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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

WALTER Y TSANG

Allopathic & Osteopathic Physicians Internal Medicine Hematology & Oncology

NPI
1285861799
CMS profile
12921
Location
HIGHLAND, 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.

General Payments · PY2019–2025

  • CMS publication 2026-06-30

Latest program year · PY2025

$4,786.18

204 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 $4,087.46 196
Education $698.72 8

By paying entity

PY2025 · sorted by reported total

Paying entityAmountRecords
Astellas Pharma US Inc $543.85 16
PFIZER INC. $408.67 19
NOVARTIS PHARMACEUTICALS CORPORATION $369.38 22
Bayer HealthCare Pharmaceuticals Inc. $349.25 18
Acerta Pharma LLC $251.37 12
Janssen Biotech, Inc. $218.22 7
ARRAY BIOPHARMA INC $211.40 11
SEAGEN INC. $192.19 2
Celgene Corporation $177.83 11
Genentech USA, Inc. $164.62 7
SOBI, INC $164.43 6
Merck Sharp & Dohme Corporation $157.49 6
Takeda Pharmaceuticals U.S.A., Inc. $150.38 5
EISAI INC. $148.55 7
BeOne Medicines USA, Inc. $132.16 5
E.R. Squibb & Sons, L.L.C. $117.48 6
PharmaEssentia USA Corporation $113.75 4
Karyopharm Therapeutics Inc. $105.36 4
PUMA BIOTECHNOLOGY, INC. $97.22 4
Lilly USA, LLC $95.55 5
Spectrum Pharmaceuticals Inc. $70.57 3
Gilead Sciences, Inc. $63.97 2
Legend Biotech USA Inc. $59.48 2
AVEO Pharmaceuticals, Inc. $59.34 3
Alexion Pharmaceuticals, Inc. $54.10 2
GlaxoSmithKline, LLC. $52.41 3
Adaptive Biotechnologies Corporation $50.41 2
Geron Corporation $50.26 2
TAIHO ONCOLOGY, INC. $46.44 2
Boehringer Ingelheim Pharmaceuticals, Inc. $30.80 1
Rigel Pharmaceuticals, Inc. $17.97 1
Kite Pharma, Inc. $16.38 1
Daiichi Sankyo Inc. $15.73 1
ABBVIE INC. $15.21 1
Amgen Inc. $13.96 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $1,041.93 60
PY2020 $1,047.58 57
PY2021 $3,612.24 134
PY2022 $4,261.96 205
PY2023 $6,393.68 196
PY2024 $4,124.01 177
PY2025 $4,786.18 204

Payment records · PY2025 (204)

