Robert Ziering, MD
Allergy & Immunology · Vista, CANPI 1215933148
Payments from drug & device makers
Across 512 payments — averaging $33.61 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Novartis$7K
- Sanofi$1K
- GSK$1K
- AstraZeneca$1K
- Takeda Pharmaceuticals U.S.A., Inc.$992
- Regeneron Healthcare Solutions, Inc.$718
- plus $5K from 25 others
What the payments were for
- Consulting fees$4,62527%
- Speaking & faculty fees$2001%
- Travel & lodging$1,1697%
- Food & beverage$11,05764%
- Education$1591%
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 | 41 | $6,652 |
| Sanofi | 75 | $1,469 |
| GSK | 66 | $1,398 |
| AstraZeneca | 53 | $1,295 |
| Takeda Pharmaceuticals U.S.A., Inc. | 51 | $992 |
| Regeneron Healthcare Solutions, Inc. | 34 | $718 |
| Amgen | 25 | $661 |
| Shire North American Group Inc | 15 | $569 |
| CSL Behring | 23 | $520 |
| Pfizer | 23 | $428 |
| Grifols USA, LLC | 21 | $414 |
| Biocryst US Sales Co., LLC | 9 | $302 |
| Genentech USA, Inc. | 12 | $241 |
| Optinose US, Inc. | 10 | $203 |
| Boehringer Ingelheim | 10 | $202 |
| Kaleo, Inc. | 9 | $167 |
| LEO Pharma Inc. | 6 | $154 |
| Teva Pharmaceuticals USA, Inc. | 5 | $153 |
| Pharming Healthcare, Inc. | 6 | $132 |
| Sanofi-aventis U.S. LLC | 1 | $98 |
| Alk-abello, Inc | 2 | $87 |
| Octapharma USA, Inc. | 3 | $85 |
| Ionis Pharmaceuticals, Inc. | 2 | $68 |
| AbbVie | 2 | $49 |
| Seqirus USA Inc | 2 | $37 |
| Hospira, Inc. | 1 | $31 |
| Bio Products Laboratory USA, Inc. | 1 | $22 |
| Galderma Laboratories, L.p. | 1 | $20 |
| Incyte Corporation | 1 | $20 |
| Azurity Pharmaceuticals, Inc. | 1 | $15 |
| Sunovion Pharmaceuticals Inc. | 1 | $11 |
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
$17,210 in reported general payments places this provider in the 80th 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 |
|---|---|---|
| XolairOmalizumab | 32 | $98,037 |
| NucalaMepolizumab | 24 | $85,130 |
| TezspireTezepelumab-Ekko | 18 | $78,418 |
| Trelegy ElliptaFluticasone/Umeclidin/Vilanter | 80 | $74,237 |
| Dupixent PenDupilumab | 19 | $72,738 |
| Dupixent SyringeDupilumab | 12 | $44,904 |
| Advair HfaFluticasone Propion/Salmeterol | 63 | $35,766 |
| Spiriva RespimatTiotropium Bromide | 38 | $33,287 |
| Breztri AerosphereBudesonide/Glycopyr/Formoterol | 35 | $27,601 |
| XhanceFluticasone Propionate | 19 | $16,633 |
| Azelastine Hcl | 345 | $13,741 |
| Breo ElliptaFluticasone/Vilanterol | 16 | $9,033 |
| Fluticasone-Salmeterol HfaFluticasone Propion/Salmeterol | 17 | $8,815 |
| DuleraMometasone/Formoterol | 20 | $8,209 |
| SymbicortBudesonide/Formoterol Fumarate | 23 | $8,156 |
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 |
|---|---|---|
| GSKNucala, Trelegy Ellipta, Breo Ellipta, Arnuity Ellipta | $1,398 | $174,123142 claims |
| AstraZenecaTezspire, Breztri Aerosphere, Symbicort | $1,295 | $114,17676 claims |
| Boehringer IngelheimSpiriva Respimat | $202 | $33,28738 claims |
| Optinose US, Inc.Xhance | $203 | $16,63319 claims |
| Teva Pharmaceuticals USA, Inc.Qvar Redihaler | $153 | $7,06920 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 80th percentile of 426 allergy & immunology providers in California.
Other allergy & immunology in Vista
- Kenneth KimLong Beach$18.5M
- Purvi MehraSan Diego$6.3M
- Bob GengSan Diego$6M
- Alexander GreinerSan Diego$4.8M
- Tonny TanusBakersfield$4.5M
- Raffi TachdjianSanta Monica$4.2M
- Vinay MehtaLaguna Niguel$3.3M
- Alan GoldsobelSan Jose$3.3M
- Steven WeinsteinHuntington Beach$3M
- James WolfeSan Jose$2.5M
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.