Tracy Hwangpo
Allergy & Immunology · Birmingham, ALNPI 1841451101
Payments from drug & device makers
What this record shows
11 manufacturers reported payments, led by CSL Behring at 54.6% of the total. Reporting peaked in 2024 at $2,591 and has fallen 76.3% since, to $614 in 2025. That places this record below the midpoint for allergy & immunology clinicians in AL, where the typical reported total is $8,006.
Across 47 payments — averaging $107.96 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- CSL Behring$3K
- Blueprint Medicines Corporation$585
- AstraZeneca$564
- Takeda Pharmaceuticals U.S.A., Inc.$414
- Amgen$333
- Genentech USA, Inc.$125
- plus $284 from 5 others
What the payments were for
- Consulting fees$2,53550%
- Food & beverage$2,53950%
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 |
|---|---|---|
| CSL Behring | 5 | $2,769 |
| Blueprint Medicines Corporation | 5 | $585 |
| AstraZeneca | 6 | $564 |
| Takeda Pharmaceuticals U.S.A., Inc. | 21 | $414 |
| Amgen(2 entities) | 3 | $333 |
| Genentech USA, Inc. | 1 | $125 |
| GSK | 1 | $117 |
| Regeneron Healthcare Solutions, Inc. | 2 | $73 |
| Sobi, Inc | 1 | $63 |
| Pfizer | 1 | $17 |
| Pharming Healthcare, Inc. | 1 | $14 |
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
$5,074 in reported general payments places this provider in the 45th percentile of 30 allergy & immunology providers in Alabama.
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 |
|---|---|---|
| HizentraImmun Glob G(Igg)/Pro/Iga 0-50 | 160 | $1,178,088 |
| CuvitruImmun Glob G(Igg)/Gly/Iga Ov50 | 60 | $416,506 |
| Gamunex-CImmune Globul G/Gly/Iga Avg 46 | 48 | $198,050 |
| GammaplexImmun Glob G(Igg)/Gly/Iga 0-50 | 49 | $151,916 |
| PrivigenImmun Glob G(Igg)/Pro/Iga 0-50 | 17 | $114,128 |
| Epinephrine | 46 | $13,644 |
| Azithromycin | 106 | $2,804 |
| Fluticasone Propionate | 21 | $687 |
| Ipratropium Bromide | 13 | $424 |
| Levocetirizine Dihydrochloride | 24 | $319 |
| Doxycycline Monohydrate | 15 | $311 |
| Lidocaine-PrilocaineLidocaine/Prilocaine | 27 | $291 |
| Sodium Chloride0.9 % Sodium Chloride | 27 | $198 |
| Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim | 19 | $57 |
| Diphenhydramine Hcl | 17 | $48 |
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 |
|---|---|---|
| CSL BehringHizentra, Privigen | $2,769 | $1,292,216177 claims |
| Takeda Pharmaceuticals U.S.A., Inc.Cuvitru | $414 | $416,50660 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 45th percentile of 30 allergy & immunology providers in Alabama.
Other allergy & immunology in Birmingham
- Thomas AtkinsonBirmingham$53K
- Njeri MainaBirmingham$44K
- Michael PolcariBirmingham$39K
- Carol SmithBirmingham$11K
- Amy CajacobBirmingham$4K
- William MasseyBirmingham$3K
- Elizabeth GeorgeBirmingham$3K
- Kathleen GrisantiBirmingham$1K
- Miranda CurtissBirmingham$811
- John AndersonHomewood$789K
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.