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
BeOne Medicines USA, Inc. $22.50 12/18/2025 Food and Beverage No dispute reported 06/30/2026 1202906106 CMS
Spectrum Pharmaceuticals Inc. $32.28 12/17/2025 Food and Beverage No dispute reported 06/30/2026 1221049811 CMS
E.R. Squibb & Sons, L.L.C. $24.19 12/15/2025 Food and Beverage No dispute reported 06/30/2026 1184841305 CMS
ARRAY BIOPHARMA INC $21.94 12/10/2025 Food and Beverage No dispute reported 06/30/2026 1229782046 CMS
AstraZeneca Pharmaceuticals LP $26.85 12/08/2025 Food and Beverage No dispute reported 06/30/2026 1206283184 CMS
Celgene Corporation $27.97 12/05/2025 Food and Beverage No dispute reported 06/30/2026 1184841409 CMS
Rigel Pharmaceuticals, Inc. $17.97 12/05/2025 Food and Beverage No dispute reported 06/30/2026 1247380180 CMS
Novartis Pharmaceuticals Corporation $32.11 12/03/2025 Food and Beverage No dispute reported 06/30/2026 1200397318 CMS
PFIZER INC. $23.91 12/01/2025 Food and Beverage No dispute reported 06/30/2026 1229595038 CMS
GlaxoSmithKline, LLC. $13.94 11/25/2025 Food and Beverage No dispute reported 06/30/2026 1190661575 CMS
Eisai Inc. $26.23 11/21/2025 Food and Beverage No dispute reported 06/30/2026 1244518710 CMS
PFIZER INC. $19.42 11/21/2025 Food and Beverage No dispute reported 06/30/2026 1229607336 CMS
Aveo Pharmaceuticals, Inc. $16.24 11/19/2025 Food and Beverage No dispute reported 06/30/2026 1199900530 CMS
BeOne Medicines USA, Inc. $24.56 11/19/2025 Food and Beverage No dispute reported 06/30/2026 1202906104 CMS
ARRAY BIOPHARMA INC $11.69 11/18/2025 Food and Beverage No dispute reported 06/30/2026 1229367774 CMS
ARRAY BIOPHARMA INC $3.33 11/18/2025 Food and Beverage No dispute reported 06/30/2026 1230088393 CMS
GlaxoSmithKline, LLC. $22.22 11/17/2025 Food and Beverage No dispute reported 06/30/2026 1190359291 CMS
Celgene Corporation $28.61 11/14/2025 Food and Beverage No dispute reported 06/30/2026 1184841407 CMS
Genentech USA, Inc. $21.57 11/14/2025 Food and Beverage No dispute reported 06/30/2026 1211606325 CMS
Astellas Pharma US Inc $16.72 10/22/2025 Food and Beverage No dispute reported 06/30/2026 1238700782 CMS
Lilly USA, LLC $18.78 10/22/2025 Food and Beverage No dispute reported 06/30/2026 1187046545 CMS
Kite Pharma, Inc. $16.38 10/21/2025 Food and Beverage No dispute reported 06/30/2026 1212082463 CMS
Novartis Pharmaceuticals Corporation $24.44 10/20/2025 Food and Beverage No dispute reported 06/30/2026 1200397316 CMS
Geron Corporation $27.46 10/16/2025 Food and Beverage No dispute reported 06/30/2026 1238895353 CMS
Janssen Biotech, Inc. $22.41 10/13/2025 Food and Beverage No dispute reported 06/30/2026 1174630888 CMS
Bayer Healthcare Pharmaceuticals Inc. $32.31 10/10/2025 Food and Beverage No dispute reported 06/30/2026 1225861437 CMS
Genentech USA, Inc. $29.95 10/10/2025 Food and Beverage No dispute reported 06/30/2026 1211606322 CMS
Daiichi Sankyo Inc. $15.73 10/08/2025 Food and Beverage No dispute reported 06/30/2026 1197034479 CMS
PFIZER INC. $27.50 10/08/2025 Food and Beverage No dispute reported 06/30/2026 1229945472 CMS
ARRAY BIOPHARMA INC $24.09 10/07/2025 Food and Beverage No dispute reported 06/30/2026 1229450820 CMS
