigator on a research study, you may see the payments associated with that research study listed under your name. This does not necessarily mean the payments are attributed to you. The dollar amount of the record corresponds to the total payment; the amounts are not attributed to each individual on the record.”
— Centers for Medicare & Medicaid Services, Open Payments Frequently Asked Questions, FAQ #12224

These records are published by CMS and can be viewed on this provider’s official CMS record. View this provider on CMS Open Payments ↗

“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 July 26, 2026. 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 payment	Amount	Records
Food and Beverage	$2,122.41	116
Education	$158.76	5

By paying entity

PY2020 · entire year · sorted by reported total

Paying entity	Amount	Records
E.R. Squibb & Sons, L.L.C.	$259.96	16
Incyte Corporation	$150.38	4
Exelixis Inc.	$145.95	6
PFIZER INC.	$142.29	10
GlaxoSmithKline, LLC.	$135.98	8
Novartis Pharmaceuticals Corporation	$124.47	7
Merck Sharp & Dohme Corporation	$112.39	6
Amgen Inc.	$86.62	4
Eisai Inc.	$76.16	4
Alexion Pharmaceuticals, Inc.	$72.50	4
Secura Bio, Inc.	$69.17	7
GENZYME CORPORATION	$67.97	4
AstraZeneca Pharmaceuticals LP	$60.56	3
Astellas Pharma US Inc	$59.20	3
EUSA Pharma (US) LLC	$56.23	3
Genentech USA, Inc.	$51.80	3
Pharmacyclics LLC, An AbbVie Company	$44.46	2
Blueprint Medicines Corporation	$43.79	2
Daiichi Sankyo Inc.	$37.83	2
Agios Pharmaceuticals, Inc.	$35.49	2
Dova Pharmaceuticals	$32.93	2
Celgene Corporation	$31.35	1
Kite Pharma, Inc.	$30.03	1
Seagen Inc.	$29.05	1
Boehringer Ingelheim Pharmaceuticals, Inc.	$28.90	2
Dendreon Pharmaceuticals LLC	$27.32	1
Regeneron Healthcare Solutions, Inc.	$26.16	1
AMAG Pharmaceuticals, Inc.	$24.92	1
Ipsen Biopharmaceuticals, Inc	$22.53	1
Amarin Pharma Inc.	$20.53	1
Kyowa Kirin, Inc.	$20.49	1
Taiho Oncology, Inc.	$20.43	1
Rigel Pharmaceuticals, Inc.	$20.13	1
Epizyme, Inc.,	$19.53	1
Foundation Medicine, Inc.	$19.50	1
Bayer HealthCare Pharmaceuticals Inc.	$19.09	1
Janssen Biotech, Inc.	$18.88	1
Lilly USA, LLC	$18.64	1
Global Blood Therapeutics, Inc.	$17.56	1

Page 2 of 3; records 51–100 of 121 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

MICHAEL S CHUNG

NPI 1053574608 · CMS profile ID 319807

Allopathic & Osteopathic Physicians / Internal Medicine / Hematology & Oncology

TORRANCE, CA

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 2 of 3; records 51–100 of 121 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1053574608?year=2020&recipient=provider&page=2#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: MICHAEL S CHUNG, NPI 1053574608, CMS profile ID 319807. 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 2 of 3; records 51–100 of 121 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1053574608?year=2020&recipient=provider&page=2#records-h. Source: https://openpaymentsdata.cms.gov/dataset/a08c4b30-5cf3-4948-ad40-36f404619019.
APA 7: IndustryPayments. (2026). MICHAEL S CHUNG, NPI 1053574608, CMS profile ID 319807. 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 2 of 3; records 51–100 of 121 matching records. This page contains 50 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1053574608?year=2020&recipient=provider&page=2#records-h. Source: https://openpaymentsdata.cms.gov/dataset/a08c4b30-5cf3-4948-ad40-36f404619019.
Bluebook: MICHAEL S CHUNG, NPI 1053574608, CMS profile ID 319807, 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 2 of 3; records 51–100 of 121 matching records. This page contains 50 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/a08c4b30-5cf3-4948-ad40-36f404619019. https://industrypayments.org/provider/npi-1053574608?year=2020&recipient=provider&page=2#records-h.

Centers for Medicare & Medicaid Services, Open Payments

Citation formats are provided for reference; check the requirements of your publication.

General Payments only. Research Payments and Ownership/Investment Interests are separate datasets and are not included.

Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.

Centers for Medicare & Medicaid Services, Open Payments

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.

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.

IndustryPayments.org is not a consumer reporting agency as defined by the Fair Credit Reporting Act. Do not use this site to determine any person's eligibility for employment, credentialing, insurance, credit, housing, or any other purpose covered by the FCRA.

Methodology: https://industrypayments.org/methodology

Payment records · PY2020

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

Reporting company Nature of payment

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

121 matching records · $2,281.17 reported total · 0 disputed

Nature of payment: All payment types

Records imported here November 5, 2026 (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 121 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 51–100 of 121.

