Stephen Gruber
Clinical Genetics (M.D.) · Duarte, CANPI 1932280377
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $4,568 of the $4,568 with a category attached, or 100.0%. AstraZeneca accounts for 82.5% of it on its own, with 1 other manufacturer making up the rest.
Across 2 payments — averaging $2283.75 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AstraZeneca$4K
- Mallinckrodt Enterprises LLC$800
Across 2 payments — averaging $312,750 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.
- Exact Sciences$400K
- Janssen Scientific Affairs, LLC$226K
What the payments were for
- Consulting fees$4,568100%
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 |
|---|---|---|
| AstraZeneca | 1 | $3,768 |
| Mallinckrodt Enterprises LLC | 1 | $800 |
How this compares
$4,568 in reported general payments places this provider in the 75th percentile of 91 clinical genetics (m.d.) providers in California.
Other clinical genetics (m.d.) in Duarte
- Joanne JeterDuarte$128
- Nicola LongoLos Angeles$295K
- Jose CamachoSan Francisco$126K
- John GargusOrange$124K
- John CroninWoodside$115K
- Virginia KimonisOrange$79K
- Walla Al-HertaniOrange$61K
- Pedro SanchezLos Angeles$29K
- Stephen CederbaumLos Angeles$28K
- Deborah KrakowSanta Monica$25K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.