Bayer Healthcare Pharmaceuticals Inc. $26.73 10/07/2025 Food and Beverage No dispute reported 06/30/2026 1225861445 CMS
ARRAY BIOPHARMA INC $3.15 10/06/2025 Food and Beverage No dispute reported 06/30/2026 1229205397 CMS
Merck Sharp & Dohme LLC $21.12 10/06/2025 Food and Beverage No dispute reported 06/30/2026 1238288021 CMS
Celgene Corporation $23.77 10/03/2025 Food and Beverage No dispute reported 06/30/2026 1184841391 CMS
SOBI, INC $21.77 10/01/2025 Food and Beverage No dispute reported 06/30/2026 1240242136 CMS
Gilead Sciences, Inc. $33.95 09/29/2025 Food and Beverage No dispute reported 06/30/2026 1234420229 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $30.80 09/26/2025 Food and Beverage No dispute reported 06/30/2026 1223028915 CMS
Genentech USA, Inc. $23.92 09/24/2025 Food and Beverage No dispute reported 06/30/2026 1211606309 CMS
AstraZeneca Pharmaceuticals LP $22.65 09/22/2025 Food and Beverage No dispute reported 06/30/2026 1206847144 CMS
GlaxoSmithKline, LLC. $16.25 09/21/2025 Food and Beverage No dispute reported 06/30/2026 1190730130 CMS
Janssen Biotech, Inc. $20.26 09/19/2025 Food and Beverage No dispute reported 06/30/2026 1174630834 CMS
Bayer Healthcare Pharmaceuticals Inc. $9.10 09/18/2025 Food and Beverage No dispute reported 06/30/2026 1225861441 CMS
Novartis Pharmaceuticals Corporation $19.36 09/17/2025 Food and Beverage No dispute reported 06/30/2026 1200521051 CMS
Lilly USA, LLC $19.46 09/16/2025 Food and Beverage No dispute reported 06/30/2026 1186984904 CMS
E.R. Squibb & Sons, L.L.C. $21.86 09/15/2025 Food and Beverage No dispute reported 06/30/2026 1184841383 CMS
PharmaEssentia USA Corporation $31.29 09/12/2025 Food and Beverage No dispute reported 06/30/2026 1246825178 CMS
Eisai Inc. $3.35 09/11/2025 Food and Beverage No dispute reported 06/30/2026 1244518706 CMS
Eisai Inc. $18.26 09/11/2025 Food and Beverage No dispute reported 06/30/2026 1244518708 CMS
Novartis Pharmaceuticals Corporation $23.78 09/10/2025 Food and Beverage No dispute reported 06/30/2026 1200521047 CMS
ARRAY BIOPHARMA INC $26.58 09/08/2025 Food and Beverage No dispute reported 06/30/2026 1229173445 CMS
Astellas Pharma US Inc $8.44 09/08/2025 Food and Beverage No dispute reported 06/30/2026 1238667199 CMS
BeOne Medicines USA, Inc. $37.82 08/30/2025 Food and Beverage No dispute reported 06/30/2026 1202906100 CMS
AstraZeneca Pharmaceuticals LP $14.79 08/28/2025 Food and Beverage No dispute reported 06/30/2026 1206348997 CMS
AstraZeneca Pharmaceuticals LP $15.60 08/28/2025 Food and Beverage No dispute reported 06/30/2026 1206789671 CMS
PFIZER INC. $24.00 08/25/2025 Food and Beverage No dispute reported 06/30/2026 1229175507 CMS
ARRAY BIOPHARMA INC $22.10 08/20/2025 Food and Beverage No dispute reported 06/30/2026 1229093439 CMS
SEAGEN INC. $99.99 08/20/2025 Education No dispute reported 06/30/2026 1229082292 CMS
AstraZeneca Pharmaceuticals LP $25.65 08/18/2025 Food and Beverage No dispute reported 06/30/2026 1207027869 CMS
PUMA BIOTECHNOLOGY, INC. $24.61 08/15/2025 Food and Beverage No dispute reported 06/30/2026 1251749798 CMS
PFIZER INC. $27.93 08/14/2025 Food and Beverage No dispute reported 06/30/2026 1229260527 CMS
