Zandra Rivera
Adult Health · Houston, TXNPI 1134209802
Payments from drug & device makers
What this record shows
This record is dominated by food and beverage: $9,065 of the $10,765 with a category attached, or 84.2%. It is spread thinly across 35 manufacturers, the largest accounting for just 11.9% — the pattern of someone who eats at a lot of different presentations. Among adult health clinicians in TX 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 110 payments — averaging $97.86 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Merck$1K
- Incyte Corporation$1K
- Sanofi-aventis U.S. LLC$701
- E.r. Squibb & Sons, L.L.C.$578
- Daiichi Sankyo Inc.$543
- Bristol Myers Squibb$477
- plus $6K from 29 others
What the payments were for
- Consulting fees$1,28312%
- Speaking & faculty fees$40%
- Food & beverage$9,06584%
- Education$4134%
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 |
|---|---|---|
| Merck | 1 | $1,283 |
| Incyte Corporation | 13 | $1,174 |
| Sanofi-aventis U.S. LLC | 7 | $701 |
| E.r. Squibb & Sons, L.L.C. | 5 | $578 |
| Daiichi Sankyo Inc. | 6 | $543 |
| Bristol Myers Squibb | 18 | $477 |
| Gilead(2 entities) | 4 | $466 |
| Johnson & Johnson | 4 | $449 |
| AstraZeneca | 4 | $444 |
| Regeneron Healthcare Solutions, Inc. | 4 | $406 |
| Sanofi | 3 | $379 |
| Pharmacosmos Therapeutics Inc. | 3 | $337 |
| Takeda Pharmaceuticals U.S.A., Inc. | 3 | $331 |
| Sobi, Inc | 5 | $308 |
| AbbVie | 3 | $260 |
| Eisai Inc. | 2 | $248 |
| Bayer | 2 | $214 |
| Pfizer | 2 | $184 |
| Amgen | 2 | $182 |
| Syndax Pharmaceuticals, Inc. | 2 | $176 |
| Stemline Therapeutics Inc. | 1 | $155 |
| Astellas Pharma US Inc | 2 | $149 |
| Jazz Pharmaceuticals Inc. | 1 | $144 |
| Edwards Lifesciences | 1 | $135 |
| Shionogi Inc | 1 | $125 |
| Sun Pharmaceutical Industries Inc. | 1 | $120 |
| GSK | 1 | $119 |
| Karyopharm Therapeutics Inc. | 1 | $117 |
| Vifor Pharma, Inc. | 1 | $115 |
| Seagen Inc. | 1 | $108 |
| BTG International Inc. | 1 | $97 |
| Puma Biotechnology, Inc. | 1 | $91 |
| Epizyme, Inc. | 1 | $76 |
| Gamida Cell Inc. | 2 | $48 |
| Legend Biotech USA Inc. | 1 | $26 |
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
$10,765 in reported general payments places this provider in the 95th percentile of 933 adult health 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 |
|---|---|---|
| Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim | 21 | $75 |
Paid to pharmacies, not to this prescriber.
Other adult health in Houston
- Kacey LyonsHouston$20K
- Rosa RancesHouston$17K
- Claressa RosacinaHouston$17K
- Michelle MartinHouston$15K
- Loren SemonesHouston$14K
- Anthony SantosHouston$13K
- Dashawn ThomasHouston$11K
- Brandy KhodrHouston$10K
- Janice TranHouston$10K
- Ester CerdanHouston$10K
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.