Reflects CMS Open Payments as of 2026-07-26T04:22:22Z. CMS updates this data on an annual cycle, and corrections or successful disputes made at CMS may not yet appear here. The official CMS record is authoritative for the current state. View the official CMS record ↗

Covered recipient · General Payments record

WILLIAM J DAHMS

Allopathic & Osteopathic Physicians Internal Medicine Nephrology

NPI: 1952419376
CMS profile: 1102302
Location: NEWARK, DE

A name match is not confirmation of identity. CMS publishes records for different people under similar names; the NPI, specialty, and location shown on this page are the CMS-published fields that distinguish them.

General Payments · PY2019–2025

CMS publication 2026-06-30

Latest program year · PY2025

$2,656.14

109 records · 0 disputed

“Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.”
— Centers for Medicare & Medicaid Services, Open Payments

A reported payment reflects a financial relationship a company disclosed. It does not indicate wrongdoing or a conflict of interest, and it says nothing about the quality of a provider's care.

These records are submitted to CMS and attested to by the reporting companies. CMS publishes them as reported; this site mirrors them without independent verification.

A payment attributed to a provider may have been made to a third party — a hospital, practice, or research institution — rather than paid to the provider personally.

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) AND records>=2 AND NPI identity (all years).
Methodology & Data — sourcing, labeling, and limitations.

By nature of payment

PY2025 · sorted by reported total

Nature of payment	Amount	Records
Food and Beverage	$2,618.60	107
Education	$37.54	2

By paying entity

PY2025 · sorted by reported total

Paying entity	Amount	Records
Ardelyx, Inc.	$277.92	11
Amgen Inc.	$269.13	14
CALLIDITAS THERAPEUTICS US INC.	$262.29	9
Fresenius USA Marketing, Inc.	$229.11	10
Otsuka America Pharmaceutical, Inc.	$213.14	9
Mallinckrodt Hospital Products Inc.	$195.13	7
Bayer HealthCare Pharmaceuticals Inc.	$173.26	11
Lilly USA, LLC	$164.18	3
ANI Pharmaceuticals, Inc.	$109.04	4
Relypsa, Inc.	$101.52	1
AKEBIA THERAPEUTICS INC	$97.83	4
Acerta Pharma LLC	$96.90	4
NOVARTIS PHARMACEUTICALS CORPORATION	$78.31	3
Aurinia Pharma U.S., Inc.	$55.64	2
Retrophin, Inc.	$55.44	3
OPKO Pharmaceuticals, LLC	$37.54	2
GENZYME CORPORATION	$37.02	2
Daiichi Sankyo Inc.	$36.28	2
KYOWA KIRIN, INC.	$34.41	2
Otsuka Pharmaceutical Development & Commercialization, Inc.	$33.23	1
Boehringer Ingelheim Pharmaceuticals, Inc.	$30.81	2
BOSTON SCIENTIFIC CORPORATION	$26.13	1
Takeda Pharmaceuticals U.S.A., Inc.	$23.17	1
Novo Nordisk AS	$18.71	1

By program year

All program years on this page · sorted by year

Program year	Amount	Records
PY2019	$19,186.36	78
PY2020	$9,797.64	29
PY2021	$8,199.66	39
PY2022	$32,952.52	85
PY2023	$19,342.76	95
PY2024	$1,954.48	84
PY2025	$2,656.14	109

Payment records · PY2025 (109)