Aveo Pharmaceuticals, Inc. $28.08 08/13/2025 Food and Beverage No dispute reported 06/30/2026 1199900528 CMS
E.R. Squibb & Sons, L.L.C. $20.90 08/11/2025 Food and Beverage No dispute reported 06/30/2026 1184841377 CMS
BeOne Medicines USA, Inc. $23.45 08/08/2025 Food and Beverage No dispute reported 06/30/2026 1202906102 CMS
Genentech USA, Inc. $23.86 08/08/2025 Food and Beverage No dispute reported 06/30/2026 1211606305 CMS
PFIZER INC. $22.65 08/08/2025 Food and Beverage No dispute reported 06/30/2026 1229164331 CMS
TAIHO ONCOLOGY, INC. $15.72 08/07/2025 Food and Beverage No dispute reported 06/30/2026 1211413950 CMS
Karyopharm Therapeutics Inc. $27.43 08/06/2025 Food and Beverage No dispute reported 06/30/2026 1246653010 CMS
PharmaEssentia USA Corporation $15.33 08/06/2025 Food and Beverage No dispute reported 06/30/2026 1246825176 CMS
Astellas Pharma US Inc $99.99 08/01/2025 Education No dispute reported 06/30/2026 1238612358 CMS
Astellas Pharma US Inc $99.99 08/01/2025 Education No dispute reported 06/30/2026 1238612360 CMS
Novartis Pharmaceuticals Corporation $19.09 08/01/2025 Food and Beverage No dispute reported 06/30/2026 1200521043 CMS
Novartis Pharmaceuticals Corporation $15.62 07/31/2025 Food and Beverage No dispute reported 06/30/2026 1200521045 CMS
Bayer Healthcare Pharmaceuticals Inc. $18.66 07/30/2025 Food and Beverage No dispute reported 06/30/2026 1225861429 CMS
Merck Sharp & Dohme LLC $29.23 07/28/2025 Food and Beverage No dispute reported 06/30/2026 1238108782 CMS
BeOne Medicines USA, Inc. $23.83 07/25/2025 Food and Beverage No dispute reported 06/30/2026 1202906098 CMS
Merck Sharp & Dohme LLC $22.53 07/25/2025 Food and Beverage No dispute reported 06/30/2026 1238378924 CMS
Janssen Biotech, Inc. $13.58 07/24/2025 Food and Beverage No dispute reported 06/30/2026 1174630878 CMS
Takeda Pharmaceuticals U.S.A., Inc. $29.79 07/24/2025 Food and Beverage No dispute reported 06/30/2026 1223920356 CMS
Alexion Pharmaceuticals, Inc. $27.46 07/23/2025 Food and Beverage No dispute reported 06/30/2026 1202963164 CMS
AstraZeneca Pharmaceuticals LP $32.48 07/21/2025 Food and Beverage No dispute reported 06/30/2026 1207017692 CMS
Novartis Pharmaceuticals Corporation $10.53 07/18/2025 Food and Beverage No dispute reported 06/30/2026 1200521049 CMS
Karyopharm Therapeutics Inc. $24.01 07/17/2025 Food and Beverage No dispute reported 06/30/2026 1246653008 CMS
Novartis Pharmaceuticals Corporation $12.05 07/15/2025 Food and Beverage No dispute reported 06/30/2026 1200521041 CMS
PFIZER INC. $21.52 07/11/2025 Food and Beverage No dispute reported 06/30/2026 1229006311 CMS
AstraZeneca Pharmaceuticals LP $22.27 07/07/2025 Food and Beverage No dispute reported 06/30/2026 1206320972 CMS
E.R. Squibb & Sons, L.L.C. $20.08 07/07/2025 Food and Beverage No dispute reported 06/30/2026 1184841373 CMS
Janssen Biotech, Inc. $22.68 07/07/2025 Food and Beverage No dispute reported 06/30/2026 1174630927 CMS
SEAGEN INC. $92.20 07/03/2025 Education No dispute reported 06/30/2026 1231662958 CMS
Novartis Pharmaceuticals Corporation $5.14 07/02/2025 Food and Beverage No dispute reported 06/30/2026 1200521039 CMS
