Abby Hornstein, MD
Blood Banking & Transfusion Medicine · Gardner, MANPI 1427048628
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 9 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 7 manufacturers reported payments, led by Merck at 45.9% of the total.
Across 9 payments — averaging $25.35 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Merck$105
- Tempus AI, Inc$42
- Meridian Bioscience Inc.$23
- Cepheid$17
- Roche Diagnostics Corporation$15
- Werfen USA LLC$14
- plus $11 from 1 others
What the payments were for
- Food & beverage$228100%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
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 | 1 | $105 |
| Tempus AI, Inc | 2 | $42 |
| Meridian Bioscience Inc. | 2 | $23 |
| Cepheid | 1 | $17 |
| Roche Diagnostics Corporation | 1 | $15 |
| Werfen USA LLC | 1 | $14 |
| Therapeuticsmd, Inc. | 1 | $11 |
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.
- KEYTRUDA$105
How this compares
Too few blood banking & transfusion medicine providers in Massachusettsto place this figure against a meaningful peer group, so we don't.
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 blood banking & transfusion medicine in Gardner
- Mark PopovskyBraintree$593K
- Carlo BrugnaraBoston$220K
- Sean StowellBoston$28K
- Richard M KaufmanBoston$24K
- Yanhua LiWorcester$2K
- Li ChaiBoston$511
- Hirotomo NakaharaBoston$225
- William SavageBoston$118
- Karen QuillenBoston$99
- Vishesh ChhibberWorcester$65
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.