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

TIMOTHY E BYUN

Allopathic & Osteopathic Physicians Internal Medicine Hematology & Oncology

NPI
1871545012
CMS profile
356857
Location
ORANGE, 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 · PY2025 · Entire year

$5,583.21

276 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 . 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

PY2025 · entire year · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $5,560.11 275
Education $23.10 1

By paying entity

PY2025 · entire year · sorted by reported total

Paying entityAmountRecords
AstraZeneca Pharmaceuticals LP $713.10 28
Celgene Corporation $387.08 29
PFIZER INC. $358.97 19
E.R. Squibb & Sons, L.L.C. $289.84 23
ABBVIE INC. $247.12 14
Janssen Biotech, Inc. $232.19 10
ARRAY BIOPHARMA INC $208.73 10
GlaxoSmithKline, LLC. $198.34 16
Incyte Corporation $196.84 16
Daiichi Sankyo Inc. $191.46 8
Astellas Pharma US Inc $179.76 8
Merck Sharp & Dohme LLC $142.71 6
BeOne Medicines USA, Inc. $140.00 4
Eisai Inc. $119.15 4
Geron Corporation $112.86 5
Exelixis Inc. $110.38 4
GENZYME CORPORATION $110.04 4
Bayer Healthcare Pharmaceuticals Inc. $105.49 5
Aveo Pharmaceuticals, Inc. $87.54 3
Gilead Sciences, Inc. $84.86 4
PUMA BIOTECHNOLOGY, INC. $80.93 3
Genmab U.S., Inc. $75.54 3
Pharmacosmos Therapeutics Inc. $74.39 4
Alexion Pharmaceuticals, Inc. $72.45 3
Regeneron Healthcare Solutions, Inc. $69.43 2
Karyopharm Therapeutics Inc. $68.12 3
Blueprint Medicines Corporation $63.16 2
Syndax Pharmaceuticals, Inc. $62.15 2
Genentech USA, Inc. $60.70 2
Takeda Pharmaceuticals U.S.A., Inc. $52.66 2
Novartis Pharmaceuticals Corporation $50.58 2
Ipsen Biopharmaceuticals, Inc $49.98 2
Coherus Oncology, Inc. $49.64 2
EMD Serono, Inc. $49.10 3
PharmaEssentia USA Corporation $48.14 2
Boehringer Ingelheim Pharmaceuticals, Inc. $45.34 2
JAZZ PHARMACEUTICALS INC. $43.85 2
Lilly USA, LLC $40.40 2
Stemline Therapeutics Inc. $39.25 1
Sumitomo Pharma America, Inc. $37.41 2
Deciphera Pharmaceuticals Inc. $28.58 1
ACCORD HEALTHCARE, INC. $24.93 1
SOBI, INC $24.71 1
Rigel Pharmaceuticals, Inc. $23.51 1
RECORDATI_RARE_DISEASES_INC. $22.93 1
Caris MPI, Inc. $22.92 1
Legend Biotech USA Inc. $22.83 1
Iovance Biotherapeutics, Inc. $22.48 1
ADC THERAPEUTICS AMERICA, INC. $20.76 1
CSL Behring $19.88 1

Payment records · PY2025

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

General Payments · PY2025 · Physicians and non-physician practitioners · CMS publication 2026-06-30

