Alain Rook, MD
Dermatology · Philadelphia, PANPI 1760417372
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $53,395 of the $70,145 with a category attached, or 76.1%. 7 manufacturers reported payments, led by Regeneron at 37.1% of the total. Reporting peaked in 2021 at $28,228 and has fallen 99.9% since, to $36 in 2025. Among dermatology clinicians in PA 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 26 payments — averaging $2697.87 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Regeneron$26K
- Mallinckrodt Hospital Products Inc.$16K
- Mallinckrodt Enterprises LLC$16K
- Kyowa Kirin, Inc.$6K
- Therakos LLC$5K
- Almirall LLC$427
- plus $76 from 1 others
Across 4 payments — averaging $26,641 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.
- Amgen$89K
- AstraZeneca$17K
What the payments were for
- Consulting fees$53,39576%
- Speaking & faculty fees$14,20020%
- Travel & lodging$2,1593%
- Food & beverage$3901%
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 | $26,040 |
| Mallinckrodt Hospital Products Inc. | 6 | $15,918 |
| Mallinckrodt Enterprises LLC | 7 | $15,841 |
| Kyowa Kirin, Inc. | 8 | $6,383 |
| Therakos LLC | 1 | $5,460 |
| Almirall LLC | 1 | $427 |
| Lilly USA, LLC | 2 | $76 |
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.
- DUPIXENT$26,040
- CELLEX/XTS PHOTOPHERESIS SYSTEM$15,743
- UVADEX$11,817
- CELLEX$9,561
- POTELIGEO$6,193
How this compares
$70,145 in reported general payments places this provider in the 90th percentile of 626 dermatology providers in Pennsylvania.
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 |
|---|---|---|
| ActimmuneInterferon Gamma-1b,recomb. | 23 | $1,498,627 |
| Bexarotene | 16 | $66,434 |
| PegasysPeginterferon Alfa-2a | 13 | $53,770 |
| Clobetasol Propionate | 25 | $1,772 |
| Halobetasol Propionate | 12 | $809 |
| Rosuvastatin Calcium | 18 | $737 |
| Triamcinolone Acetonide | 18 | $273 |
| Levothyroxine Sodium | 11 | $51 |
Paid to pharmacies, not to this prescriber.
Other dermatology in Philadelphia
- Stephen HessPhiladelphia$1.7M
- Joel GelfandPhiladelphia$649K
- Victoria WerthPhiladelphia$547K
- Nicholas MollanazarPhiladelphia$369K
- Harold FarberPhiladelphia$284K
- Jules LipoffPhiladelphia$259K
- Susan TaylorPhiladelphia$207K
- Joy WanPhiladelphia$176K
- Harold MilsteinPhiladelphia$120K
- David MargolisPhiladelphia$118K
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.