Dennis Ruff
Internal Medicine · San Antonio, TXNPI 1003035718
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 1 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. Every reported general payment came from a single manufacturer, GSK. That places this record below the midpoint for internal medicine clinicians in TX, where the typical reported total is $270.
Across 1 payment — averaging $16.45 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- GSK$16
Across 129 payments — averaging $58,104 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.
- Novo Nordisk AS$7.5M
What the payments were for
- Food & beverage$16100%
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.
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 |
|---|---|---|
| GSK | 1 | $16 |
How this compares
$16 in reported general payments places this provider in the 10th percentile of 7,675 internal medicine providers in Texas.
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.