Dolly Roy, MD
Neurology · Thousand Oaks, CANPI 1053469072
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $74,435 of the $105,743 with a category attached, or 70.4%. Biogen accounts for 64.1% of it on its own, with 8 other manufacturers making up the rest. Reporting peaked in 2019 at $49,344 and has fallen 99.6% since, to $179 in 2025. Among neurology clinicians in CA 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 176 payments — averaging $600.82 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Biogen$68K
- EMD Serono, Inc.$18K
- Mallinckrodt Enterprises LLC$7K
- Genentech USA, Inc.$5K
- Bristol Myers Squibb$5K
- Mallinckrodt Hospital Products Inc.$2K
- plus $2K from 3 others
What the payments were for
- Consulting fees$20,62620%
- Speaking & faculty fees$74,43570%
- Travel & lodging$7,5397%
- Food & beverage$2,9773%
- Education$1670%
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 | 96 | $67,735 |
| EMD Serono, Inc. | 40 | $17,675 |
| Mallinckrodt Enterprises LLC | 6 | $6,892 |
| Genentech USA, Inc. | 6 | $4,929 |
| Bristol Myers Squibb | 10 | $4,817 |
| Mallinckrodt Hospital Products Inc. | 1 | $2,100 |
| Janssen Global Services, LLC | 1 | $1,020 |
| Genentech, Inc. | 15 | $554 |
| Amgen | 1 | $20 |
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
$105,743 in reported general payments places this provider in the 95th percentile of 1,996 neurology providers in California.
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 | 14 | $156 |
| Donepezil Hcl OdtDonepezil Hcl | 11 | $134 |
| Donepezil Hcl | 20 | $93 |
| Gabapentin | 15 | $70 |
Paid to pharmacies, not to this prescriber.
Other neurology in Thousand Oaks
- Andrew BlumenfeldCarlsbad$4.9M
- Khashayar DashtipourLoma Linda$3.3M
- Regina BerkovichWest Hollywood$3M
- Daniel BandariNewport Beach$2.6M
- Perry ShiehLos Angeles$2.4M
- Sandeep ThakkarIrvine$2M
- David LiebeskindLos Angeles$1.9M
- Jack SchimCarlsbad$1.7M
- Parshaw DorrizMission Viejo$1.5M
- Benjamin FrishbergCarlsbad$1.2M
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.