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

Program year 2025 2019 2020 2021 2022 2023 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
KYOWA KIRIN, INC.	$19.51	12/18/2025	Food and Beverage	No dispute reported	06/30/2026	1222079001	CMS
Fresenius USA Marketing, Inc.	$22.77	12/11/2025	Food and Beverage	No dispute reported	06/30/2026	1244806765	CMS
Ardelyx, Inc.	$18.64	12/10/2025	Food and Beverage	No dispute reported	06/30/2026	1247843144	CMS
Otsuka America Pharmaceutical, Inc.	$32.76	12/09/2025	Food and Beverage	No dispute reported	06/30/2026	1227315253	CMS
Amgen Inc.	$15.09	12/08/2025	Food and Beverage	No dispute reported	06/30/2026	1228476585	CMS
Fresenius USA Marketing, Inc.	$0.18	12/04/2025	Food and Beverage	No dispute reported	06/30/2026	1244806761	CMS
Bayer Healthcare Pharmaceuticals Inc.	$18.97	12/03/2025	Food and Beverage	No dispute reported	06/30/2026	1225508622	CMS
Amgen Inc.	$14.44	11/26/2025	Food and Beverage	No dispute reported	06/30/2026	1227247054	CMS
Amgen Inc.	$13.84	11/21/2025	Food and Beverage	No dispute reported	06/30/2026	1227247052	CMS
Mallinckrodt Hospital Products Inc.	$21.07	11/19/2025	Food and Beverage	No dispute reported	06/30/2026	1211959946	CMS
Lilly USA, LLC	$121.25	11/18/2025	Food and Beverage	No dispute reported	06/30/2026	1186945221	CMS
Bayer Healthcare Pharmaceuticals Inc.	$19.07	11/17/2025	Food and Beverage	No dispute reported	06/30/2026	1225508626	CMS
Novartis Pharmaceuticals Corporation	$33.20	11/14/2025	Food and Beverage	No dispute reported	06/30/2026	1200054893	CMS
Bayer Healthcare Pharmaceuticals Inc.	$18.03	11/12/2025	Food and Beverage	No dispute reported	06/30/2026	1225508624	CMS
AstraZeneca Pharmaceuticals LP	$19.66	11/11/2025	Food and Beverage	No dispute reported	06/30/2026	1206509356	CMS
Fresenius USA Marketing, Inc.	$26.82	11/09/2025	Food and Beverage	No dispute reported	06/30/2026	1244806775	CMS
Ardelyx, Inc.	$16.82	11/06/2025	Food and Beverage	No dispute reported	06/30/2026	1247843142	CMS
Calliditas Therapeutics US Inc.	$34.40	11/03/2025	Food and Beverage	No dispute reported	06/30/2026	1234994387	CMS
Bayer Healthcare Pharmaceuticals Inc.	$3.00	10/29/2025	Food and Beverage	No dispute reported	06/30/2026	1225508618	CMS
Bayer Healthcare Pharmaceuticals Inc.	$1.21	10/29/2025	Food and Beverage	No dispute reported	06/30/2026	1225508620	CMS
Lilly USA, LLC	$20.84	10/28/2025	Food and Beverage	No dispute reported	06/30/2026	1186972682	CMS
Ardelyx, Inc.	$27.88	10/27/2025	Food and Beverage	No dispute reported	06/30/2026	1247843140	CMS
Novartis Pharmaceuticals Corporation	$28.67	10/22/2025	Food and Beverage	No dispute reported	06/30/2026	1200054895	CMS
Otsuka Pharmaceutical Development & Commercialization, Inc.	$33.23	10/16/2025	Food and Beverage	No dispute reported	06/30/2026	1225321527	CMS
OPKO Pharmaceuticals, LLC	$19.25	10/15/2025	Education	No dispute reported	06/30/2026	1222078020	CMS
Ardelyx, Inc.	$15.83	10/08/2025	Food and Beverage	No dispute reported	06/30/2026	1247843138	CMS
Mallinckrodt Hospital Products Inc.	$21.12	10/07/2025	Food and Beverage	No dispute reported	06/30/2026	1211959944	CMS
