Amanda Diffin, PA
Physician Assistant · Leominster, MANPI 1710547385
Payments from drug & device makers
Across 57 payments — averaging $20.09 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AbbVie$111
- Corium, LLC$108
- Lilly USA, LLC$78
- GSK$76
- Exact Sciences$75
- Exeltis, USA Inc.$67
- plus $630 from 18 others
What the payments were for
- Food & beverage$1,145100%
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 |
|---|---|---|
| AbbVie | 6 | $111 |
| Corium, LLC | 10 | $108 |
| Lilly USA, LLC | 4 | $78 |
| GSK | 3 | $76 |
| Exact Sciences | 4 | $75 |
| Exeltis, USA Inc. | 3 | $67 |
| Novo Nordisk | 3 | $66 |
| Pfizer | 3 | $63 |
| Astellas Pharma US Inc | 2 | $59 |
| Johnson & Johnson | 2 | $54 |
| Axsome Therapeutics, Inc. | 2 | $51 |
| Hologic Sales And Service, LLC | 2 | $50 |
| Kaleo, Inc. | 2 | $43 |
| Madrigal Pharmaceuticals | 1 | $38 |
| ITI, Inc. (d/b/a Intra-cellular Therapies, Inc.) | 1 | $30 |
| Biomarin Pharmaceutical Inc. | 1 | $23 |
| Mayne Pharma Commercial LLC | 1 | $22 |
| Alk-abello, Inc | 1 | $21 |
| AstraZeneca | 1 | $20 |
| Inspire Medical Systems, Inc. | 1 | $19 |
| Organon | 1 | $19 |
| Lundbeck LLC | 1 | $18 |
| Merck | 1 | $17 |
| Phadia US Inc. | 1 | $16 |
How this compares
$1,145 in reported general payments places this provider in the 85th percentile of 3,507 physician assistant 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.
Other physician assistant in Leominster
- Christopher MasseyWilbraham$190K
- Lizabeth O ConnorEverett$182K
- Kimberly ComeauSwampscott$120K
- Stacey PanasciSpringfield$113K
- Jason RandWaltham$99K
- Karen ChunEast Boston$70K
- David PeckhamQuincy$61K
- Leslie SmithSpringfield$49K
- Andrea MilliganBoston$46K
- Lauren RousseauBoston$42K
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.