PFIZER INC. $27.89 07/02/2025 Food and Beverage No dispute reported 06/30/2026 1229266599 CMS
SOBI, INC $24.61 06/30/2025 Food and Beverage No dispute reported 06/30/2026 1240242149 CMS
Karyopharm Therapeutics Inc. $22.42 06/27/2025 Food and Beverage No dispute reported 06/30/2026 1246653006 CMS
AstraZeneca Pharmaceuticals LP $21.82 06/26/2025 Food and Beverage No dispute reported 06/30/2026 1206516986 CMS
ARRAY BIOPHARMA INC $15.97 06/25/2025 Food and Beverage No dispute reported 06/30/2026 1231589757 CMS
Bayer Healthcare Pharmaceuticals Inc. $9.71 06/24/2025 Food and Beverage No dispute reported 06/30/2026 1225861433 CMS
Celgene Corporation $23.03 06/24/2025 Food and Beverage No dispute reported 06/30/2026 1184841371 CMS
Astellas Pharma US Inc $99.00 06/23/2025 Education No dispute reported 06/30/2026 1238610132 CMS
Bayer Healthcare Pharmaceuticals Inc. $25.10 06/20/2025 Food and Beverage No dispute reported 06/30/2026 1225861385 CMS
Astellas Pharma US Inc $17.95 06/18/2025 Food and Beverage No dispute reported 06/30/2026 1238707802 CMS
Bayer Healthcare Pharmaceuticals Inc. $28.29 06/18/2025 Food and Beverage No dispute reported 06/30/2026 1225861421 CMS
Astellas Pharma US Inc $3.93 06/17/2025 Food and Beverage No dispute reported 06/30/2026 1238703104 CMS
PFIZER INC. $26.74 06/16/2025 Food and Beverage No dispute reported 06/30/2026 1228883215 CMS
PFIZER INC. $28.77 06/13/2025 Food and Beverage No dispute reported 06/30/2026 1228916772 CMS
Novartis Pharmaceuticals Corporation $18.54 06/11/2025 Food and Beverage No dispute reported 06/30/2026 1200521029 CMS
Celgene Corporation $9.19 06/10/2025 Food and Beverage No dispute reported 06/30/2026 1184841365 CMS
AstraZeneca Pharmaceuticals LP $19.14 06/06/2025 Food and Beverage No dispute reported 06/30/2026 1206131990 CMS
Legend Biotech USA Inc. $28.82 06/06/2025 Food and Beverage No dispute reported 06/30/2026 1236478878 CMS
PFIZER INC. $24.93 06/06/2025 Food and Beverage No dispute reported 06/30/2026 1231667312 CMS
PFIZER INC. $6.27 06/05/2025 Food and Beverage No dispute reported 06/30/2026 1231609609 CMS
Astellas Pharma US Inc $13.39 06/02/2025 Food and Beverage No dispute reported 06/30/2026 1238805830 CMS
Astellas Pharma US Inc $2.84 06/02/2025 Food and Beverage No dispute reported 06/30/2026 1238805840 CMS
Lilly USA, LLC $23.37 05/30/2025 Food and Beverage No dispute reported 06/30/2026 1186993506 CMS
Bayer Healthcare Pharmaceuticals Inc. $30.20 05/28/2025 Food and Beverage No dispute reported 06/30/2026 1225861417 CMS
Novartis Pharmaceuticals Corporation $17.91 05/23/2025 Food and Beverage No dispute reported 06/30/2026 1200521037 CMS
Genentech USA, Inc. $17.70 05/22/2025 Food and Beverage No dispute reported 06/30/2026 1211606317 CMS
E.R. Squibb & Sons, L.L.C. $14.00 05/19/2025 Food and Beverage No dispute reported 06/30/2026 1184841363 CMS
ARRAY BIOPHARMA INC $23.97 05/18/2025 Food and Beverage No dispute reported 06/30/2026 1231716868 CMS
PFIZER INC. $13.25 05/16/2025 Food and Beverage No dispute reported 06/30/2026 1228895176 CMS
Takeda Pharmaceuticals U.S.A., Inc. $27.69 05/15/2025 Food and Beverage No dispute reported 06/30/2026 1223911365 CMS
