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

ROBERT T CHAMBERS

Allopathic & Osteopathic Physicians Family Medicine

NPI
1619911039
CMS profile
345555
Location
KNOXVILLE, TN

General Payments · PY2019–2025

$7,571.33

  • Reported across 499 records
  • CMS publication 2026-06-30

Latest program year · PY2025

$1,168.07

74 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

PY2025 · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $1,168.07 74

By paying entity

PY2025 · sorted by reported total

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $1,227.96 93
PY2020 $1,038.72 76
PY2021 $716.59 53
PY2022 $707.16 44
PY2023 $1,413.98 85
PY2024 $1,298.85 74
PY2025 $1,168.07 74

Payment records · PY2025 (74)

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
Abbott Laboratories $21.71 05/19/2025 Food and Beverage Undisputed 06/30/2026 1240935968 CMS
Abbott Laboratories $22.33 09/15/2025 Food and Beverage Undisputed 06/30/2026 1240974586 CMS
ABBVIE INC. $18.76 02/18/2025 Food and Beverage Undisputed 06/30/2026 1201626980 CMS
ABBVIE INC. $17.70 03/05/2025 Food and Beverage Undisputed 06/30/2026 1201626982 CMS
ABBVIE INC. $18.33 04/09/2025 Food and Beverage Undisputed 06/30/2026 1201626984 CMS
ABBVIE INC. $33.40 06/12/2025 Food and Beverage Undisputed 06/30/2026 1201626986 CMS
ABBVIE INC. $14.91 10/22/2025 Food and Beverage Undisputed 06/30/2026 1201626988 CMS
Amgen Inc. $12.62 01/17/2025 Food and Beverage Undisputed 06/30/2026 1227176110 CMS
Amgen Inc. $4.18 01/24/2025 Food and Beverage Undisputed 06/30/2026 1227176120 CMS
Amgen Inc. $12.13 02/10/2025 Food and Beverage Undisputed 06/30/2026 1227176126 CMS
Amgen Inc. $0.50 02/21/2025 Food and Beverage Undisputed 06/30/2026 1227176098 CMS
Amgen Inc. $12.62 03/03/2025 Food and Beverage Undisputed 06/30/2026 1227176096 CMS
Amgen Inc. $4.02 03/28/2025 Food and Beverage Undisputed 06/30/2026 1227176132 CMS
Amgen Inc. $4.17 04/07/2025 Food and Beverage Undisputed 06/30/2026 1227176134 CMS
Amgen Inc. $3.62 04/24/2025 Food and Beverage Undisputed 06/30/2026 1227176108 CMS
Amgen Inc. $12.42 05/02/2025 Food and Beverage Undisputed 06/30/2026 1227176124 CMS
Amgen Inc. $14.37 05/16/2025 Food and Beverage Undisputed 06/30/2026 1227176100 CMS
Amgen Inc. $3.79 05/28/2025 Food and Beverage Undisputed 06/30/2026 1227176122 CMS
Amgen Inc. $13.88 06/20/2025 Food and Beverage Undisputed 06/30/2026 1227176094 CMS
Amgen Inc. $3.88 07/07/2025 Food and Beverage Undisputed 06/30/2026 1227176130 CMS
Amgen Inc. $12.13 07/17/2025 Food and Beverage Undisputed 06/30/2026 1227176114 CMS
Amgen Inc. $3.81 07/31/2025 Food and Beverage Undisputed 06/30/2026 1227176090 CMS
Amgen Inc. $12.52 08/07/2025 Food and Beverage Undisputed 06/30/2026 1227176106 CMS
Amgen Inc. $4.03 08/21/2025 Food and Beverage Undisputed 06/30/2026 1227176112 CMS
Amgen Inc. $4.54 09/15/2025 Food and Beverage Undisputed 06/30/2026 1227176104 CMS
Amgen Inc. $10.96 09/22/2025 Food and Beverage Undisputed 06/30/2026 1227176116 CMS
Amgen Inc. $15.46 10/17/2025 Food and Beverage Undisputed 06/30/2026 1228631242 CMS
Amgen Inc. $3.97 10/27/2025 Food and Beverage Undisputed 06/30/2026 1227176128 CMS
Amgen Inc. $4.36 11/10/2025 Food and Beverage Undisputed 06/30/2026 1227176118 CMS
Amgen Inc. $12.10 11/21/2025 Food and Beverage Undisputed 06/30/2026 1227176092 CMS
Amgen Inc. $5.30 12/10/2025 Food and Beverage Undisputed 06/30/2026 1227176102 CMS
Astellas Pharma US Inc $14.85 04/17/2025 Food and Beverage Undisputed 06/30/2026 1238776840 CMS
Astellas Pharma US Inc $25.54 10/08/2025 Food and Beverage Undisputed 06/30/2026 1238673375 CMS
AstraZeneca Pharmaceuticals LP $17.25 01/30/2025 Food and Beverage Undisputed 06/30/2026 1206548863 CMS
Bayer Healthcare Pharmaceuticals Inc. $18.46 01/27/2025 Food and Beverage Undisputed 06/30/2026 1225490527 CMS