Bayer Healthcare Pharmaceuticals Inc.	$16.28	10/06/2025	Food and Beverage	No dispute reported	06/30/2026	1225508616	CMS
Fresenius USA Marketing, Inc.	$28.32	09/25/2025	Food and Beverage	No dispute reported	06/30/2026	1244806763	CMS
Calliditas Therapeutics US Inc.	$18.50	09/24/2025	Food and Beverage	No dispute reported	06/30/2026	1234994385	CMS
Calliditas Therapeutics US Inc.	$16.15	09/23/2025	Food and Beverage	No dispute reported	06/30/2026	1234994383	CMS
Amgen Inc.	$18.28	09/22/2025	Food and Beverage	No dispute reported	06/30/2026	1228476583	CMS
Fresenius USA Marketing, Inc.	$21.81	09/18/2025	Food and Beverage	No dispute reported	06/30/2026	1244806769	CMS
Amgen Inc.	$24.25	09/17/2025	Food and Beverage	No dispute reported	06/30/2026	1228476575	CMS
Amgen Inc.	$22.94	09/17/2025	Food and Beverage	No dispute reported	06/30/2026	1228476589	CMS
KYOWA KIRIN, INC.	$14.90	09/16/2025	Food and Beverage	No dispute reported	06/30/2026	1222078995	CMS
Travere Therapeutics, Inc.	$18.83	09/15/2025	Food and Beverage	No dispute reported	06/30/2026	1244397346	CMS
Boston Scientific Corporation	$26.13	09/12/2025	Food and Beverage	No dispute reported	06/30/2026	1181433118	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$23.17	09/12/2025	Food and Beverage	No dispute reported	06/30/2026	1223883091	CMS
GENZYME CORPORATION	$21.73	09/09/2025	Food and Beverage	No dispute reported	06/30/2026	1233371839	CMS
Otsuka America Pharmaceutical, Inc.	$25.09	09/08/2025	Food and Beverage	No dispute reported	06/30/2026	1227315251	CMS
Bayer Healthcare Pharmaceuticals Inc.	$16.29	09/04/2025	Food and Beverage	No dispute reported	06/30/2026	1225508614	CMS
Ardelyx, Inc.	$16.12	09/03/2025	Food and Beverage	No dispute reported	06/30/2026	1247843136	CMS
Novo Nordisk Inc	$18.71	09/02/2025	Food and Beverage	No dispute reported	06/30/2026	1188601486	CMS
Ardelyx, Inc.	$5.92	08/26/2025	Food and Beverage	No dispute reported	06/30/2026	1247843134	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$16.07	08/19/2025	Food and Beverage	No dispute reported	06/30/2026	1222791685	CMS
Mallinckrodt Hospital Products Inc.	$35.85	08/18/2025	Food and Beverage	No dispute reported	06/30/2026	1211959942	CMS
ANI Pharmaceuticals, Inc.	$27.89	08/07/2025	Food and Beverage	No dispute reported	06/30/2026	1248585464	CMS
Amgen Inc.	$19.02	08/04/2025	Food and Beverage	No dispute reported	06/30/2026	1228476569	CMS
Lilly USA, LLC	$22.09	08/04/2025	Food and Beverage	No dispute reported	06/30/2026	1186972680	CMS
Ardelyx, Inc.	$26.93	07/23/2025	Food and Beverage	No dispute reported	06/30/2026	1247843132	CMS
Amgen Inc.	$18.97	07/21/2025	Food and Beverage	No dispute reported	06/30/2026	1228476573	CMS
Vifor Pharma, Inc.	$101.52	07/17/2025	Food and Beverage	No dispute reported	06/30/2026	1172034814	CMS
Ardelyx, Inc.	$86.50	07/10/2025	Food and Beverage	No dispute reported	06/30/2026	1247843130	CMS
Mallinckrodt Hospital Products Inc.	$30.09	07/08/2025	Food and Beverage	No dispute reported	06/30/2026	1211959940	CMS
Otsuka America Pharmaceutical, Inc.	$16.78	07/05/2025	Food and Beverage	No dispute reported	06/30/2026	1227315249	CMS
Novartis Pharmaceuticals Corporation	$16.44	06/30/2025	Food and Beverage	No dispute reported	06/30/2026	1200171261	CMS
