Helene Emsellem, MD
Neurology · Potomac, MDNPI 1790720001
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $19,553 of the $26,146 with a category attached, or 74.8%. 11 manufacturers reported payments, led by Philips North America LLC at 29.1% of the total.
Across 43 payments — averaging $608.04 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Philips North America LLC$8K
- Takeda Pharmaceuticals U.S.A., Inc.$5K
- Harmony Biosciences LLC$5K
- Vertex$4K
- Jazz Pharmaceuticals Inc.$4K
- Avadel CNS Pharmaceuticals, LLC$346
- plus $551 from 5 others
Across 391 payments — averaging $3694.79 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.
- Takeda Pharmaceuticals U.S.A., Inc.$643K
- Jazz Pharmaceuticals Inc.$230K
- Vanda Pharmaceuticals Inc.$190K
- Merck$168K
- Harmony Biosciences LLC$122K
- Philips North America LLC$79K
- plus $13K from 1 others
What the payments were for
- Consulting fees$19,55375%
- Speaking & faculty fees$4,36017%
- Travel & lodging$1611%
- Food & beverage$1,9157%
- Education$1581%
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 |
|---|---|---|
| Philips North America LLC | 6 | $7,617 |
| Takeda Pharmaceuticals U.S.A., Inc. | 3 | $5,205 |
| Harmony Biosciences LLC | 7 | $4,802 |
| Vertex | 7 | $4,100 |
| Jazz Pharmaceuticals Inc. | 9 | $3,526 |
| Avadel CNS Pharmaceuticals, LLC | 3 | $346 |
| Inspire Medical Systems, Inc. | 3 | $235 |
| Axsome Therapeutics, Inc. | 1 | $120 |
| Avadel Specialty Pharmaceuticals, LLC | 1 | $112 |
| Idorsia Pharmaceuticals US Inc | 1 | $58 |
| Resmed Corp | 2 | $26 |
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
$26,146 in reported general payments places this provider in the 85th percentile of 442 neurology providers in Maryland.
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 |
|---|---|---|
| XywavSodium,calcium,mag,pot Oxybate | 12 | $235,933 |
| Modafinil | 22 | $3,155 |
| Zolpidem Tartrate | 55 | $2,355 |
| Armodafinil | 19 | $1,187 |
| Gabapentin | 49 | $454 |
| Trazodone Hcl | 22 | $216 |
| Clonazepam | 13 | $59 |
Paid to pharmacies, not to this prescriber.
Other neurology in Potomac
- Daniel BeckerLutherville$1.6M
- Sangjin OhGlen Burnie$1.5M
- Pavel KleinBethesda$709K
- Ruwani GunawardaneFulton$479K
- Michael PolydefkisBaltimore$371K
- David CornblathLutherville$345K
- Shiv SaidhaBaltimore$298K
- Santiago Mazuera MesiaBaltimore$258K
- Bruce RabinLutherville$228K
- Thomas CrawfordBaltimore$215K
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.