Margaret Adair, MD
Allergy & Immunology · Coppell, TXNPI 1487827820
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 92.5% of the total across 795 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. It is spread thinly across 39 manufacturers, the largest accounting for just 15.6% — the pattern of someone who eats at a lot of different presentations.
Across 795 payments — averaging $21.24 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AstraZeneca$3K
- Regeneron Healthcare Solutions, Inc.$2K
- GSK$2K
- Astrazeneca UK Limited$1K
- Sanofi$1K
- Grifols USA, LLC$824
- plus $6K from 33 others
Across 15 payments — averaging $3805.61 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- Astrazeneca UK Limited$40K
- AstraZeneca$11K
- GSK$6K
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 | 121 | $2,638 |
| Regeneron Healthcare Solutions, Inc. | 89 | $2,306 |
| GSK | 115 | $1,956 |
| Astrazeneca UK Limited | 8 | $1,397 |
| 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.
- FASENRA$1,269
- DUPIXENT$124
- SYMBICORT$120
- BREZTRI AEROSPHERE$120
How this compares
$16,882 in reported general payments places this provider in the 80th percentile of 336 allergy & immunology providers in Texas.
Medicare billing
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
- Joseph DiazSan Antonio$1.1M
- Richard WassermanDallas$452K
- Matthew FeldmanDallas$410K
- Lukena KarkhanisSan Antonio$377K
- Paul VigoAustin$304K
- Neha ReshamwalaAustin$303K
- Lara GrossDallas$171K
- Bobby LanierBenbrook$149K
- Juan ZambranoHouston$146K
- Serge de GolovineBellaire$125K
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.