William David, MD
Neurology · Boston, MANPI 1750333605
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $39,450 of the $45,205 with a category attached, or 87.3%. Pfizer accounts for 87.3% of it on its own, with 3 other manufacturers making up the rest. Reporting peaked in 2021 at $26,200 and has fallen 88.2% since, to $3,100 in 2025. Among neurology clinicians in MA with any reported payments, this total sits in the top 10% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 39 payments — averaging $1159.11 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Pfizer$39K
- Natus Medical Incorporated$5K
- UCB, Inc.$1K
- Seqirus USA Inc$16
What the payments were for
- Consulting fees$39,45087%
- Speaking & faculty fees$4,68910%
- Food & beverage$1,0672%
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 |
|---|---|---|
| Pfizer | 22 | $39,450 |
| Natus Medical Incorporated | 1 | $4,689 |
| UCB, Inc. | 15 | $1,050 |
| Seqirus USA Inc | 1 | $16 |
How this compares
$45,205 in reported general payments places this provider in the 90th 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 |
|---|---|---|
| Radicava OrsEdaravone | 11 | $149,102 |
Paid to pharmacies, not to this prescriber.
Other neurology in Boston
- Christopher WrightBoston$2.5M
- Thomas ScammellBoston$617K
- Alfred SandrockBoston$490K
- Pushpa NarayanaswamiBoston$420K
- Roy FreemanBoston$390K
- Michael LevyBoston$387K
- Leeann BurtonBoston$325K
- Ilena GeorgeBoston$316K
- Andrew BudsonBoston$304K
- Denis BalabanBoston$297K
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.