Bayer Healthcare Pharmaceuticals Inc. $9.66 05/13/2025 Food and Beverage No dispute reported 06/30/2026 1225861405 CMS
Janssen Biotech, Inc. $24.92 05/12/2025 Food and Beverage No dispute reported 06/30/2026 1174630896 CMS
Janssen Biotech, Inc. $99.00 05/12/2025 Education No dispute reported 06/30/2026 1174630907 CMS
Bayer Healthcare Pharmaceuticals Inc. $31.02 05/09/2025 Food and Beverage No dispute reported 06/30/2026 1225861401 CMS
Bayer Healthcare Pharmaceuticals Inc. $8.60 05/09/2025 Education No dispute reported 06/30/2026 1225861425 CMS
Eisai Inc. $25.53 05/09/2025 Food and Beverage No dispute reported 06/30/2026 1244518704 CMS
Aveo Pharmaceuticals, Inc. $15.02 05/07/2025 Food and Beverage No dispute reported 06/30/2026 1199900526 CMS
Celgene Corporation $20.33 05/07/2025 Food and Beverage No dispute reported 06/30/2026 1184841357 CMS
Bayer Healthcare Pharmaceuticals Inc. $9.09 05/06/2025 Food and Beverage No dispute reported 06/30/2026 1225861414 CMS
Merck Sharp & Dohme LLC $26.39 05/05/2025 Food and Beverage No dispute reported 06/30/2026 1238108784 CMS
Geron Corporation $22.80 05/02/2025 Food and Beverage No dispute reported 06/30/2026 1238895349 CMS
PFIZER INC. $8.55 05/01/2025 Food and Beverage No dispute reported 06/30/2026 1231733957 CMS
PFIZER INC. $9.59 05/01/2025 Food and Beverage No dispute reported 06/30/2026 1231734342 CMS
Celgene Corporation $9.54 04/30/2025 Food and Beverage No dispute reported 06/30/2026 1184841349 CMS
Celgene Corporation $7.74 04/30/2025 Food and Beverage No dispute reported 06/30/2026 1184841351 CMS
Celgene Corporation $18.79 04/25/2025 Food and Beverage No dispute reported 06/30/2026 1184841343 CMS
Celgene Corporation $1.02 04/25/2025 Food and Beverage No dispute reported 06/30/2026 1184841345 CMS
Karyopharm Therapeutics Inc. $31.50 04/25/2025 Food and Beverage No dispute reported 06/30/2026 1246653004 CMS
ARRAY BIOPHARMA INC $28.59 04/24/2025 Food and Beverage No dispute reported 06/30/2026 1231618762 CMS
Novartis Pharmaceuticals Corporation $14.78 04/23/2025 Food and Beverage No dispute reported 06/30/2026 1200521033 CMS
Novartis Pharmaceuticals Corporation $2.46 04/23/2025 Food and Beverage No dispute reported 06/30/2026 1200521035 CMS
ABBVIE INC. $15.21 04/21/2025 Food and Beverage No dispute reported 06/30/2026 1204578275 CMS
Bayer Healthcare Pharmaceuticals Inc. $9.63 04/21/2025 Food and Beverage No dispute reported 06/30/2026 1225861397 CMS
PFIZER INC. $20.50 04/21/2025 Food and Beverage No dispute reported 06/30/2026 1231434010 CMS
PharmaEssentia USA Corporation $32.88 04/18/2025 Food and Beverage No dispute reported 06/30/2026 1246825130 CMS
Astellas Pharma US Inc $17.14 04/17/2025 Food and Beverage No dispute reported 06/30/2026 1238780005 CMS
ARRAY BIOPHARMA INC $29.99 04/16/2025 Food and Beverage No dispute reported 06/30/2026 1228853357 CMS
Novartis Pharmaceuticals Corporation $22.99 04/14/2025 Food and Beverage No dispute reported 06/30/2026 1200521025 CMS
PFIZER INC. $28.91 04/11/2025 Food and Beverage No dispute reported 06/30/2026 1228966066 CMS
Adaptive Biotechnologies Corporation $26.95 04/10/2025 Food and Beverage No dispute reported 06/30/2026 1254941316 CMS
