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

HIROSHI YAMAGATA

Allopathic & Osteopathic Physicians Internal Medicine Hematology & Oncology

NPI
1871948950
CMS profile
4217142
Location
CERRITOS, 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

$4,341.25

146 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

PY2025 · entire year · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $2,964.55 129
Long term medical supply or device loan $1,081.81 12
Education $294.89 5

By paying entity

PY2025 · entire year · sorted by reported total

Paying entityAmountRecords
Novartis Pharmaceuticals Corporation $1,261.65 24
AstraZeneca Pharmaceuticals LP $337.16 8
BeOne Medicines USA, Inc. $234.51 8
Janssen Biotech, Inc. $210.04 8
PFIZER INC. $208.69 10
Celgene Corporation $168.16 11
SEAGEN INC. $148.99 2
ARRAY BIOPHARMA INC $140.23 6
Daiichi Sankyo Inc. $122.51 5
E.R. Squibb & Sons, L.L.C. $100.53 5
Merck Sharp & Dohme LLC $93.72 4
BeiGene USA, Inc. $91.40 3
Incyte Corporation $79.59 4
Eisai Inc. $75.99 3
Karyopharm Therapeutics Inc. $68.21 3
PharmaEssentia USA Corporation $67.86 2
TAIHO ONCOLOGY, INC. $61.56 3
GlaxoSmithKline, LLC. $54.45 3
Boehringer Ingelheim Pharmaceuticals, Inc. $53.15 2
Sumitomo Pharma America, Inc. $52.47 3
PUMA BIOTECHNOLOGY, INC. $50.50 2
Regeneron Healthcare Solutions, Inc. $49.09 2
Aveo Pharmaceuticals, Inc. $47.96 2
Astellas Pharma US Inc $44.24 2
SUN PHARMACEUTICAL INDUSTRIES INC. $42.00 1
Lilly USA, LLC $38.20 2
Azurity Pharmaceuticals, Inc. $35.61 2
ABBVIE INC. $34.17 1
Ipsen Biopharmaceuticals, Inc $32.06 1
Dendreon Pharmaceuticals LLC $32.05 1
Verity Pharmaceuticals Inc. $30.92 1
Syndax Pharmaceuticals, Inc. $28.50 1
Alnylam Pharmaceuticals Inc. $27.79 1
Rigel Pharmaceuticals, Inc. $27.74 1
SOBI, INC $24.41 1
SERVIER PHARMACEUTICALS LLC $23.87 1
Apellis Pharmaceuticals, Inc. $22.22 1
Geron Corporation $22.11 1
Takeda Pharmaceuticals U.S.A., Inc. $21.60 1
Exact Sciences Corporation $21.12 1
Bayer Healthcare Pharmaceuticals Inc. $19.83 1
Blueprint Medicines Corporation $18.37 1
Exelixis Inc. $16.02 1

Page 2 of 3; records 51–100 of 146 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

HIROSHI YAMAGATA

NPI 1871948950 · CMS profile ID 4217142

Allopathic & Osteopathic Physicians / Internal Medicine / Hematology & Oncology

CERRITOS, 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.

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, PY2025; 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 146 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1871948950?year=2025&recipient=provider&page=2#records-h

CMS source: https://openpaymentsdata.cms.gov/dataset/fb0b1734-1410-429d-92f6-3f4b35218e5e

Cite these filtered records

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

Plain
HIROSHI YAMAGATA, NPI 1871948950, CMS profile ID 4217142. General Payments, PY2025; 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 146 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1871948950?year=2025&recipient=provider&page=2#records-h. Source: https://openpaymentsdata.cms.gov/dataset/fb0b1734-1410-429d-92f6-3f4b35218e5e.
APA 7
IndustryPayments. (2026). HIROSHI YAMAGATA, NPI 1871948950, CMS profile ID 4217142. General Payments, PY2025; 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 146 matching records. This page contains 50 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1871948950?year=2025&recipient=provider&page=2#records-h. Source: https://openpaymentsdata.cms.gov/dataset/fb0b1734-1410-429d-92f6-3f4b35218e5e.
Bluebook
HIROSHI YAMAGATA, NPI 1871948950, CMS profile ID 4217142, IndustryPayments, General Payments, PY2025; 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 146 matching records. This page contains 50 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/fb0b1734-1410-429d-92f6-3f4b35218e5e. https://industrypayments.org/provider/npi-1871948950?year=2025&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.

