IndustryPayments
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

MICHAEL R WIEDERKEHR

Allopathic & Osteopathic Physicians Internal Medicine Nephrology

NPI
1932153681
CMS profile
359646
Location
DALLAS, TX

General Payments · PY2018–2024

$68,416.87

  • Reported across 357 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$13,133.08

58 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: Nephrology TX All categories

By nature of payment

PY2024 · sorted by reported total

Nature of paymentAmountRecords
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program $7,908.00 4
Consulting Fee $2,400.00 1
Food and Beverage $1,834.25 49
Travel and Lodging $981.83 3
Education $9.00 1

By paying entity

PY2024 · sorted by reported total

Paying entityAmountRecords
Otsuka America Pharmaceutical, Inc. $8,132.87 6
Fresenius USA Marketing, Inc. $3,783.00 8
Acerta Pharma LLC $309.97 15
NXSTAGE MEDICAL, INC. $273.17 3
CorMedix Inc. $183.93 7
CALLIDITAS THERAPEUTICS US INC. $101.20 1
Retrophin, Inc. $89.83 5
Veloxis Pharmaceuticals, Inc. $67.28 3
NOVARTIS PHARMACEUTICALS CORPORATION $52.27 2
Alexion Pharmaceuticals, Inc. $30.92 2
Amgen Inc. $29.15 2
Ardelyx, Inc. $22.87 1
OPKO Pharmaceuticals, LLC $21.24 1
Aurinia Pharma U.S., Inc. $18.39 1
ANI Pharmaceuticals, Inc. $16.99 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $3,859.06 49
PY2019 $3,840.18 52
PY2020 $9,137.12 41
PY2021 $16,517.92 39
PY2022 $10,283.70 51
PY2023 $11,645.81 67
PY2024 $13,133.08 58

Payment records · PY2024 (58)