Novartis Pharmaceuticals Corporation $15.57 04/09/2025 Food and Beverage No dispute reported 06/30/2026 1200521027 CMS
Gilead Sciences, Inc. $30.02 04/07/2025 Food and Beverage No dispute reported 06/30/2026 1234437626 CMS
Merck Sharp & Dohme LLC $27.91 04/07/2025 Food and Beverage No dispute reported 06/30/2026 1238107460 CMS
Janssen Biotech, Inc. $15.37 04/01/2025 Food and Beverage No dispute reported 06/30/2026 1174630843 CMS
PharmaEssentia USA Corporation $34.25 03/28/2025 Food and Beverage No dispute reported 06/30/2026 1246825134 CMS
AstraZeneca Pharmaceuticals LP $4.07 03/26/2025 Food and Beverage No dispute reported 06/30/2026 1207044161 CMS
AstraZeneca Pharmaceuticals LP $23.20 03/25/2025 Food and Beverage No dispute reported 06/30/2026 1206372797 CMS
Eisai Inc. $24.78 03/25/2025 Food and Beverage No dispute reported 06/30/2026 1244518700 CMS
Eisai Inc. $29.80 03/21/2025 Food and Beverage No dispute reported 06/30/2026 1244518702 CMS
PUMA BIOTECHNOLOGY, INC. $18.15 03/20/2025 Food and Beverage No dispute reported 06/30/2026 1251743006 CMS
Takeda Pharmaceuticals U.S.A., Inc. $32.93 03/20/2025 Food and Beverage No dispute reported 06/30/2026 1223930332 CMS
Alexion Pharmaceuticals, Inc. $26.64 03/19/2025 Food and Beverage No dispute reported 06/30/2026 1202965482 CMS
SOBI, INC $24.97 03/18/2025 Food and Beverage No dispute reported 06/30/2026 1240242154 CMS
Novartis Pharmaceuticals Corporation $18.20 03/12/2025 Food and Beverage No dispute reported 06/30/2026 1200521013 CMS
Astellas Pharma US Inc $99.95 03/11/2025 Education No dispute reported 06/30/2026 1238608152 CMS
Novartis Pharmaceuticals Corporation $22.49 03/11/2025 Food and Beverage No dispute reported 06/30/2026 1200521017 CMS
Novartis Pharmaceuticals Corporation $13.10 03/11/2025 Food and Beverage No dispute reported 06/30/2026 1200521023 CMS
Bayer Healthcare Pharmaceuticals Inc. $26.99 03/07/2025 Food and Beverage No dispute reported 06/30/2026 1225861409 CMS
Adaptive Biotechnologies Corporation $23.46 03/06/2025 Food and Beverage No dispute reported 06/30/2026 1254941292 CMS
Lilly USA, LLC $20.01 03/05/2025 Food and Beverage No dispute reported 06/30/2026 1187005414 CMS
Genentech USA, Inc. $23.53 03/03/2025 Food and Beverage No dispute reported 06/30/2026 1211606313 CMS
Spectrum Pharmaceuticals Inc. $19.58 02/28/2025 Food and Beverage No dispute reported 06/30/2026 1221050023 CMS
TAIHO ONCOLOGY, INC. $30.72 02/28/2025 Food and Beverage No dispute reported 06/30/2026 1211404174 CMS
AstraZeneca Pharmaceuticals LP $22.85 02/26/2025 Food and Beverage No dispute reported 06/30/2026 1206654906 CMS
Genentech USA, Inc. $24.09 02/26/2025 Food and Beverage No dispute reported 06/30/2026 1211606301 CMS
SOBI, INC $25.15 02/26/2025 Food and Beverage No dispute reported 06/30/2026 1240242146 CMS
E.R. Squibb & Sons, L.L.C. $16.45 02/25/2025 Food and Beverage No dispute reported 06/30/2026 1184841319 CMS
Novartis Pharmaceuticals Corporation $13.32 02/25/2025 Food and Beverage No dispute reported 06/30/2026 1200521021 CMS
Bayer Healthcare Pharmaceuticals Inc. $2.52 02/21/2025 Food and Beverage No dispute reported 06/30/2026 1225861377 CMS
Bayer Healthcare Pharmaceuticals Inc. $29.32 02/21/2025 Food and Beverage No dispute reported 06/30/2026 1225861381 CMS
