Chad Mayer, DO
Allergy · Farmington Hills, MINPI 1467423855
Payments from drug & device makers
What this record shows
The money is spread across several categories — speaking fees (58.8%), food and beverage and travel and lodging — rather than concentrated in one kind of arrangement. ARS Pharmaceuticals Operations, Inc. accounts for 72.8% of it on its own, with 24 other manufacturers making up the rest. 2025 is the largest year on record at $21,342, more than ten times the $587 reported in 2019. Among allergy clinicians in MI with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 341 payments — averaging $73.84 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- ARS Pharmaceuticals Operations, Inc.$18K
- Sanofi$1K
- GSK$972
- AstraZeneca$919
- CSL Behring$758
- Regeneron Healthcare Solutions, Inc.$651
- plus $2K from 19 others
What the payments were for
- Speaking & faculty fees$14,80059%
- Travel & lodging$2,63110%
- Food & beverage$7,57230%
- Education$1781%
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 |
|---|---|---|
| ARS Pharmaceuticals Operations, Inc. | 37 | $18,328 |
| Sanofi | 51 | $1,280 |
| GSK | 52 | $972 |
| AstraZeneca | 44 | $919 |
| CSL Behring | 28 | $758 |
| Regeneron Healthcare Solutions, Inc. | 28 | $651 |
| Takeda Pharmaceuticals U.S.A., Inc. | 11 | $315 |
| Novartis | 14 | $293 |
| Pfizer | 10 | $282 |
| Kaleo, Inc. | 14 | $259 |
| Alk-abello, Inc | 10 | $187 |
| Blueprint Medicines Corporation | 7 | $165 |
| Amgen | 8 | $153 |
| Biocryst US Sales Co., LLC | 5 | $132 |
| Genentech USA, Inc. | 7 | $118 |
| Octapharma USA, Inc. | 4 | $109 |
| Sanofi-aventis U.S. LLC | 1 | $55 |
| Tersera Therapeutics LLC | 2 | $50 |
| Hospira, Inc. | 2 | $32 |
| Incyte Corporation | 1 | $25 |
| Lilly USA, LLC | 1 | $24 |
| Galderma Laboratories, L.p. | 1 | $19 |
| Phadia US Inc. | 1 | $19 |
| Shire North American Group Inc | 1 | $19 |
| ANI Pharmaceuticals, Inc. | 1 | $18 |
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
$25,181 in reported general payments places this provider in the 95th percentile of 22 allergy providers in Michigan.
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 |
|---|---|---|
| XolairOmalizumab | 17 | $46,258 |
| Trelegy ElliptaFluticasone/Umeclidin/Vilanter | 13 | $20,040 |
| Azelastine Hcl | 27 | $926 |
| Albuterol Sulfate HfaAlbuterol Sulfate | 12 | $526 |
| Montelukast Sodium | 20 | $287 |
| Fluticasone Propionate | 12 | $189 |
Paid to pharmacies, not to this prescriber.
Companies that both paid and supply prescribed drugs
These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.
| Company | Paid to this provider | Part D cost of their drugs |
|---|---|---|
| GSKTrelegy Ellipta | $972 | $20,04013 claims |
Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 95th percentile of 22 allergy providers in Michigan.
Other allergy in Farmington Hills
- Ravinder PolasaniJackson$18K
- Mutee AbdeljaberCaro$12K
- James McClellanTraverse City$11K
- Elena LewisPortage$11K
- Byra ReddySaint Joseph$9K
- Seshagiri DandamudiBattle Creek$7K
- Jasmine AlsukhonNovi$6K
- Claire WardTraverse City$3K
- Lokesh EdaraBattle Creek$3K
- Anna DobrackiBrighton$2K
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.