Tristan Diaz
Nurse Practitioner · Cambridge, MANPI 1487127031
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 146 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. It is spread thinly across 25 manufacturers, the largest accounting for just 14.9% — the pattern of someone who eats at a lot of different presentations. Reporting peaked in 2021 at $1,431 and has fallen 98.0% since, to $29 in 2024. Among nurse practitioner clinicians in MA 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 146 payments — averaging $15.38 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- GSK$335
- AbbVie$293
- Novo Nordisk$209
- Amgen$185
- Salix Pharmaceuticals, A Division Of Bausch Health US, LLC$163
- Avanir Pharmaceuticals, Inc.$146
- plus $916 from 19 others
What the payments were for
- Food & beverage$2,246100%
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 |
|---|---|---|
| GSK | 24 | $335 |
| AbbVie | 18 | $293 |
| Novo Nordisk | 14 | $209 |
| Amgen | 14 | $185 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 11 | $163 |
| Avanir Pharmaceuticals, Inc. | 9 | $146 |
| Merck | 6 | $117 |
| Vanda Pharmaceuticals Inc. | 5 | $111 |
| Novartis | 6 | $89 |
| Biohaven Pharmaceuticals, Inc. | 5 | $83 |
| Lilly USA, LLC | 6 | $81 |
| Boehringer Ingelheim | 4 | $64 |
| Biohaven Pharmaceutical Holding Company Ltd. | 3 | $56 |
| Takeda Pharmaceuticals U.S.A., Inc. | 3 | $42 |
| Johnson & Johnson | 3 | $38 |
| Kowa Pharmaceuticals America, Inc. | 2 | $37 |
| Dexcom, Inc. | 2 | $32 |
| Bayer | 2 | $30 |
| Abiomed | 2 | $29 |
| AstraZeneca | 2 | $23 |
| Exeltis, USA Inc. | 1 | $21 |
| Sunovion Pharmaceuticals Inc. | 1 | $20 |
| Medtronic | 1 | $18 |
| Pfizer | 1 | $13 |
| Adlon Therapeutics L.p. | 1 | $11 |
How this compares
$2,246 in reported general payments places this provider in the 95th percentile of 3,855 nurse practitioner 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 nurse practitioner in Cambridge
- Haticha EisenbergCambridge$6K
- Lauri WelchNorth Chelmsford$110K
- Teresa FogarenBoston$102K
- Carolyn MetivierBoston$93K
- Deborah GearySalem$80K
- Amberly ChaplinWorcester$56K
- Darlene MadoreBrockton$42K
- Nancy SydowN Chelmsford$35K
- Miu Lai NgBoston$33K
- Victoria Garcia AlbeaStoneham$31K
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.