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

RYON K NAKASONE

Allopathic & Osteopathic Physicians Internal Medicine Hematology & Oncology

NPI
1114138351
CMS profile
5344
Location
HONOLULU, HI

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

$2,732.72

115 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 $2,652.72 114
Education $80.00 1

By paying entity

PY2025 · entire year · sorted by reported total

Page 1 of 3; records 1–50 of 115 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

RYON K NAKASONE

NPI 1114138351 · CMS profile ID 5344

Allopathic & Osteopathic Physicians / Internal Medicine / Hematology & Oncology

HONOLULU, HI

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 1 of 3; records 1–50 of 115 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1114138351?year=2025&recipient=provider#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
RYON K NAKASONE, NPI 1114138351, CMS profile ID 5344. 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 1 of 3; records 1–50 of 115 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1114138351?year=2025&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/fb0b1734-1410-429d-92f6-3f4b35218e5e.
APA 7
IndustryPayments. (2026). RYON K NAKASONE, NPI 1114138351, CMS profile ID 5344. 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 1 of 3; records 1–50 of 115 matching records. This page contains 50 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1114138351?year=2025&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/fb0b1734-1410-429d-92f6-3f4b35218e5e.
Bluebook
RYON K NAKASONE, NPI 1114138351, CMS profile ID 5344, 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 1 of 3; records 1–50 of 115 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-1114138351?year=2025&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 · 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

115 matching records · $2,732.72 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 115 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 115.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
ABBVIE INC. $26.1512/17/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1203225393 CMS
Janssen Biotech, Inc. $18.4012/17/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1175417783 CMS
Takeda Pharmaceuticals U.S.A., Inc. $32.2512/11/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1223928704 CMS
AstraZeneca Pharmaceuticals LP $30.5212/04/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1206830291 CMS
Incyte Corporation $19.9212/04/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1225966349 CMS
AstraZeneca Pharmaceuticals LP $24.1412/03/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1207157456 CMS
Janssen Biotech, Inc. $24.1711/11/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1175418350 CMS
Novartis Pharmaceuticals Corporation $20.3011/07/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1200685664 CMS
Incyte Corporation $80.0011/05/2025 Education No dispute reported Delay: No
Change: NEW
06/30/2026 1225970530 CMS
Takeda Pharmaceuticals U.S.A., Inc. $33.1310/31/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1223930810 CMS
PFIZER INC. $21.5710/29/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1229369962 CMS
E.R. Squibb & Sons, L.L.C. $25.0410/23/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1184928511 CMS
Merck Sharp & Dohme LLC $19.3410/22/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1238095593 CMS
Novartis Pharmaceuticals Corporation $23.6710/21/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1200685662 CMS
AstraZeneca Pharmaceuticals LP $23.4410/16/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1206343867 CMS
Novartis Pharmaceuticals Corporation $30.9210/14/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1200685656 CMS
Genentech USA, Inc. $24.9610/03/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1211580642 CMS
Eisai Inc. $24.8210/01/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1244509995 CMS
Takeda Pharmaceuticals U.S.A., Inc. $27.3909/25/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1223909899 CMS
AstraZeneca Pharmaceuticals LP $24.0109/23/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1206905827 CMS
Janssen Biotech, Inc. $23.0309/23/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1175419936 CMS
Merck Sharp & Dohme LLC $24.9609/18/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1238245795 CMS
Novartis Pharmaceuticals Corporation $23.2509/17/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1200685660 CMS
GlaxoSmithKline, LLC. $14.1009/12/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1190614268 CMS
Astellas Pharma US Inc $24.0709/11/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1238669011 CMS
Eisai Inc. $17.1809/10/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1244509997 CMS
AstraZeneca Pharmaceuticals LP $30.5908/28/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1206497824 CMS
Incyte Corporation $22.8708/28/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1226143247 CMS
Novartis Pharmaceuticals Corporation $30.5408/22/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1200685654 CMS
AstraZeneca Pharmaceuticals LP $23.2108/21/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1206387401 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $20.7508/18/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1223048384 CMS
Novartis Pharmaceuticals Corporation $16.8908/13/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1200685648 CMS
Exelixis Inc. $17.4308/07/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1218802591 CMS
Eisai Inc. $1.8208/05/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1244509993 CMS
Eisai Inc. $21.1108/04/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1244509991 CMS
AstraZeneca Pharmaceuticals LP $21.2308/01/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1206472692 CMS
Incyte Corporation $24.1307/30/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1226040667 CMS
AstraZeneca Pharmaceuticals LP $23.0007/25/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1207136751 CMS
Janssen Biotech, Inc. $22.8907/24/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1175418908 CMS
Alexion Pharmaceuticals, Inc. $13.9907/23/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1202959718 CMS
Novartis Pharmaceuticals Corporation $31.8107/23/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1200685652 CMS
Novartis Pharmaceuticals Corporation $15.0907/21/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1200685644 CMS
Novartis Pharmaceuticals Corporation $14.6507/15/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1200685646 CMS
Stemline Therapeutics Inc. $20.7007/15/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1244105233 CMS
Novartis Pharmaceuticals Corporation $9.7807/11/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1200685642 CMS
PFIZER INC. $23.8307/11/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1231659533 CMS
AstraZeneca Pharmaceuticals LP $18.7107/08/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1207307612 CMS
Ipsen Biopharmaceuticals, Inc $33.0107/01/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1208837495 CMS
EMD Serono, Inc. $25.5106/28/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1236906959 CMS
Incyte Corporation $4.2206/26/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1226166029 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $3,311.28 125
PY2020 $950.19 69
PY2021 $2,457.26 132
PY2022 $3,184.78 188
PY2023 $3,907.60 191
PY2024 $3,375.61 144
PY2025 $2,732.72 115

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.