Has Margaret Adair, MD received payments from drug or device companies?

Yes. Drug and device makers reported $73,966 in general payments to Margaret Adair, MD across 810 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 Margaret Adair, 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 Margaret Adair, 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.

Margaret Adair, MD

Allergy & Immunology · Coppell, TXNPI 1487827820

Payments from drug & device makers

$73,966in general payments, 2019–2025

Across 810 payments — averaging $91.32 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

Astrazeneca UK Limited$41K
AstraZeneca$14K
GSK$8K
Regeneron Healthcare Solutions, Inc.$2K
Sanofi$1K
Grifols USA, LLC$824
plus $6K from 33 others

What the payments were for

Speaking & faculty fees$250%
Travel & lodging$1,1007%
Food & beverage$15,61192%
Education$1451%

Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.

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 UK Limited	12	$41,043
AstraZeneca	122	$13,698
GSK	125	$8,334
Regeneron Healthcare Solutions, Inc.	89	$2,306
Sanofi	55	$1,271
Grifols USA, LLC	44	$824
Novartis	37	$730
Amgen	44	$608
Takeda Pharmaceuticals U.S.A., Inc.	29	$587
AbbVie	32	$537
Genentech USA, Inc.	29	$510
Incyte Corporation	22	$434
Pfizer	22	$415
Alk-abello, Inc	17	$395
Blueprint Medicines Corporation	19	$342
Kaleo, Inc.	15	$268
Optinose US, Inc.	12	$200
Galderma Laboratories, L.p.	13	$172
Teva Pharmaceuticals USA, Inc.	8	$165
ARS Pharmaceuticals Operations, Inc.	9	$150
Biocryst US Sales Co., LLC	8	$147
Shire North American Group Inc	7	$115
CSL Behring	5	$103
Organon	6	$100
Lilly USA, LLC	3	$74
Aimmune Therapeutics, Inc.	4	$68
Boehringer Ingelheim	4	$59
Arcutis Biotherapeutics, Inc.	2	$38
Pharming Healthcare, Inc.	2	$37
Phadia US Inc.	2	$37
Merck	2	$32
Hikma Pharmaceuticals USA	2	$30
Greer Laboratories, Inc.	2	$26
USWM, LLC	1	$24
Octapharma USA, Inc.	1	$22
Mylan Specialty L.p.	1	$19
Mylan Pharmaceuticals Inc.	1	$18
Insmed, Inc.	1	$15
Eyevance Pharmaceuticals LLC	1	$12

What the payments were tied to

Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.

How this compares

$73,966 in reported general payments places this provider in the 85th percentile of 336 allergy & immunology providers in Texas.

See all allergy & immunology providers in Texas →

Medicare billing

Part B allowed, 2024

$38,890

Medicare patients

Services billed

2,479

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.

Most prescribed under Part D

Drug	Claims	Cost to plans & patients
Ipratropium Bromide	20	$887
Azelastine Hcl	14	$301

Paid to pharmacies, not to this prescriber.

Other allergy & immunology in Coppell

William HowlandAustin$3.6M
Russell PerryBeaumont$3.2M
Barbara BaxterDallas$2.5M
Lyndon MansfieldEl Paso$2.4M
Dale MoharKerrville$2.3M
Erika GonzalezSan Antonio$2.2M
Richard WassermanDallas$1.9M
Joseph DiazSan Antonio$1.8M
Niran AmarWaco$840K
Robert JacobsSan Antonio$757K

See the full list for Texas →

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.

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