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

Program year 2024 201820192020202120222023 Record-level detail is published for PY2024; earlier years are summarised in “By program year”.
Paying entity Amount Date Nature of payment Dispute status Published Record ID Source
Alexion Pharmaceuticals, Inc. $15.93 03/29/2024 Food and Beverage Undisputed 01/23/2026 1093893082 CMS
Alexion Pharmaceuticals, Inc. $14.99 09/27/2024 Food and Beverage Undisputed 01/23/2026 1094018978 CMS
Amgen Inc. $14.99 08/02/2024 Food and Beverage Undisputed 01/23/2026 1116208111 CMS
Amgen Inc. $14.16 09/19/2024 Food and Beverage Undisputed 01/23/2026 1116208115 CMS
ANI Pharmaceuticals, Inc. $16.99 08/16/2024 Food and Beverage Undisputed 01/23/2026 1091138428 CMS
Ardelyx, Inc. $22.87 07/30/2024 Food and Beverage Undisputed 01/23/2026 1146714091 CMS
AstraZeneca Pharmaceuticals LP $16.23 01/19/2024 Food and Beverage Undisputed 01/23/2026 1105467007 CMS
AstraZeneca Pharmaceuticals LP $77.30 01/25/2024 Food and Beverage Undisputed 01/23/2026 1105615267 CMS
AstraZeneca Pharmaceuticals LP $16.23 02/02/2024 Food and Beverage Undisputed 01/23/2026 1105803735 CMS
AstraZeneca Pharmaceuticals LP $16.23 03/01/2024 Food and Beverage Undisputed 01/23/2026 1104299764 CMS
AstraZeneca Pharmaceuticals LP $16.23 03/07/2024 Food and Beverage Undisputed 01/23/2026 1104473990 CMS
AstraZeneca Pharmaceuticals LP $14.99 03/14/2024 Food and Beverage Undisputed 01/23/2026 1104776000 CMS
AstraZeneca Pharmaceuticals LP $14.99 03/29/2024 Food and Beverage Undisputed 01/23/2026 1104357943 CMS
AstraZeneca Pharmaceuticals LP $14.99 04/22/2024 Food and Beverage Undisputed 01/23/2026 1105477307 CMS
AstraZeneca Pharmaceuticals LP $14.99 05/20/2024 Food and Beverage Undisputed 01/23/2026 1105685629 CMS
AstraZeneca Pharmaceuticals LP $14.99 05/30/2024 Food and Beverage Undisputed 01/23/2026 1104283447 CMS
AstraZeneca Pharmaceuticals LP $30.18 06/06/2024 Food and Beverage Undisputed 01/23/2026 1104462756 CMS
AstraZeneca Pharmaceuticals LP $22.14 06/12/2024 Food and Beverage Undisputed 01/23/2026 1105703850 CMS
AstraZeneca Pharmaceuticals LP $16.49 07/25/2024 Food and Beverage Undisputed 01/23/2026 1105511037 CMS
AstraZeneca Pharmaceuticals LP $9.00 08/07/2024 Education Undisputed 01/23/2026 1104780186 CMS
AstraZeneca Pharmaceuticals LP $14.99 12/02/2024 Food and Beverage Undisputed 01/23/2026 1104355270 CMS
Aurinia Pharma U.S., Inc. $18.39 01/25/2024 Food and Beverage Undisputed 01/23/2026 1150694441 CMS
CALLIDITAS THERAPEUTICS US INC. $101.20 07/17/2024 Food and Beverage Undisputed 01/23/2026 1141518737 CMS
CorMedix Inc. $23.17 05/08/2024 Food and Beverage Undisputed 01/23/2026 1082023893 CMS
CorMedix Inc. $28.31 06/19/2024 Food and Beverage Undisputed 01/23/2026 1082023904 CMS
CorMedix Inc. $25.48 07/03/2024 Food and Beverage Undisputed 01/23/2026 1082023901 CMS
CorMedix Inc. $34.22 07/03/2024 Food and Beverage Undisputed 01/23/2026 1082023911 CMS
CorMedix Inc. $28.31 09/11/2024 Food and Beverage Undisputed 01/23/2026 1082023907 CMS
CorMedix Inc. $23.17 10/02/2024 Food and Beverage Undisputed 01/23/2026 1082023897 CMS
CorMedix Inc. $21.27 11/06/2024 Food and Beverage Undisputed 01/23/2026 1082023889 CMS
Fresenius USA Marketing, Inc. $54.00 03/19/2024 Travel and Lodging Undisputed 01/23/2026 1154204138 CMS
Fresenius USA Marketing, Inc. $185.00 03/19/2024 Food and Beverage Undisputed 01/23/2026 1154204144 CMS
Fresenius USA Marketing, Inc. $641.23 03/19/2024 Travel and Lodging Undisputed 01/23/2026 1154204148 CMS
Fresenius USA Marketing, Inc. $286.60 03/20/2024 Travel and Lodging Undisputed 01/23/2026 1154204146 CMS
Fresenius USA Marketing, Inc. $2,400.00 03/20/2024 Consulting Fee Undisputed 01/23/2026 1154204150 CMS
Fresenius USA Marketing, Inc. $75.49 07/16/2024 Food and Beverage Undisputed 01/23/2026 1154204140 CMS
Fresenius USA Marketing, Inc. $4.00 11/05/2024 Food and Beverage Undisputed 01/23/2026 1154204136 CMS
Fresenius USA Marketing, Inc. $136.68 12/12/2024 Food and Beverage Undisputed 01/23/2026 1154204142 CMS
Novartis Pharmaceuticals Corporation $14.48 01/23/2024 Food and Beverage Undisputed 01/23/2026 1087400640 CMS
Novartis Pharmaceuticals Corporation $37.79 05/17/2024 Food and Beverage Undisputed 01/23/2026 1087400650 CMS
NXSTAGE MEDICAL, INC. $147.85 03/26/2024 Food and Beverage Undisputed 01/23/2026 1154283237 CMS
NXSTAGE MEDICAL, INC. $49.46 10/01/2024 Food and Beverage Undisputed 01/23/2026 1154283233 CMS
NXSTAGE MEDICAL, INC. $75.86 11/21/2024 Food and Beverage Undisputed 01/23/2026 1154283235 CMS
OPKO Pharmaceuticals, LLC $21.24 08/19/2024 Food and Beverage Undisputed 01/23/2026 1112850942 CMS
Otsuka America Pharmaceutical, Inc. $822.00 04/26/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1119004351 CMS
Otsuka America Pharmaceutical, Inc. $121.84 05/02/2024 Food and Beverage Undisputed 01/23/2026 1119004353 CMS
Otsuka America Pharmaceutical, Inc. $3,406.00 05/08/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1119004355 CMS
Otsuka America Pharmaceutical, Inc. $274.00 07/03/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1119004357 CMS
Otsuka America Pharmaceutical, Inc. $103.03 11/19/2024 Food and Beverage Undisputed 01/23/2026 1119004359 CMS
Otsuka America Pharmaceutical, Inc. $3,406.00 11/22/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1119004361 CMS
Travere Therapeutics, Inc. $10.84 06/28/2024 Food and Beverage Undisputed 01/23/2026 1149896716 CMS
Travere Therapeutics, Inc. $31.93 06/28/2024 Food and Beverage Undisputed 01/23/2026 1149896728 CMS
Travere Therapeutics, Inc. $16.49 08/01/2024 Food and Beverage Undisputed 01/23/2026 1149896720 CMS
Travere Therapeutics, Inc. $5.08 10/03/2024 Food and Beverage Undisputed 01/23/2026 1149896712 CMS
Travere Therapeutics, Inc. $25.49 10/03/2024 Food and Beverage Undisputed 01/23/2026 1149896724 CMS
Veloxis Pharmaceuticals, Inc. $21.22 02/09/2024 Food and Beverage Undisputed 01/23/2026 1147093922 CMS
Veloxis Pharmaceuticals, Inc. $23.17 09/23/2024 Food and Beverage Undisputed 01/23/2026 1147093924 CMS
Veloxis Pharmaceuticals, Inc. $22.89 11/21/2024 Food and Beverage Undisputed 01/23/2026 1147093926 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, 2022, 2023, 2024
Source files
Dataset page · Bulk file · PY2018 , PY2019 , PY2020 , PY2021 , PY2022 , PY2023 , PY2024
Generated from
OP_DTL_GNRL_PGYR2024_P01232026_01102026.csv

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