Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · CMS publication 2026-06-30 View official record Methodology

Covered recipient · General Payments record

CHAYANIN HAMADA

Allopathic & Osteopathic Physicians Psychiatry & Neurology Child & Adolescent Psychiatry

NPI
1639603566
CMS profile
8732327
Location
HONOLULU, HI

General Payments · PY2024–2025

$380.15

  • Reported across 13 records
  • CMS publication 2026-06-30

Latest program year · PY2025

$325.85

11 records · 0 disputed

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

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 (all years).
  • Methodology & Data — sourcing, labeling, and limitations.

By nature of payment

PY2025 · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $325.85 11

By paying entity

PY2025 · sorted by reported total

Paying entityAmountRecords
ITI, Inc. $106.19 3
Teva Pharmaceuticals USA, Inc. $98.06 4
ABBVIE INC. $86.74 3
Janssen Pharmaceuticals, Inc $34.86 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2024 $54.30 2
PY2025 $325.85 11

Payment records · PY2025 (11)

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

Program year 2025 2024 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
ABBVIE INC. $28.64 08/26/2025 Food and Beverage Undisputed 06/30/2026 1201995293 CMS
ABBVIE INC. $32.75 10/09/2025 Food and Beverage Undisputed 06/30/2026 1201995295 CMS
ABBVIE INC. $25.35 12/04/2025 Food and Beverage Undisputed 06/30/2026 1201995297 CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $33.20 02/24/2025 Food and Beverage Undisputed 06/30/2026 1241329278 CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $34.99 07/22/2025 Food and Beverage Undisputed 06/30/2026 1241329281 CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $38.00 12/09/2025 Food and Beverage Undisputed 06/30/2026 1241329286 CMS
Janssen Pharmaceuticals, Inc $34.86 09/23/2025 Food and Beverage Undisputed 06/30/2026 1174400614 CMS
Teva Pharmaceuticals USA, Inc. $25.48 09/02/2025 Food and Beverage Undisputed 06/30/2026 1247350787 CMS
Teva Pharmaceuticals USA, Inc. $23.86 10/28/2025 Food and Beverage Undisputed 06/30/2026 1247350785 CMS
Teva Pharmaceuticals USA, Inc. $22.55 11/04/2025 Food and Beverage Undisputed 06/30/2026 1247350783 CMS
Teva Pharmaceuticals USA, Inc. $26.17 12/15/2025 Food and Beverage Undisputed 06/30/2026 1247350781 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
2024, 2025
Source files
Dataset page · Bulk file · 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.