Alan Gorenberg, MD
Allergy & Immunology · Orange, CANPI 1730115221
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 8 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 5 manufacturers reported payments, led by Novartis at 54.9% of the total. 2025 is the largest year on record at $135, 9.8 times the $14 reported in 2019. That places this record below the midpoint for allergy & immunology clinicians in CA, where the typical reported total is $2,148.
Across 8 payments — averaging $21.13 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Novartis$93
- Cycle Pharmaceuticals Inc$22
- Azurity Pharmaceuticals, Inc.$20
- Merck$20
- AbbVie$14
What the payments were for
- Food & beverage$169100%
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 |
|---|---|---|
| Novartis | 4 | $93 |
| Cycle Pharmaceuticals Inc | 1 | $22 |
| Azurity Pharmaceuticals, Inc. | 1 | $20 |
| Merck | 1 | $20 |
| AbbVie | 1 | $14 |
How this compares
$169 in reported general payments places this provider in the 15th percentile of 426 allergy & immunology providers in California.
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 |
|---|---|---|
| TakhzyroLanadelumab-Flyo | 21 | $1,109,630 |
| OrladeyoBerotralstat Hydrochloride | 14 | $576,517 |
| Dupixent SyringeDupilumab | 131 | $482,281 |
| XolairOmalizumab | 103 | $330,243 |
| HyqviaIgg/Hyaluronidase,recombinant | 15 | $208,593 |
| Dupixent PenDupilumab | 30 | $110,523 |
| Gammagard S-DImmun Glob G/Gly/Gluc/Iga 0-50 | 12 | $105,946 |
| Trelegy ElliptaFluticasone/Umeclidin/Vilanter | 123 | $102,916 |
| Breztri AerosphereBudesonide/Glycopyr/Formoterol | 31 | $21,514 |
| Spiriva RespimatTiotropium Bromide | 16 | $9,374 |
| Ipratropium Bromide | 44 | $1,627 |
| Esomeprazole Magnesium | 33 | $1,411 |
| Albuterol Sulfate HfaAlbuterol Sulfate | 22 | $1,267 |
| Roflumilast | 11 | $765 |
| Alclometasone Dipropionate | 11 | $697 |
Paid to pharmacies, not to this prescriber.
Other allergy & immunology in Orange
- Donald LevyOrange$207K
- Wan-Yin ChanOrange$19K
- Raffi TachdjianSanta Monica$3.7M
- Bob GengSan Diego$3.3M
- Vinay MehtaLaguna Niguel$1.3M
- Andrew WhiteSan Diego$752K
- Marc RiedlSan Diego$725K
- Katharine WoessnerSan Diego$581K
- Brian Modenala Jolla$453K
- Heena Shah PatelUpland$428K
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.