Muhammad Najjar, MD
Sleep Medicine · Northbrook, ILNPI 1265489140
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $474,791 of the $478,567 with a category attached, or 99.2%. SNAP Diagnostics LLC accounts for 99.2% of it on its own, with 6 other manufacturers making up the rest. Among sleep medicine clinicians in IL with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 41 payments — averaging $11,672 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- SNAP Diagnostics LLC$475K
- Sleep Science Resource, LLC.$2K
- Inspire Medical Systems, Inc.$1K
- Jazz Pharmaceuticals Inc.$476
- Harmony Biosciences LLC$157
- Avadel CNS Pharmaceuticals, LLC$30
- plus $22 from 1 others
What the payments were for
- Consulting fees$2,0000%
- Speaking & faculty fees$474,79199%
- Travel & lodging$8330%
- Food & beverage$6540%
- Education$2900%
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 |
|---|---|---|
| SNAP Diagnostics LLC | 7 | $474,791 |
| Sleep Science Resource, LLC. | 1 | $2,000 |
| Inspire Medical Systems, Inc. | 15 | $1,093 |
| Jazz Pharmaceuticals Inc. | 11 | $476 |
| Harmony Biosciences LLC | 5 | $157 |
| Avadel CNS Pharmaceuticals, LLC | 1 | $30 |
| Axsome Therapeutics, Inc. | 1 | $22 |
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.
- SNAP Diagnostics study$366,291
- Inspire$930
- SUNOSI$125
How this compares
$478,567 in reported general payments places this provider in the 95th percentile of 79 sleep medicine 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 |
|---|---|---|
| Gabapentin | 20 | $317 |
| Trazodone Hcl | 19 | $161 |
Paid to pharmacies, not to this prescriber.
Other sleep medicine in Northbrook
- Phyllis ZeeChicago$214K
- Thomas FreedomGlenview$124K
- Syed SayeeduddinBrookfield$65K
- Hrayr AttarianChicago$43K
- Reena Dhanda-PatilChicago$41K
- Amy GuralnickChicago$19K
- Ahmer AliLake Barrington$15K
- Nawaid ShakirSchaumburg$15K
- Anna IvanenkoElk Grove Village$14K
- Lindsay McCulloughChicago$11K
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.