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

146 matching records · $4,341.25 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 146 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 146.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Eisai Inc. $27.3106/05/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1244482834 CMS
Verity Pharmaceuticals Inc. $30.9206/05/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1234197840 CMS
ARRAY BIOPHARMA INC $27.8706/04/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1229403993 CMS
GlaxoSmithKline, LLC. $20.5605/29/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1191220146 CMS
AstraZeneca Pharmaceuticals LP $24.5305/28/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1206403711 CMS
Janssen Biotech, Inc. $0.8305/27/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1174571578 CMS
Janssen Biotech, Inc. $21.4805/27/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1174572241 CMS
PharmaEssentia USA Corporation $34.7405/21/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1246824764 CMS
Lilly USA, LLC $16.0505/20/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1186622822 CMS
AstraZeneca Pharmaceuticals LP $34.3905/16/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1206623608 CMS
Incyte Corporation $19.5305/15/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1226129798 CMS
Novartis Pharmaceuticals Corporation $99.7005/15/2025 Long term medical supply or device loan No dispute reported Delay: No
Change: NEW
06/30/2026 1200543161 CMS
PFIZER INC. $17.1305/15/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1229013401 CMS
Merck Sharp & Dohme LLC $24.7505/14/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1238107796 CMS
BeOne Medicines USA, Inc. $27.6805/13/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1202895416 CMS
BeOne Medicines USA, Inc. $36.7805/12/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1202895418 CMS
Karyopharm Therapeutics Inc. $26.3305/08/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1246645921 CMS
Karyopharm Therapeutics Inc. $13.6105/07/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1246645917 CMS
SEAGEN INC. $99.0005/05/2025 Education No dispute reported Delay: No
Change: NEW
06/30/2026 1229180784 CMS
Azurity Pharmaceuticals, Inc. $16.0305/02/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1242681554 CMS
Novartis Pharmaceuticals Corporation $17.2205/02/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1200543179 CMS
Novartis Pharmaceuticals Corporation $27.5205/02/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1200543181 CMS
Blueprint Medicines Corporation $18.3705/01/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1235816641 CMS
PFIZER INC. $22.0304/29/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1229156140 CMS
GlaxoSmithKline, LLC. $18.5304/28/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1190972012 CMS
ARRAY BIOPHARMA INC $27.4204/25/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1229188290 CMS
Novartis Pharmaceuticals Corporation $99.7004/24/2025 Long term medical supply or device loan No dispute reported Delay: No
Change: NEW
06/30/2026 1200543163 CMS
TAIHO ONCOLOGY, INC. $24.2204/23/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1211405418 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $22.6804/22/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1223020270 CMS
Janssen Biotech, Inc. $99.9504/21/2025 Education No dispute reported Delay: No
Change: NEW
06/30/2026 1174571700 CMS
Janssen Biotech, Inc. $21.4104/21/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1174572636 CMS
Incyte Corporation $18.6504/19/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1226117038 CMS
Incyte Corporation $22.9504/17/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1226117045 CMS
ARRAY BIOPHARMA INC $21.3404/15/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1229171639 CMS
Janssen Biotech, Inc. $25.7504/14/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1174571731 CMS
Celgene Corporation $12.1904/11/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1184686511 CMS
Merck Sharp & Dohme LLC $17.0104/10/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1238287307 CMS
BeOne Medicines USA, Inc. $28.7904/08/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1202895408 CMS
E.R. Squibb & Sons, L.L.C. $16.9704/08/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1184686515 CMS
E.R. Squibb & Sons, L.L.C. $19.6004/04/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1184686513 CMS
ABBVIE INC. $34.1704/02/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1204806877 CMS
AstraZeneca Pharmaceuticals LP $86.4004/02/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1206989665 CMS
PFIZER INC. $19.3604/01/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1229187358 CMS
Daiichi Sankyo Inc. $24.6903/31/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1197059183 CMS
BeOne Medicines USA, Inc. $31.9403/28/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1202895410 CMS
Celgene Corporation $17.6303/28/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1184686509 CMS
Exelixis Inc. $16.0203/28/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1218795005 CMS
Celgene Corporation $18.6203/26/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1184686499 CMS
Novartis Pharmaceuticals Corporation $99.7003/26/2025 Long term medical supply or device loan No dispute reported Delay: No
Change: NEW
06/30/2026 1200543159 CMS
Novartis Pharmaceuticals Corporation $5.8803/25/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1200543177 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2021 $304.15 3
PY2022 $266.74 3
PY2023 $1,395.15 45
PY2024 $6,459.90 271
PY2025 $4,341.25 146

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
2021, 2022, 2023, 2024, 2025
Source files and profile matching
Source files
Dataset page · Bulk file · 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.