Malgorzata Bach, MD
Neurology · Lake Barrington, ILNPI 1801852322
Payments from drug & device makers
What this record shows
The money is spread across several categories — speaking fees (57.5%), food and beverage and consulting fees — rather than concentrated in one kind of arrangement. Biogen accounts for 81.8% of it on its own, with 12 other manufacturers making up the rest. Reporting peaked in 2021 at $3,588 and has fallen 94.8% since, to $187 in 2025.
Across 37 payments — averaging $152.92 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Biogen$5K
- Pfizer$189
- Inspire Medical Systems, Inc.$181
- Medtronic$160
- Alnylam Pharmaceuticals Inc.$120
- AstraZeneca$110
- plus $270 from 7 others
Across 2 payments — averaging $4225.50 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.
- Biogen$8K
What the payments were for
- Consulting fees$93016%
- Speaking & faculty fees$3,25558%
- Food & beverage$1,45426%
- Education$190%
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 |
|---|---|---|
| Biogen | 12 | $4,626 |
| Pfizer | 9 | $189 |
| Inspire Medical Systems, Inc. | 2 | $181 |
| Medtronic | 2 | $160 |
| Alnylam Pharmaceuticals Inc. | 3 | $120 |
| AstraZeneca | 1 | $110 |
| AbbVie | 1 | $101 |
| Corium, LLC | 2 | $45 |
| Amgen | 1 | $33 |
| Tanabe Pharma America, Inc. | 1 | $25 |
| Johnson & Johnson | 1 | $23 |
| Xeris Pharmaceuticals, Inc. | 1 | $23 |
| Abbott | 1 | $21 |
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
$5,658 in reported general payments places this provider in the 75th percentile of 790 neurology 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 |
|---|---|---|
| Memantine Hcl ErMemantine Hcl | 345 | $30,904 |
| Memantine Hcl | 932 | $27,112 |
| Rivastigmine | 163 | $25,756 |
| MyrbetriqMirabegron | 27 | $23,538 |
| Donepezil Hcl | 1,291 | $12,451 |
| Galantamine Hbr | 141 | $8,984 |
| RivastigmineRivastigmine Tartrate | 119 | $5,851 |
| RytaryCarbidopa/Levodopa | 11 | $5,060 |
| Sertraline Hcl | 522 | $4,585 |
| Carbidopa-Levodopa ErCarbidopa/Levodopa | 100 | $4,567 |
| Mirtazapine | 160 | $3,706 |
| Galantamine ErGalantamine Hbr | 37 | $3,619 |
| Carbidopa-LevodopaCarbidopa/Levodopa | 142 | $3,146 |
| Quetiapine Fumarate | 175 | $2,715 |
| Duloxetine Hcl | 138 | $2,611 |
Paid to pharmacies, not to this prescriber.
Other neurology in Lake Barrington
- Andrew GordonLake Barrington$765K
- Daniele AndersonLake Barrington$191K
- George KatsamakisLake Barrington$190K
- Augusto MiravalleChicago$1.4M
- Lori GuytonHerrin$1.1M
- Daniel WynnNorthbrook$812K
- Arthur ItkinPalos Heights$808K
- Martha McGrawWinfield$625K
- Reuben ValenzuelaPeoria$590K
- Adil JavedChicago$584K
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.