Bayer Healthcare Pharmaceuticals Inc. $31.70 02/19/2025 Food and Beverage No dispute reported 06/30/2026 1225861389 CMS
Bayer Healthcare Pharmaceuticals Inc. $10.62 02/18/2025 Food and Beverage No dispute reported 06/30/2026 1225861393 CMS
Merck Sharp & Dohme LLC $30.31 02/18/2025 Food and Beverage No dispute reported 06/30/2026 1238244881 CMS
PFIZER INC. $26.03 02/14/2025 Food and Beverage No dispute reported 06/30/2026 1231640370 CMS
Astellas Pharma US Inc $11.36 02/12/2025 Food and Beverage No dispute reported 06/30/2026 1238742294 CMS
Astellas Pharma US Inc $2.84 02/11/2025 Food and Beverage No dispute reported 06/30/2026 1238742726 CMS
Astellas Pharma US Inc $9.21 02/11/2025 Food and Beverage No dispute reported 06/30/2026 1238742732 CMS
Celgene Corporation $7.84 02/07/2025 Food and Beverage No dispute reported 06/30/2026 1184841315 CMS
Amgen Inc. $13.96 02/05/2025 Food and Beverage No dispute reported 06/30/2026 1227106440 CMS
Novartis Pharmaceuticals Corporation $19.10 02/05/2025 Food and Beverage No dispute reported 06/30/2026 1200521015 CMS
PFIZER INC. $20.31 02/04/2025 Food and Beverage No dispute reported 06/30/2026 1229665412 CMS
Spectrum Pharmaceuticals Inc. $18.71 01/31/2025 Food and Beverage No dispute reported 06/30/2026 1221050277 CMS
PUMA BIOTECHNOLOGY, INC. $27.56 01/30/2025 Food and Beverage No dispute reported 06/30/2026 1251742384 CMS
Astellas Pharma US Inc $21.09 01/28/2025 Food and Beverage No dispute reported 06/30/2026 1238724008 CMS
Takeda Pharmaceuticals U.S.A., Inc. $26.74 01/24/2025 Food and Beverage No dispute reported 06/30/2026 1223906589 CMS
Takeda Pharmaceuticals U.S.A., Inc. $33.23 01/23/2025 Food and Beverage No dispute reported 06/30/2026 1223931032 CMS
Eisai Inc. $20.60 01/22/2025 Food and Beverage No dispute reported 06/30/2026 1244518698 CMS
SOBI, INC $38.56 01/21/2025 Food and Beverage No dispute reported 06/30/2026 1240242141 CMS
SOBI, INC $29.37 01/17/2025 Food and Beverage No dispute reported 06/30/2026 1240242132 CMS
Astellas Pharma US Inc $20.01 01/14/2025 Food and Beverage No dispute reported 06/30/2026 1238719306 CMS
Lilly USA, LLC $13.93 01/14/2025 Food and Beverage No dispute reported 06/30/2026 1186984906 CMS
PUMA BIOTECHNOLOGY, INC. $26.90 01/13/2025 Food and Beverage No dispute reported 06/30/2026 1251743746 CMS
Novartis Pharmaceuticals Corporation $13.62 01/07/2025 Food and Beverage No dispute reported 06/30/2026 1200521009 CMS
Novartis Pharmaceuticals Corporation $15.18 01/07/2025 Food and Beverage No dispute reported 06/30/2026 1200521011 CMS
Legend Biotech USA Inc. $30.66 01/03/2025 Food and Beverage No dispute reported 06/30/2026 1236478876 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.

Permalink https://industrypayments.org/provider/npi-1285861799

Plain
WALTER Y TSANG, NPI 1285861799. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1285861799.
APA 7
IndustryPayments. (2026). WALTER Y TSANG, NPI 1285861799 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1285861799
Bluebook
WALTER Y TSANG, NPI 1285861799, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1285861799.

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