David Shanker, MD
Dermatology · Chicago, ILNPI 1619905734
Payments from drug & device makers
Across 229 payments — averaging $21.77 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AbbVie$673
- Regeneron Healthcare Solutions, Inc.$653
- Sanofi$580
- Dermavant Sciences, Inc.$431
- Sun Pharmaceutical Industries Inc.$317
- Novartis$295
- plus $2K from 25 others
What the payments were for
- Food & beverage$4,89598%
- Education$902%
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 |
|---|---|---|
| AbbVie | 31 | $673 |
| Regeneron Healthcare Solutions, Inc. | 24 | $653 |
| Sanofi | 21 | $580 |
| Dermavant Sciences, Inc. | 26 | $431 |
| Sun Pharmaceutical Industries Inc. | 15 | $317 |
| Novartis | 13 | $295 |
| Amgen | 11 | $248 |
| Incyte Corporation | 10 | $229 |
| Pfizer | 11 | $204 |
| Ortho Dermatologics, A Division Of Bausch Health US, LLC | 10 | $197 |
| E.r. Squibb & Sons, L.L.C. | 9 | $163 |
| Lilly USA, LLC | 7 | $128 |
| Galderma Laboratories, L.p. | 7 | $103 |
| Sanofi-aventis U.S. LLC | 1 | $90 |
| UCB, Inc. | 3 | $83 |
| Johnson & Johnson | 3 | $80 |
| Organon | 4 | $71 |
| Mayne Pharma Commercial LLC | 3 | $70 |
| Biofrontera Inc. | 4 | $70 |
| Arcutis Biotherapeutics, Inc. | 2 | $48 |
| Organogenesis Inc. | 2 | $44 |
| Boehringer Ingelheim | 2 | $41 |
| Bristol Myers Squibb | 2 | $40 |
| Blueprint Medicines Corporation | 1 | $22 |
| Dermira, Inc. | 1 | $18 |
| DUSA Pharmaceuticals, Inc. | 1 | $18 |
| EPI Health, LLC | 1 | $16 |
| Journey Medical Corporation | 1 | $14 |
| LEO Pharma Inc. | 1 | $14 |
| Genentech USA, Inc. | 1 | $13 |
| Helsinn Therapeutics (U.S.), Inc. | 1 | $12 |
How this compares
$4,985 in reported general payments places this provider in the 65th percentile of 606 dermatology providers in Illinois.
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 | 47 | $2,178 |
| Clobetasol Propionate | 61 | $2,135 |
| Ketoconazole | 86 | $1,456 |
| Fluorouracil | 21 | $1,454 |
| Fluticasone Propionate | 69 | $1,195 |
| Mometasone Furoate | 49 | $1,113 |
| Betamethasone Dipropionate | 20 | $818 |
| Betamethasone Diprop AugmentedBetamethasone/Propylene Glyc | 52 | $707 |
| Triamcinolone Acetonide | 74 | $687 |
| ValacyclovirValacyclovir Hcl | 32 | $641 |
| Clindamycin Phosphate | 21 | $562 |
| Cefdinir | 31 | $533 |
| Alclometasone Dipropionate | 13 | $441 |
| Metronidazole | 11 | $353 |
| Mupirocin | 39 | $308 |
Paid to pharmacies, not to this prescriber.
Other dermatology in Chicago
- Raj ChovatiyaChicago$3.7M
- Peter LioChicago$2.5M
- Elizabeth KiracofeChicago$1.6M
- Walter LiszewskiChicago$1.2M
- Maria ColavincenzoChicago$627K
- Carolyn JacobChicago$606K
- Roopal KunduChicago$498K
- Sarah ChamlinChicago$415K
- Omer IbrahimChicago$313K
- Joaquin BrievaChicago$311K
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.