Bonnie Balzer, MD
Clinical Pathology/Laboratory Medicine · San Francisco, CANPI 1649247602
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $1,513 of the $1,513 with a category attached, or 100.0%. Every reported general payment came from a single manufacturer, E.r. Squibb & Sons, L.L.C..
Across 1 payment — averaging $1512.50 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- E.r. Squibb & Sons, L.L.C.$2K
Across 1 payment — averaging $28,281 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.
- Bayer$28K
What the payments were for
- Consulting fees$1,513100%
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 |
|---|---|---|
| E.r. Squibb & Sons, L.L.C. | 1 | $1,513 |
How this compares
$1,513 in reported general payments places this provider in the 70th percentile of 58 clinical pathology/laboratory medicine providers in California.
See all clinical pathology/laboratory medicine 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.
Other clinical pathology/laboratory medicine in San Francisco
- Kwun WenSan Francisco$143K
- Michael BuschSan Francisco$24K
- Steven MillerSan Francisco$7K
- Jayanta DebnathSan Francisco$4K
- Ari MolofskySan Francisco$3K
- Anne DeucherSan Francisco$1K
- Elham KhanafsharSan Francisco$587
- David ParkSan Francisco$344
- Maria PatinoSan Francisco$297
- John MorettoSan Francisco$51
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.