Has Mark Williams, MD received payments from drug or device companies?

Yes. Drug and device makers reported $33,163 in general payments to Mark Williams, MD across 1,133 transactions between 2019–2025. Most Open Payments records nationally are meals worth under $20; a reported payment is not evidence of wrongdoing.

Does a payment mean Mark Williams, MD did something wrong?

No. Federal law requires drug and device makers to report almost every transfer of value to a physician, including a $14 sandwich at a lunch presentation. Consulting fees, research funding and royalties to device inventors are ordinary, legal parts of medicine. This site reports what was disclosed; it makes no allegation.

Where does this information about Mark Williams, MD come from?

The U.S. Centers for Medicare & Medicaid Services. Payments come from Open Payments, published under the Physician Payments Sunshine Act. Billing and prescribing figures come from the Medicare Physician & Other Practitioners and Part D Prescriber public use files for 2024.

Mark Williams, MD

Internal Medicine · Louisville, KYNPI 1710179585

Payments from drug & device makers

$33,163in general payments, 2019–2025

Across 1,133 payments — averaging $29.27 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

AstraZeneca$4K
Amgen$3K
AbbVie$2K
GSK$2K
Boehringer Ingelheim$2K
Johnson & Johnson$2K
plus $18K from 54 others

General payments by program year

Who reported the general payments

Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.

Company	Payments	Total
AstraZeneca	96	$4,447
Amgen	72	$2,512
AbbVie(2 entities)	112	$2,423
GSK	59	$2,052
Boehringer Ingelheim	57	$1,653
Johnson & Johnson	51	$1,595
Novo Nordisk	51	$1,504
Esperion Therapeutics, Inc.	67	$1,352
Novartis	26	$1,280
Amarin Pharma, Inc.	37	$1,222
Pfizer	48	$1,149
Bausch Health US, LLC	81	$1,027
Lilly USA, LLC	60	$948
Bayer	17	$691
Sanofi-aventis U.S. LLC	29	$651
ITI, Inc. (d/b/a Intra-cellular Therapies, Inc.)	12	$610
Takeda Pharmaceuticals U.S.A., Inc.	30	$574
Salix Pharmaceuticals, A Division Of Bausch Health US, LLC	24	$556
Otsuka America Pharmaceutical, Inc.	4	$479
Antares Pharma, Inc.	34	$461
Phathom Pharmaceuticals, Inc.	15	$444
Medtronic	4	$443
Exact Sciences	13	$410
Biohaven Pharmaceuticals, Inc.	7	$407
Merck	19	$352
E.r. Squibb & Sons, L.L.C.	9	$325
Biohaven Pharmaceutical Holding Company Ltd.	14	$289
Regeneron Healthcare Solutions, Inc.	3	$268
Axsome Therapeutics, Inc.	5	$257
Optinose US, Inc.	2	$244
Idorsia Pharmaceuticals US Inc	6	$206
Verona Pharma, Inc.	5	$158
Ironshore Pharmaceuticals Inc.	3	$152
Tris Pharma Inc	1	$125
Stryker	1	$125
Clarus Therapeutics Inc.	2	$125
Boston Scientific	1	$122
Azurity Pharmaceuticals, Inc.	7	$121
Lucid Diagnostics Inc.	1	$117
Vifor Pharma, Inc.	1	$112
Neurocrine Biosciences, Inc.	1	$110
Kowa Pharmaceuticals America, Inc.	7	$108
Lexicon Pharmaceuticals, Inc.	1	$105
Organogenesis Inc.	1	$102
Mylan Specialty L.p.	1	$98
Regeneron	1	$78
Eisai Inc.	5	$75
Vanda Pharmaceuticals Inc.	2	$50
Paratek Pharmaceuticals, Inc.	2	$50
Radius Health, Inc.	2	$44
Arbor Pharmaceuticals, Inc.	3	$43
Dynavax Technologies Corporation	2	$33
Gilead	2	$33
Hikma Pharmaceuticals USA	2	$28
Jazz Pharmaceuticals Inc.	2	$28
IBSA Pharma Inc.	1	$21
Viatris Specialty LLC	1	$20
Tolmar, Inc.	1	$19
Genentech USA, Inc.	1	$16
Astellas Pharma US Inc	1	$14

How this compares

$33,163 in reported general payments places this provider in the 95th percentile of 1,284 internal medicine providers in Kentucky.

See all internal medicine providers in Kentucky →

Medicare billing

Part B allowed, 2024

$76,826

Medicare patients

237

Services billed

861

What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.

Other internal medicine in Louisville

Jason ChesneyLouisville$6.3M
Robert SasserLouisville$62K
Kelley McIntyreLouisville$48K
Lal TanwaniLouisville$38K
Scott YoungLouisville$24K
Frank SimonLouisville$22K
Walter BruningLouisville$22K
Brian ParadowskiLouisville$20K
Suresh NairLouisville$20K
Yiyi TsaiLouisville$19K

See the full list for Kentucky →

Where these figures come from

Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
Identity: NPPES NPI Registry, July 2026.

Is this you, or does something look wrong? →