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

Covered recipient · General Payments record

CHANGWEN CHEN

Allopathic & Osteopathic Physicians Family Medicine

NPI
1033220314
CMS profile
183378
Location
KNOXVILLE, TN

General Payments · PY2019–2025

$7,084.73

  • Reported across 439 records
  • CMS publication 2026-06-30

Latest program year · PY2025

$834.94

46 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.

Related groups: Family Medicine TN All categories

By nature of payment

PY2025 · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $834.94 46

By paying entity

PY2025 · sorted by reported total

Paying entityAmountRecords
ITI, Inc. $289.72 18
Novo Nordisk AS $127.91 6
Amgen Inc. $93.21 5
Acerta Pharma LLC $75.67 4
ABBVIE INC. $67.76 4
EVOKE PHARMA, INC. $64.33 4
Inspire Medical Systems, Inc. $48.38 2
Otsuka America Pharmaceutical, Inc. $47.49 2
Bayer HealthCare Pharmaceuticals Inc. $20.47 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $1,336.94 90
PY2020 $1,393.06 89
PY2021 $1,123.59 70
PY2022 $1,036.19 62
PY2023 $877.32 53
PY2024 $482.69 29
PY2025 $834.94 46

Payment records · PY2025 (46)

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

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
ABBVIE INC. $20.15 02/18/2025 Food and Beverage Undisputed 06/30/2026 1201642525 CMS
ABBVIE INC. $14.10 02/26/2025 Food and Beverage Undisputed 06/30/2026 1201642527 CMS
ABBVIE INC. $17.55 08/11/2025 Food and Beverage Undisputed 06/30/2026 1201642529 CMS
ABBVIE INC. $15.96 08/27/2025 Food and Beverage Undisputed 06/30/2026 1201642531 CMS
Amgen Inc. $19.85 01/09/2025 Food and Beverage Undisputed 06/30/2026 1228631546 CMS
Amgen Inc. $19.48 07/17/2025 Food and Beverage Undisputed 06/30/2026 1228631550 CMS
Amgen Inc. $18.16 09/25/2025 Food and Beverage Undisputed 06/30/2026 1228631542 CMS
Amgen Inc. $17.70 10/15/2025 Food and Beverage Undisputed 06/30/2026 1228631548 CMS
Amgen Inc. $18.02 10/22/2025 Food and Beverage Undisputed 06/30/2026 1228631544 CMS
AstraZeneca Pharmaceuticals LP $16.40 03/26/2025 Food and Beverage Undisputed 06/30/2026 1206878595 CMS
AstraZeneca Pharmaceuticals LP $19.72 07/09/2025 Food and Beverage Undisputed 06/30/2026 1206671124 CMS
AstraZeneca Pharmaceuticals LP $18.98 08/13/2025 Food and Beverage Undisputed 06/30/2026 1207180904 CMS
AstraZeneca Pharmaceuticals LP $20.57 11/11/2025 Food and Beverage Undisputed 06/30/2026 1207063978 CMS
Bayer Healthcare Pharmaceuticals Inc. $20.47 10/16/2025 Food and Beverage Undisputed 06/30/2026 1225493170 CMS
EVOKE PHARMA, INC. $17.72 05/05/2025 Food and Beverage Undisputed 06/30/2026 1243914450 CMS
EVOKE PHARMA, INC. $16.78 07/07/2025 Food and Beverage Undisputed 06/30/2026 1243915343 CMS
EVOKE PHARMA, INC. $15.02 08/05/2025 Food and Beverage Undisputed 06/30/2026 1243915632 CMS
EVOKE PHARMA, INC. $14.81 12/04/2025 Food and Beverage Undisputed 06/30/2026 1243916961 CMS
Inspire Medical Systems, Inc. $21.85 05/20/2025 Food and Beverage Undisputed 06/30/2026 1251456174 CMS
Inspire Medical Systems, Inc. $26.53 06/23/2025 Food and Beverage Undisputed 06/30/2026 1251456176 CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $25.83 03/05/2025 Food and Beverage Undisputed 06/30/2026 1241272246 CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $6.54 04/03/2025 Food and Beverage Undisputed 06/30/2026 1241272250 CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $21.82 04/18/2025 Food and Beverage Undisputed 06/30/2026 1241272254 CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $23.25 05/13/2025 Food and Beverage Undisputed 06/30/2026 1241272258 CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $1.09 05/13/2025 Food and Beverage Undisputed 06/30/2026 1241272261 CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $6.24 06/19/2025 Food and Beverage Undisputed 06/30/2026 1241272265 CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $17.24 06/30/2025 Food and Beverage Undisputed 06/30/2026 1241272267 CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $20.50 07/21/2025 Food and Beverage Undisputed 06/30/2026 1241272271 CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $5.71 07/30/2025 Food and Beverage Undisputed 06/30/2026 1241272275 CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $6.04 08/14/2025 Food and Beverage Undisputed 06/30/2026 1241272279 CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $6.53 09/02/2025 Food and Beverage Undisputed 06/30/2026 1241272283 CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $26.79 09/30/2025 Food and Beverage Undisputed 06/30/2026 1241272287 CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $6.08 10/10/2025 Food and Beverage Undisputed 06/30/2026 1241272290 CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $25.34 10/21/2025 Food and Beverage Undisputed 06/30/2026 1241272293 CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $23.05 11/14/2025 Food and Beverage Undisputed 06/30/2026 1241272296 CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $19.38 11/20/2025 Food and Beverage Undisputed 06/30/2026 1241272301 CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $22.69 12/02/2025 Food and Beverage Undisputed 06/30/2026 1241272304 CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $25.60 12/11/2025 Food and Beverage Undisputed 06/30/2026 1241272308 CMS
Novo Nordisk Inc $28.99 04/02/2025 Food and Beverage Undisputed 06/30/2026 1188188847 CMS
Novo Nordisk Inc $20.61 05/07/2025 Food and Beverage Undisputed 06/30/2026 1188148602 CMS
Novo Nordisk Inc $25.60 06/25/2025 Food and Beverage Undisputed 06/30/2026 1188151330 CMS
Novo Nordisk Inc $18.48 08/06/2025 Food and Beverage Undisputed 06/30/2026 1188770498 CMS
Novo Nordisk Inc $18.12 09/29/2025 Food and Beverage Undisputed 06/30/2026 1188665613 CMS
Novo Nordisk Inc $16.11 09/30/2025 Food and Beverage Undisputed 06/30/2026 1188199974 CMS
Otsuka America Pharmaceutical, Inc. $31.65 10/06/2025 Food and Beverage Undisputed 06/30/2026 1227307271 CMS
Otsuka America Pharmaceutical, Inc. $15.84 12/03/2025 Food and Beverage Undisputed 06/30/2026 1227307273 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

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