Boston Scientific Corporation $14.45 03/27/2025 Food and Beverage Undisputed 06/30/2026 1181108316 CMS
Corcept Therapeutics $18.27 09/10/2025 Food and Beverage Undisputed 06/30/2026 1214211717 CMS
Dexcom, Inc. $22.58 01/16/2025 Food and Beverage Undisputed 06/30/2026 1250517969 CMS
Dexcom, Inc. $21.88 05/07/2025 Food and Beverage Undisputed 06/30/2026 1250517971 CMS
Dexcom, Inc. $22.21 07/24/2025 Food and Beverage Undisputed 06/30/2026 1250517973 CMS
Dexcom, Inc. $22.07 11/19/2025 Food and Beverage Undisputed 06/30/2026 1250517975 CMS
Exact Sciences Corporation $14.73 06/18/2025 Food and Beverage Undisputed 06/30/2026 1235316799 CMS
GlaxoSmithKline, LLC. $21.47 03/25/2025 Food and Beverage Undisputed 06/30/2026 1190804474 CMS
GlaxoSmithKline, LLC. $18.08 05/19/2025 Food and Beverage Undisputed 06/30/2026 1190600126 CMS
GlaxoSmithKline, LLC. $18.56 07/29/2025 Food and Beverage Undisputed 06/30/2026 1191611642 CMS
GlaxoSmithKline, LLC. $17.25 09/30/2025 Food and Beverage Undisputed 06/30/2026 1191815291 CMS
GlaxoSmithKline, LLC. $17.02 10/27/2025 Food and Beverage Undisputed 06/30/2026 1191423352 CMS
GlaxoSmithKline, LLC. $17.07 12/01/2025 Food and Beverage Undisputed 06/30/2026 1190415539 CMS
Novartis Pharmaceuticals Corporation $20.99 03/07/2025 Food and Beverage Undisputed 06/30/2026 1200087270 CMS
Novartis Pharmaceuticals Corporation $20.99 05/08/2025 Food and Beverage Undisputed 06/30/2026 1200087272 CMS
Novo Nordisk Inc $28.90 01/15/2025 Food and Beverage Undisputed 06/30/2026 1188788493 CMS
Novo Nordisk Inc $12.85 02/24/2025 Food and Beverage Undisputed 06/30/2026 1188208874 CMS
Novo Nordisk Inc $27.24 03/26/2025 Food and Beverage Undisputed 06/30/2026 1188839100 CMS
Novo Nordisk Inc $6.29 03/28/2025 Food and Beverage Undisputed 06/30/2026 1188865083 CMS
Novo Nordisk Inc $12.98 04/29/2025 Food and Beverage Undisputed 06/30/2026 1188682754 CMS
Novo Nordisk Inc $18.12 05/15/2025 Food and Beverage Undisputed 06/30/2026 1188171053 CMS
Novo Nordisk Inc $26.74 05/21/2025 Food and Beverage Undisputed 06/30/2026 1188733680 CMS
Novo Nordisk Inc $21.61 06/05/2025 Food and Beverage Undisputed 06/30/2026 1188583429 CMS
Novo Nordisk Inc $27.81 06/17/2025 Food and Beverage Undisputed 06/30/2026 1188440211 CMS
Novo Nordisk Inc $14.17 06/24/2025 Food and Beverage Undisputed 06/30/2026 1188176059 CMS
Novo Nordisk Inc $7.37 08/06/2025 Food and Beverage Undisputed 06/30/2026 1188147411 CMS
Novo Nordisk Inc $24.70 09/23/2025 Food and Beverage Undisputed 06/30/2026 1188132519 CMS
Novo Nordisk Inc $23.91 10/21/2025 Food and Beverage Undisputed 06/30/2026 1188192806 CMS
Novo Nordisk Inc $17.48 11/13/2025 Food and Beverage Undisputed 06/30/2026 1188424261 CMS
PFIZER INC. $22.00 04/07/2025 Food and Beverage Undisputed 06/30/2026 1231526497 CMS
PFIZER INC. $17.12 04/21/2025 Food and Beverage Undisputed 06/30/2026 1228832025 CMS
PFIZER INC. $5.56 06/03/2025 Food and Beverage Undisputed 06/30/2026 1231314737 CMS
PFIZER INC. $19.22 07/03/2025 Food and Beverage Undisputed 06/30/2026 1231617843 CMS
PFIZER INC. $22.20 07/07/2025 Food and Beverage Undisputed 06/30/2026 1228969694 CMS
PFIZER INC. $23.37 08/20/2025 Food and Beverage Undisputed 06/30/2026 1231660684 CMS
PFIZER INC. $22.20 08/23/2025 Food and Beverage Undisputed 06/30/2026 1229195774 CMS
PFIZER INC. $19.15 09/24/2025 Food and Beverage Undisputed 06/30/2026 1229948438 CMS
PFIZER INC. $22.55 12/09/2025 Food and Beverage Undisputed 06/30/2026 1229574824 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $22.29 02/28/2025 Food and Beverage Undisputed 06/30/2026 1231992538 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

One page per canonical provider; split Profile_IDs are merged via Associated_Covered_Recipient_Profile_ID_1/_2 from the Covered Recipient Profile Supplement.

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