ANI Pharmaceuticals, Inc.	$28.29	06/24/2025	Food and Beverage	No dispute reported	06/30/2026	1248664029	CMS
OPKO Pharmaceuticals, LLC	$18.29	06/24/2025	Education	No dispute reported	06/30/2026	1222078013	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$14.74	06/16/2025	Food and Beverage	No dispute reported	06/30/2026	1222791683	CMS
Otsuka America Pharmaceutical, Inc.	$26.71	06/12/2025	Food and Beverage	No dispute reported	06/30/2026	1227315247	CMS
Calliditas Therapeutics US Inc.	$16.06	06/10/2025	Food and Beverage	No dispute reported	06/30/2026	1234994381	CMS
Calliditas Therapeutics US Inc.	$18.77	06/09/2025	Food and Beverage	No dispute reported	06/30/2026	1234994379	CMS
Calliditas Therapeutics US Inc.	$74.41	06/05/2025	Food and Beverage	No dispute reported	06/30/2026	1234994377	CMS
AKEBIA THERAPEUTICS INC	$20.91	06/04/2025	Food and Beverage	No dispute reported	06/30/2026	1241818522	CMS
Fresenius USA Marketing, Inc.	$24.90	05/27/2025	Food and Beverage	No dispute reported	06/30/2026	1244806771	CMS
ANI Pharmaceuticals, Inc.	$23.96	05/22/2025	Food and Beverage	No dispute reported	06/30/2026	1248633309	CMS
Amgen Inc.	$20.19	05/14/2025	Food and Beverage	No dispute reported	06/30/2026	1228476577	CMS
Amgen Inc.	$20.19	05/14/2025	Food and Beverage	No dispute reported	06/30/2026	1228476587	CMS
Ardelyx, Inc.	$21.53	05/12/2025	Food and Beverage	No dispute reported	06/30/2026	1247843128	CMS
Otsuka America Pharmaceutical, Inc.	$22.13	05/08/2025	Food and Beverage	No dispute reported	06/30/2026	1227315245	CMS
Bayer Healthcare Pharmaceuticals Inc.	$20.82	05/06/2025	Food and Beverage	No dispute reported	06/30/2026	1225508610	CMS
Daiichi Sankyo Inc.	$17.34	05/05/2025	Food and Beverage	No dispute reported	06/30/2026	1197063701	CMS
GENZYME CORPORATION	$15.29	05/01/2025	Food and Beverage	No dispute reported	06/30/2026	1233371779	CMS
Mallinckrodt Hospital Products Inc.	$35.44	04/23/2025	Food and Beverage	No dispute reported	06/30/2026	1211959938	CMS
Travere Therapeutics, Inc.	$20.16	04/17/2025	Food and Beverage	No dispute reported	06/30/2026	1244397348	CMS
Aurinia Pharma U.S., Inc.	$27.81	04/11/2025	Food and Beverage	No dispute reported	06/30/2026	1249427880	CMS
Calliditas Therapeutics US Inc.	$24.91	04/10/2025	Food and Beverage	No dispute reported	06/30/2026	1234994375	CMS
Calliditas Therapeutics US Inc.	$32.22	04/09/2025	Food and Beverage	No dispute reported	06/30/2026	1234994373	CMS
Otsuka America Pharmaceutical, Inc.	$24.53	04/08/2025	Food and Beverage	No dispute reported	06/30/2026	1227315243	CMS
AKEBIA THERAPEUTICS INC	$23.32	04/03/2025	Food and Beverage	No dispute reported	06/30/2026	1241817524	CMS
AstraZeneca Pharmaceuticals LP	$19.42	04/02/2025	Food and Beverage	No dispute reported	06/30/2026	1206750087	CMS
Fresenius USA Marketing, Inc.	$29.03	04/01/2025	Food and Beverage	No dispute reported	06/30/2026	1244806773	CMS
ANI Pharmaceuticals, Inc.	$28.90	03/26/2025	Food and Beverage	No dispute reported	06/30/2026	1248633001	CMS
Bayer Healthcare Pharmaceuticals Inc.	$20.79	03/25/2025	Food and Beverage	No dispute reported	06/30/2026	1225508606	CMS
