Elizabeth Grubbs, MD
Surgical Oncology · Houston, TXNPI 1063458206
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 2 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. Serpex Medical Inc accounts for 90.3% of it on its own, with 1 other manufacturer making up the rest. That places this record below the midpoint for surgical oncology clinicians in TX, where the typical reported total is $1,562.
Across 2 payments — averaging $98.66 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Serpex Medical Inc$178
- Medtronic$19
Across 5 payments — averaging $150,000 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.
- Exelixis Inc.$750K
What the payments were for
- Food & beverage$197100%
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 |
|---|---|---|
| Serpex Medical Inc | 1 | $178 |
| Medtronic | 1 | $19 |
How this compares
$197 in reported general payments places this provider in the 20th percentile of 191 surgical oncology 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.
Other surgical oncology in Houston
- Merrick RossHouston$216K
- Kelly HuntHouston$104K
- Michael KimHouston$51K
- Jeffrey GershenwaldHouston$50K
- Naruhiko IkomaHouston$48K
- Anthony LucciHouston$41K
- Helmi KhadraHouston$39K
- Hop Tran CaoHouston$32K
- Rosario HwangHouston$25K
- Amanda ArringtonHouston$13K
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.