Oleg Yerstein, MD
Neurology · Burlington, MANPI 1689093270
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $10,668 of the $12,711 with a category attached, or 83.9%. 6 manufacturers reported payments, led by Eli Lilly at 33.0% of the total. 2025 is the largest year on record at $5,293, 2.3 times the $2,268 reported in 2022.
Across 15 payments — averaging $847.43 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Eli Lilly$4K
- Lilly USA, LLC$4K
- Biogen$2K
- Siemens Medical Solutions USA, Inc.$1K
- Lundbeck LLC$950
- Life Molecular Imaging Ltd$51
Across 6 payments — averaging $3448.66 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.
- Eli Lilly$21K
What the payments were for
- Consulting fees$10,66884%
- Speaking & faculty fees$9507%
- Travel & lodging$9978%
- Food & beverage$971%
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 |
|---|---|---|
| Eli Lilly | 1 | $4,200 |
| Lilly USA, LLC | 1 | $4,200 |
| Biogen | 1 | $2,268 |
| Siemens Medical Solutions USA, Inc. | 10 | $1,042 |
| Lundbeck LLC | 1 | $950 |
| Life Molecular Imaging Ltd | 1 | $51 |
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.
- KISUNLA$4,200
- ADUHELM$2,268
- REXULTI$950
- Dimension EXL with LM$339
How this compares
$12,711 in reported general payments places this provider in the 80th percentile of 761 neurology providers in Massachusetts.
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 |
|---|---|---|
| Rivastigmine | 88 | $24,363 |
| Memantine Hcl | 195 | $10,562 |
| Memantine Hcl ErMemantine Hcl | 56 | $6,239 |
| Donepezil Hcl | 441 | $4,505 |
| Mirtazapine | 88 | $2,684 |
| Galantamine ErGalantamine Hbr | 18 | $2,092 |
| Quetiapine Fumarate | 66 | $1,739 |
| RivastigmineRivastigmine Tartrate | 34 | $1,246 |
| Sertraline Hcl | 145 | $1,224 |
| Escitalopram Oxalate | 71 | $733 |
| Olanzapine | 14 | $702 |
| Levetiracetam | 11 | $304 |
| Carbidopa-LevodopaCarbidopa/Levodopa | 12 | $274 |
| Gabapentin | 17 | $157 |
| Trazodone Hcl | 35 | $146 |
Paid to pharmacies, not to this prescriber.
Companies that both paid and supply prescribed drugs
These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.
| Company | Paid to this provider | Part D cost of their drugs |
|---|---|---|
| Lilly USA, LLCOlanzapine | $4,200 | $70214 claims |
Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 80th percentile of 761 neurology providers in Massachusetts.
Other neurology in Burlington
- Thanh NguyenBurlington$102K
- Christopher WrightBoston$2.5M
- Shivang JoshiWestborough$1.2M
- Egilius SpieringsWellesley Hills$680K
- Thomas ScammellBoston$617K
- Salvatore NapoliFoxboro$613K
- Alfred SandrockBoston$490K
- Joshua KatzWellesley$462K
- Guy BuckleBrookline$450K
- Pushpa NarayanaswamiBoston$420K
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.