Katherine Marzan
Pediatric Rheumatology · Los Angeles, CANPI 1184719908
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $2,213 of the $2,450 with a category attached, or 90.3%. 4 manufacturers reported payments, led by Novartis at 51.5% of the total. Reporting peaked in 2020 at $1,263 and has fallen 98.2% since, to $23 in 2024.
Across 6 payments — averaging $408.36 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Novartis$1K
- Pfizer$950
- E.r. Squibb & Sons, L.L.C.$214
- Sanofi$23
Across 57 payments — averaging $7433.72 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.
- Novartis$191K
- Sanofi US Services Inc.$118K
- Novartis Pharma AG$84K
- UCB SA$14K
- AbbVie$12K
- Pfizer$5K
What the payments were for
- Speaking & faculty fees$2,21390%
- Food & beverage$23710%
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 |
|---|---|---|
| Novartis | 1 | $1,263 |
| Pfizer | 2 | $950 |
| E.r. Squibb & Sons, L.L.C. | 2 | $214 |
| Sanofi | 1 | $23 |
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
$2,450 in reported general payments places this provider in the 70th percentile of 39 pediatric rheumatology providers in California.
Other pediatric rheumatology in Los Angeles
- Andreas ReiffLos Angeles$6K
- Michal CidonLos Angeles$5K
- Sara HaroLos Angeles$3K
- Diane BrownLos Angeles$333
- Deborah McCurdyLos Angeles$122
- Aileen DickinsonLos Angeles$97
- Iris ReyhanLos Angeles$0
- William SoulsbySan Francisco$80K
- Vivian SaperPalo Alto$47K
- Jennifer FrankovichPalo Alto$45K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.