Karen Hammerman, MD
Dermatology · Brooklyn, NYNPI 1083934087
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 542 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 32 manufacturers, the largest accounting for just 12.5% — the pattern of someone who eats at a lot of different presentations.
Across 542 payments — averaging $18.07 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Regeneron Healthcare Solutions, Inc.$1K
- AbbVie$1K
- Novartis$867
- Pfizer$637
- Amgen$582
- Galderma Laboratories, L.p.$577
- plus $5K from 26 others
What the payments were for
- Food & beverage$9,796100%
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 Healthcare Solutions, Inc. | 49 | $1,221 |
| AbbVie(2 entities) | 55 | $1,130 |
| Novartis | 43 | $867 |
| Pfizer | 32 | $637 |
| Amgen | 28 | $582 |
| Galderma Laboratories, L.p. | 48 | $577 |
| Mayne Pharma Commercial LLC | 48 | $511 |
| Incyte Corporation | 19 | $478 |
| Sanofi | 20 | $474 |
| Biofrontera Inc. | 21 | $381 |
| Lilly USA, LLC | 23 | $374 |
| Johnson & Johnson | 19 | $371 |
| Sun Pharmaceutical Industries Inc. | 15 | $322 |
| Arcutis Biotherapeutics, Inc. | 19 | $280 |
| LEO Pharma Inc. | 16 | $223 |
| E.r. Squibb & Sons, L.L.C. | 8 | $193 |
| Bristol Myers Squibb | 11 | $191 |
| Dermavant Sciences, Inc. | 23 | $166 |
| Encore Dermatology Inc. | 11 | $148 |
| Dermira, Inc. | 4 | $108 |
| Ortho Dermatologics, A Division Of Bausch Health US, LLC | 5 | $104 |
| VYNE Pharmaceuticals Inc. | 5 | $93 |
| UCB, Inc. | 3 | $56 |
| Boehringer Ingelheim | 2 | $52 |
| EPI Health, LLC | 3 | $50 |
| Journey Medical Corporation | 3 | $46 |
| Almirall LLC | 2 | $37 |
| Medimetriks Pharmaceuticals, Inc. | 2 | $33 |
| Prugen, Inc. Pharmaceuticals | 2 | $27 |
| Kyowa Kirin, Inc. | 1 | $27 |
| Botanix SB Inc | 1 | $21 |
| Helsinn Therapeutics (U.S.), Inc. | 1 | $16 |
How this compares
$9,796 in reported general payments places this provider in the 75th percentile of 1,151 dermatology providers in New York.
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 |
|---|---|---|
| Fluocinonide | 61 | $3,003 |
| Metronidazole | 36 | $1,970 |
| Ketoconazole | 100 | $1,686 |
| Triamcinolone Acetonide | 82 | $1,485 |
| Mupirocin | 148 | $1,243 |
| Clindamycin Phosphate | 22 | $938 |
| Betamethasone Dipropionate | 11 | $829 |
| Clobetasol Propionate | 14 | $774 |
| ValacyclovirValacyclovir Hcl | 23 | $723 |
| Clotrimazole | 20 | $607 |
| Mometasone Furoate | 15 | $353 |
| Ammonium Lactate | 18 | $315 |
| Nystatin | 29 | $315 |
| Glycopyrrolate | 13 | $299 |
| Doxycycline Hyclate | 13 | $189 |
Paid to pharmacies, not to this prescriber.
Other dermatology in Brooklyn
- Hilary BaldwinBrooklyn$1.5M
- Steven BaranowitzBrooklyn$625K
- Susan BardBrooklyn$425K
- Nanette SilverbergBrooklyn$337K
- Alexandra GolantNew York$3.6M
- David CohenNew York$3M
- Michael CameronNew York$2.6M
- Saakshi KhattriNew York$2.4M
- Amy WechslerNew York$2.4M
- Jeffrey WeinbergKew Gardens$2.3M
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.