Robert Bass
Internal Medicine · San Antonio, TXNPI 1477553857
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $2,000 of the $2,025 with a category attached, or 98.8%. Merck accounts for 98.8% of it on its own, with 1 other manufacturer making up the rest.
Across 3 payments — averaging $674.89 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Merck$2K
- Organon$25
Across 166 payments — averaging $154,245 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- Janssen Research & Development, LLC$6.1M
- Hikma Pharmaceuticals USA$5.1M
- Supernus Pharmaceuticals, Inc.$3.3M
- Viiv Healthcare Company$2.6M
- Merck$2.3M
- Mitsubishi Tanabe Pharma Development America, Inc.$1.7M
- plus $4.5M from 10 others
What the payments were for
- Consulting fees$2,00099%
- Food & beverage$251%
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.
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.
- WELIREG$2,000
How this compares
$2,025 in reported general payments places this provider in the 75th percentile of 7,675 internal medicine providers in Texas.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| EliquisApixaban | 12 | $7,226 |
| Midodrine Hcl | 12 | $568 |
| Digoxin | 13 | $226 |
| Omeprazole | 21 | $217 |
| Oxcarbazepine | 11 | $200 |
| Levothyroxine Sodium | 32 | $196 |
| Tamsulosin Hcl | 26 | $128 |
| Potassium Chloride | 12 | $107 |
| Pantoprazole Sodium | 31 | $84 |
| Metoprolol Tartrate | 29 | $63 |
| Oxybutynin Chloride ErOxybutynin Chloride | 12 | $59 |
| Losartan Potassium | 15 | $51 |
| Carvedilol | 12 | $48 |
| Spironolactone | 12 | $45 |
| ClopidogrelClopidogrel Bisulfate | 12 | $40 |
Paid to pharmacies, not to this prescriber.
Other internal medicine in San Antonio
- Manuel RodriguezSan Antonio$263K
- Matthew CatesSan Antonio$248K
- Fabian Rodas OchoaSan Antonio$68K
- Darius BuzenasSan Antonio$49K
- Spencer BerthelsenSugar Land$891K
- Hameed AliTemple$773K
- Marc TribbleDallas$693K
- Gary SinclairDallas$599K
- Mohammed Al-NajjarEl Paso$586K
- Han SchmidlyDallas$465K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.