Stella Hartono, MD
Allergy & Immunology · Fresno, CANPI 1588195457
Payments from drug & device makers
What this record shows
This record is dominated by food and beverage: $3,677 of the $4,718 with a category attached, or 77.9%. It is spread thinly across 19 manufacturers, the largest accounting for just 21.2% — the pattern of someone who eats at a lot of different presentations. 2025 is the largest year on record at $3,216, 3.2 times the $1,000 reported in 2022.
Across 123 payments — averaging $38.36 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Regeneron$1K
- AstraZeneca$915
- Biocryst US Sales Co., LLC$640
- Incyte Corporation$635
- Regeneron Healthcare Solutions, Inc.$319
- GSK$318
- plus $891 from 13 others
What the payments were for
- Grants$1,00021%
- Food & beverage$3,67778%
- Education$411%
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.
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 |
|---|---|---|
| Regeneron | 1 | $1,000 |
| AstraZeneca | 18 | $915 |
| Biocryst US Sales Co., LLC | 23 | $640 |
| Incyte Corporation | 18 | $635 |
| Regeneron Healthcare Solutions, Inc. | 15 | $319 |
| GSK | 19 | $318 |
| CSL Behring | 10 | $249 |
| Blueprint Medicines Corporation | 1 | $131 |
| Galderma Laboratories, L.p. | 2 | $130 |
| ARS Pharmaceuticals Operations, Inc. | 3 | $72 |
| Amgen | 3 | $69 |
| Ionis Pharmaceuticals, Inc. | 2 | $66 |
| Sanofi | 2 | $51 |
| Pharming Healthcare, Inc. | 1 | $24 |
| Paratek Pharmaceuticals, Inc. | 1 | $23 |
| Cycle Pharmaceuticals Inc | 1 | $22 |
| Grifols USA, LLC | 1 | $21 |
| Pfizer | 1 | $17 |
| Novartis | 1 | $16 |
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
$4,718 in reported general payments places this provider in the 60th percentile of 426 allergy & immunology providers in California.
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 allergy & immunology in Fresno
- Richard DemeraFresno$140K
- Raffi TachdjianSanta Monica$3.7M
- Bob GengSan Diego$3.3M
- Vinay MehtaLaguna Niguel$1.3M
- Andrew WhiteSan Diego$752K
- Marc RiedlSan Diego$725K
- Katharine WoessnerSan Diego$581K
- Brian Modenala Jolla$453K
- Heena Shah PatelUpland$428K
- Jacob OffenbergerGranada Hills$419K
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.