Fresenius USA Marketing, Inc.	$24.92	03/21/2025	Food and Beverage	No dispute reported	06/30/2026	1244806779	CMS
AstraZeneca Pharmaceuticals LP	$25.93	03/18/2025	Food and Beverage	No dispute reported	06/30/2026	1206266684	CMS
Bayer Healthcare Pharmaceuticals Inc.	$16.69	03/18/2025	Food and Beverage	No dispute reported	06/30/2026	1225508612	CMS
Mallinckrodt Hospital Products Inc.	$13.36	03/14/2025	Food and Beverage	No dispute reported	06/30/2026	1211959936	CMS
Amgen Inc.	$20.72	03/13/2025	Food and Beverage	No dispute reported	06/30/2026	1228476571	CMS
Amgen Inc.	$17.72	03/13/2025	Food and Beverage	No dispute reported	06/30/2026	1228476581	CMS
Amgen Inc.	$24.97	03/12/2025	Food and Beverage	No dispute reported	06/30/2026	1228476567	CMS
Travere Therapeutics, Inc.	$16.45	03/11/2025	Food and Beverage	No dispute reported	06/30/2026	1244397344	CMS
AKEBIA THERAPEUTICS INC	$27.37	03/10/2025	Food and Beverage	No dispute reported	06/30/2026	1241816830	CMS
Daiichi Sankyo Inc.	$18.94	03/06/2025	Food and Beverage	No dispute reported	06/30/2026	1197052913	CMS
Otsuka America Pharmaceutical, Inc.	$24.61	03/05/2025	Food and Beverage	No dispute reported	06/30/2026	1227315241	CMS
Aurinia Pharma U.S., Inc.	$27.83	03/04/2025	Food and Beverage	No dispute reported	06/30/2026	1249413418	CMS
Fresenius USA Marketing, Inc.	$23.24	02/25/2025	Food and Beverage	No dispute reported	06/30/2026	1244806777	CMS
Amgen Inc.	$18.51	02/24/2025	Food and Beverage	No dispute reported	06/30/2026	1228476579	CMS
Otsuka America Pharmaceutical, Inc.	$19.10	02/05/2025	Food and Beverage	No dispute reported	06/30/2026	1227315239	CMS
AstraZeneca Pharmaceuticals LP	$31.89	02/03/2025	Food and Beverage	No dispute reported	06/30/2026	1206591740	CMS
Mallinckrodt Hospital Products Inc.	$38.20	01/30/2025	Food and Beverage	No dispute reported	06/30/2026	1211959934	CMS
AKEBIA THERAPEUTICS INC	$26.23	01/29/2025	Food and Beverage	No dispute reported	06/30/2026	1241816078	CMS
Ardelyx, Inc.	$15.31	01/27/2025	Food and Beverage	No dispute reported	06/30/2026	1247843126	CMS
Bayer Healthcare Pharmaceuticals Inc.	$22.11	01/22/2025	Food and Beverage	No dispute reported	06/30/2026	1225508608	CMS
Otsuka America Pharmaceutical, Inc.	$21.43	01/18/2025	Food and Beverage	No dispute reported	06/30/2026	1227315237	CMS
Calliditas Therapeutics US Inc.	$26.87	01/15/2025	Food and Beverage	No dispute reported	06/30/2026	1234994371	CMS
Fresenius USA Marketing, Inc.	$27.12	01/13/2025	Food and Beverage	No dispute reported	06/30/2026	1244806767	CMS
Ardelyx, Inc.	$26.44	01/09/2025	Food and Beverage	No dispute reported	06/30/2026	1247843124	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.

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.

Cite this record.

Permalink https://industrypayments.org/provider/npi-1952419376

Plain: WILLIAM J DAHMS, NPI 1952419376. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1952419376.
APA 7: IndustryPayments. (2026). WILLIAM J DAHMS, NPI 1952419376 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1952419376
Bluebook: WILLIAM J DAHMS, NPI 1952419376, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1952419376.

Source: Centers for Medicare & Medicaid Services, Open Payments.