276 matching records · $5,583.21 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 276 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 276.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
E.R. Squibb & Sons, L.L.C. $1.9412/23/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261184566529 CMS
Pharmacosmos Therapeutics Inc. $21.7212/23/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261250725956 CMS
Incyte Corporation $15.4512/22/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261226020099 CMS
Incyte Corporation $10.3712/22/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261226020133 CMS
JAZZ PHARMACEUTICALS INC. $19.7112/22/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261234337281 CMS
Aveo Pharmaceuticals, Inc. $33.2312/19/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261199898560 CMS
PUMA BIOTECHNOLOGY, INC. $26.6712/18/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261251745032 CMS
GlaxoSmithKline, LLC. $14.6112/17/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261190456402 CMS
GlaxoSmithKline, LLC. $5.8712/17/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261190480119 CMS
PFIZER INC. $27.5312/17/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261229931300 CMS
ABBVIE INC. $15.3812/16/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261201592481 CMS
AstraZeneca Pharmaceuticals LP $34.1912/12/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261207030561 CMS
Bayer Healthcare Pharmaceuticals Inc. $13.9112/10/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261225482962 CMS
Genmab U.S., Inc. $20.3412/10/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261235929260 CMS
Gilead Sciences, Inc. $14.5612/10/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261234574528 CMS
AstraZeneca Pharmaceuticals LP $32.1312/08/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261206745206 CMS
E.R. Squibb & Sons, L.L.C. $25.9712/08/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261184566523 CMS
Merck Sharp & Dohme LLC $26.6512/05/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261238130877 CMS
E.R. Squibb & Sons, L.L.C. $26.8112/03/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261184566521 CMS
Janssen Biotech, Inc. $9.2512/03/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261174729182 CMS
Janssen Biotech, Inc. $29.9712/03/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261174732972 CMS
BeOne Medicines USA, Inc. $34.0212/02/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261202884936 CMS
Geron Corporation $20.1411/25/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261238887362 CMS
Sumitomo Pharma America, Inc. $21.9111/25/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261176615479 CMS
AstraZeneca Pharmaceuticals LP $24.6211/21/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261207242771 CMS
Merck Sharp & Dohme LLC $22.7311/20/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261238316502 CMS
Daiichi Sankyo Inc. $28.6611/18/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261197002477 CMS
E.R. Squibb & Sons, L.L.C. $2.3011/18/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261184566513 CMS
E.R. Squibb & Sons, L.L.C. $2.1411/18/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261184566515 CMS
E.R. Squibb & Sons, L.L.C. $3.0111/18/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261184566517 CMS
Astellas Pharma US Inc $21.7811/17/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261238587066 CMS
GENZYME CORPORATION $40.6811/17/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261233340944 CMS
GlaxoSmithKline, LLC. $2.0311/17/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261190595077 CMS
GlaxoSmithKline, LLC. $10.2011/17/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261190664583 CMS
Incyte Corporation $19.6611/14/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261225965111 CMS
ABBVIE INC. $26.2911/13/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261201592479 CMS
E.R. Squibb & Sons, L.L.C. $22.5411/13/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261184566519 CMS
ABBVIE INC. $17.7311/12/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261201592477 CMS
Karyopharm Therapeutics Inc. $17.6811/11/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261246652792 CMS
RECORDATI_RARE_DISEASES_INC. $22.9311/11/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261181713344 CMS
Daiichi Sankyo Inc. $26.8911/05/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261197003819 CMS
Genentech USA, Inc. $34.6711/05/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261211601181 CMS
Deciphera Pharmaceuticals Inc. $28.5811/03/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261235958397 CMS
AstraZeneca Pharmaceuticals LP $16.3611/01/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261206870222 CMS
PFIZER INC. $6.4911/01/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261229320849 CMS
BeOne Medicines USA, Inc. $32.7910/31/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261202884938 CMS
E.R. Squibb & Sons, L.L.C. $14.3110/30/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261184566511 CMS
E.R. Squibb & Sons, L.L.C. $12.1210/30/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261184566525 CMS
PFIZER INC. $32.2710/30/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261229840712 CMS
ARRAY BIOPHARMA INC $20.4410/29/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261229963057 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $45,857.71 242
PY2020 $8,207.43 159
PY2021 $8,123.38 221
PY2022 $8,631.42 227
PY2023 $15,051.12 214
PY2024 $6,725.86 235
PY2025 $5,583.21 276

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.

Cite this record.

Plain
TIMOTHY E BYUN, NPI 1871545012. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1871545012.
APA 7
IndustryPayments. (2026). TIMOTHY E BYUN, NPI 1871545012 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1871545012
Bluebook
TIMOTHY E BYUN, NPI 1871545012, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1871545012.

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