Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · as published 2026-01-23 View official record Methodology

Covered recipient · General Payments record

STEPHEN Y NAKADA

Allopathic & Osteopathic Physicians Urology

NPI
1801851415
CMS profile
728113
Location
MADISON, WI

General Payments · PY2018–2021

$16,507.50

  • Reported across 25 records
  • CMS publication 2026-01-23

Latest program year · PY2021

$3,963.60

8 records · 0 disputed

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

How these totals are calculated
  • The total is the sum of the General Payments records CMS published for the labeled program year(s), exactly as published. 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 (all years).
  • Methodology & Data — sourcing, labeling, and limitations.

By nature of payment

PY2021 · sorted by reported total

Nature of paymentAmountRecords
Consulting Fee $3,850.00 5
Food and Beverage $110.58 1
Education $3.02 2

By paying entity

PY2021 · sorted by reported total

Paying entityAmountRecords
BOSTON SCIENTIFIC CORPORATION $3,610.58 5
Calyxo, Inc. $350.00 1
Retrophin, Inc. $3.02 2

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $5,683.68 7
PY2019 $50.00 1
PY2020 $6,810.22 9
PY2021 $3,963.60 8

Payment records · PY2021 (8)

Sorted by paying entity, then date · as published by CMS

Program year 2021 201820192020 Record-level detail is published for PY2021; earlier years are summarised in “By program year”.
Paying entity Amount Date Nature of payment Dispute status Published Record ID Source
BOSTON SCIENTIFIC CORPORATION $1,000.00 01/26/2021 Consulting Fee Undisputed 01/23/2026 777537539 CMS
BOSTON SCIENTIFIC CORPORATION $1,000.00 01/26/2021 Consulting Fee Undisputed 01/23/2026 777537541 CMS
BOSTON SCIENTIFIC CORPORATION $1,000.00 05/18/2021 Consulting Fee Undisputed 01/23/2026 777537543 CMS
BOSTON SCIENTIFIC CORPORATION $110.58 10/26/2021 Food and Beverage Undisputed 01/23/2026 777780549 CMS
BOSTON SCIENTIFIC CORPORATION $500.00 11/30/2021 Consulting Fee Undisputed 01/23/2026 793750631 CMS
Calyxo, Inc. $350.00 04/16/2021 Consulting Fee Undisputed 01/23/2026 809948857 CMS
Travere Therapeutics, Inc. $1.92 08/30/2021 Education Undisputed 01/23/2026 849791079 CMS
Travere Therapeutics, Inc. $1.10 08/30/2021 Education Undisputed 01/23/2026 849791083 CMS

Source & provenance

Dataset
CMS Open Payments — General Payments
Publisher of source data
Centers for Medicare & Medicaid Services
CMS publication date
2026-01-23
Program years on this page
2018, 2019, 2020, 2021
Source files
Dataset page · Bulk file · PY2018 , PY2019 , PY2020 , PY2021
Generated from
OP_DTL_GNRL_PGYR2021_P01232026_01102026.csv

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