Kristine Hirschfield, MD
Internal Medicine · Los Angeles, CANPI 1780670091
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 98.1% of the total across 225 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. It is spread thinly across 26 manufacturers, the largest accounting for just 21.9% — the pattern of someone who eats at a lot of different presentations. Among internal medicine clinicians in CA with any reported payments, this total sits in the top 10% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 225 payments — averaging $23.55 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Sanofi$1K
- Regeneron Healthcare Solutions, Inc.$1K
- Johnson & Johnson$549
- Pfizer$407
- Sun Pharmaceutical Industries Inc.$317
- Amgen$317
- plus $2K from 20 others
What the payments were for
- Food & beverage$5,19898%
- Education$1002%
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 |
|---|---|---|
| Sanofi | 33 | $1,160 |
| Regeneron Healthcare Solutions, Inc. | 31 | $1,032 |
| Johnson & Johnson | 27 | $549 |
| Pfizer | 26 | $407 |
| Sun Pharmaceutical Industries Inc. | 13 | $317 |
| Amgen | 17 | $317 |
| Galderma Laboratories, L.p. | 18 | $305 |
| AbbVie(2 entities) | 11 | $236 |
| Lilly USA, LLC | 10 | $198 |
| Incyte Corporation | 7 | $138 |
| Ortho Dermatologics, A Division Of Bausch Health US, LLC | 5 | $84 |
| LEO Pharma Inc. | 4 | $83 |
| UCB, Inc. | 2 | $73 |
| Novartis | 3 | $71 |
| Pierre Fabre Pharmaceuticals, Inc. | 3 | $68 |
| Prugen, Inc. Pharmaceuticals | 3 | $48 |
| Boehringer Ingelheim | 1 | $30 |
| Mayne Pharma Commercial LLC | 2 | $29 |
| Journey Medical Corporation | 1 | $27 |
| EPI Health, LLC | 2 | $25 |
| Bristol Myers Squibb | 1 | $22 |
| Blueprint Medicines Corporation | 1 | $20 |
| Merz North America, Inc. | 1 | $19 |
| Dermavant Sciences, Inc. | 1 | $18 |
| Aclaris Therapeutics, Inc. | 1 | $13 |
| Apyx Medical Corporation | 1 | $12 |
How this compares
$5,298 in reported general payments places this provider in the 90th percentile of 13,581 internal medicine 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.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Cosentyx Sensoready (2 Pens)Secukinumab | 21 | $155,490 |
| Clobetasol Propionate | 47 | $2,813 |
| Metronidazole | 19 | $1,804 |
| Fluorouracil | 16 | $980 |
| Ketoconazole | 39 | $740 |
| Doxycycline Hyclate | 33 | $658 |
| Triamcinolone Acetonide | 12 | $167 |
| Mupirocin | 22 | $131 |
| Hydrocortisone | 12 | $111 |
Paid to pharmacies, not to this prescriber.
Other internal medicine in Los Angeles
- William HardyLos Angeles$704K
- Soha DolatabadiLos Angeles$458K
- Matthew HerrmannLos Angeles$384K
- Koppany VisnyeiLos Angeles$287K
- Jaime BetancourtLos Angeles$286K
- William KingLos Angeles$227K
- Andrew ChengSouth San Francisco$55.1M
- Tung NgoNewport Beach$4.9M
- Christian EversullStanford$2.9M
- Christian SandrockSacramento$2.1M
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.