Paying entity	Amount	Date	Nature of payment	Dispute status	Publication flags	Published	Record ID	Source
PFIZER INC.	$13.34	08/14/2020	Education	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	743812991	CMS
E.R. Squibb & Sons, L.L.C.	$23.23	08/12/2020	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	727871293	CMS
GlaxoSmithKline, LLC.	$22.74	08/10/2020	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	738490707	CMS
Astellas Pharma US Inc	$17.46	08/05/2020	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	718309929	CMS
Merck Sharp & Dohme Corporation	$19.27	07/31/2020	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	747734133	CMS
E.R. Squibb & Sons, L.L.C.	$13.55	07/30/2020	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	727871291	CMS
Secura Bio, Inc.	$17.30	07/28/2020	Food and Beverage	No dispute reported	Delay: No Change: CHANGED	06/30/2026	733547317	CMS
Novartis Pharmaceuticals Corporation	$13.60	07/27/2020	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	725645977	CMS
E.R. Squibb & Sons, L.L.C.	$11.34	07/22/2020	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	727871179	CMS
GlaxoSmithKline, LLC.	$34.39	07/18/2020	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	738490601	CMS
Merck Sharp & Dohme Corporation	$15.33	07/16/2020	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	747660939	CMS
Eisai Inc.	$18.07	07/15/2020	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	751209825	CMS
Global Blood Therapeutics, Inc.	$17.56	07/15/2020	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	742104165	CMS
Dova Pharmaceuticals	$17.12	07/14/2020	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	752353095	CMS
Merck Sharp & Dohme Corporation	$19.85	07/07/2020	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	747702881	CMS
Rigel Pharmaceuticals, Inc.	$20.13	07/02/2020	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	752093537	CMS
GlaxoSmithKline, LLC.	$2.19	06/30/2020	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	738825303	CMS
GlaxoSmithKline, LLC.	$14.80	06/30/2020	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	738877931	CMS
Dendreon Pharmaceuticals LLC	$27.32	06/25/2020	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	749834431	CMS
Agios Pharmaceuticals, Inc.	$13.84	06/18/2020	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	751971631	CMS
EUSA Pharma (US) LLC	$21.65	06/18/2020	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	750863713	CMS
Amgen Inc.	$13.29	06/16/2020	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	741231077	CMS
GlaxoSmithKline, LLC.	$17.00	06/09/2020	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	738616425	CMS
Incyte Corporation	$20.57	06/09/2020	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	745794827	CMS
Seagen Inc.	$29.05	06/04/2020	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	732437851	CMS
E.R. Squibb & Sons, L.L.C.	$18.42	06/03/2020	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	727871173	CMS
Exelixis Inc.	$34.85	06/03/2020	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	737176091	CMS
GENZYME CORPORATION	$12.42	05/26/2020	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	744013321	CMS
Amarin Pharma Inc.	$20.53	05/20/2020	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	739968469	CMS
Alexion Pharmaceuticals, Inc.	$17.01	05/14/2020	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	726656681	CMS
GENZYME CORPORATION	$20.98	05/04/2020	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	744013319	CMS
Genentech USA, Inc.	$11.56	04/27/2020	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	743062641	CMS
Pharmacyclics LLC, An AbbVie Company	$21.02	04/24/2020	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	725664521	CMS
E.R. Squibb & Sons, L.L.C.	$14.12	04/23/2020	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	727871167	CMS
E.R. Squibb & Sons, L.L.C.	$20.79	04/17/2020	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	727871155	CMS
Genentech USA, Inc.	$18.32	04/14/2020	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	743062635	CMS
Blueprint Medicines Corporation	$19.79	04/10/2020	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	750718787	CMS
Exelixis Inc.	$15.70	03/30/2020	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	737175395	CMS
GENZYME CORPORATION	$17.40	03/27/2020	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	744013317	CMS
PFIZER INC.	$15.18	03/13/2020	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	743138221	CMS
E.R. Squibb & Sons, L.L.C.	$14.87	03/12/2020	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	727871149	CMS
Secura Bio, Inc.	$1.84	03/12/2020	Food and Beverage	No dispute reported	Delay: No Change: CHANGED	06/30/2026	733548107	CMS
Secura Bio, Inc.	$15.97	03/11/2020	Food and Beverage	No dispute reported	Delay: No Change: CHANGED	06/30/2026	733548121	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$16.28	03/06/2020	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	720728957	CMS
GlaxoSmithKline, LLC.	$9.72	03/03/2020	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	738581861	CMS
Alexion Pharmaceuticals, Inc.	$16.71	03/02/2020	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	726656685	CMS
Kite Pharma, Inc.	$30.03	02/27/2020	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	731505149	CMS
Incyte Corporation	$13.17	02/26/2020	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	745794781	CMS
Novartis Pharmaceuticals Corporation	$20.24	02/25/2020	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	725645973	CMS
Novartis Pharmaceuticals Corporation	$22.04	02/24/2020	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	725645969	CMS

By program year

All program years on this page · sorted by year

Program year	Amount	Records
PY2019	$2,820.41	158
PY2020	$2,281.17	121
PY2021	$3,592.86	159
PY2022	$10,525.52	275
PY2023	$5,327.01	232
PY2024	$7,116.86	324
PY2025	$8,066.82	377

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

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.