David Spain, MD
Surgical Critical Care · Palo Alto, CANPI 1427190412
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $72,550 of the $116,652 with a category attached, or 62.2%. Merck accounts for 65.0% of it on its own, with 5 other manufacturers making up the rest. Reporting peaked in 2021 at $50,791 and has fallen 70.0% since, to $15,240 in 2025. Among surgical critical care 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 40 payments — averaging $2916.30 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Merck$76K
- Stryker$40K
- Medical Device Business Services, Inc.$305
- Teleflex LLC$187
- Covidien LP$176
- Johnson & Johnson$120
What the payments were for
- Consulting fees$72,55062%
- Travel & lodging$2,3192%
- Food & beverage$1,3871%
- Education$3050%
- Other$40,09134%
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 |
|---|---|---|
| Merck | 34 | $75,773 |
| Stryker | 1 | $40,091 |
| Medical Device Business Services, Inc. | 1 | $305 |
| Teleflex LLC | 2 | $187 |
| Covidien LP | 1 | $176 |
| Johnson & Johnson | 1 | $120 |
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.
- ProGrip$176
- Echelon Circular$120
- STRATAFIX$120
- SURGICEL NU-KNIT$120
- SURGIFLO Hemostatic Matrix$120
How this compares
$116,652 in reported general payments places this provider in the 95th percentile of 141 surgical critical care 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 |
|---|---|---|
| Ondansetron HclOndansetron Hcl/Pf | 13 | $52 |
Paid to pharmacies, not to this prescriber.
Other surgical critical care in Palo Alto
- Thomas WeiserPalo Alto$5K
- Aaron StrumwasserLynwood$200K
- Demetrios DemetriadesLos Angeles$192K
- Brian LugoPasadena$61K
- Matthew BloomSan Jose$42K
- Scott CunneenLos Angeles$35K
- Nicholas NissenLos Angeles$26K
- Alan PangFresno$22K
- Amy LiepertSan Diego$22K
- Daniel MarguliesLos Angeles$15K
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.