Marissa Harris, NP
Nurse Practitioner · Ann Arbor, MINPI 1508363961
Payments from drug & device makers
Across 425 payments — averaging $18.25 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Novo Nordisk$1K
- AbbVie$812
- Johnson & Johnson$692
- Amgen$667
- Lilly USA, LLC$609
- Bayer$577
- plus $3K from 31 others
What the payments were for
- Food & beverage$7,58398%
- Education$1752%
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 |
|---|---|---|
| Novo Nordisk | 64 | $1,042 |
| AbbVie | 52 | $812 |
| Johnson & Johnson(2 entities) | 30 | $692 |
| Amgen | 35 | $667 |
| Lilly USA, LLC | 39 | $609 |
| Bayer | 28 | $577 |
| Boehringer Ingelheim | 32 | $568 |
| GSK | 28 | $394 |
| AstraZeneca | 20 | $354 |
| Pfizer | 20 | $330 |
| Astellas Pharma US Inc | 8 | $300 |
| Dexcom, Inc. | 12 | $276 |
| Novartis | 10 | $170 |
| Exact Sciences | 8 | $142 |
| IBSA Pharma Inc. | 3 | $118 |
| Idorsia Pharmaceuticals US Inc | 5 | $108 |
| Cequr Corporation | 1 | $72 |
| Esperion Therapeutics, Inc. | 3 | $64 |
| Eisai Inc. | 4 | $62 |
| Lundbeck LLC | 2 | $56 |
| Takeda Pharmaceuticals U.S.A., Inc. | 3 | $41 |
| ITI, Inc. (d/b/a Intra-cellular Therapies, Inc.) | 2 | $39 |
| Phathom Pharmaceuticals, Inc. | 2 | $32 |
| UCB, Inc. | 1 | $23 |
| Abbott | 1 | $19 |
| Genentech USA, Inc. | 1 | $19 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 1 | $18 |
| Ardelyx, Inc. | 1 | $18 |
| Shield Therapeutics Inc | 1 | $17 |
| Biohaven Pharmaceuticals, Inc. | 1 | $17 |
| Amarin Pharma, Inc. | 1 | $17 |
| Almatica Pharma LLC | 1 | $16 |
| Aimmune Therapeutics, Inc. | 1 | $14 |
| Teva Pharmaceuticals USA, Inc. | 1 | $14 |
| Mannkind Corporation | 1 | $13 |
| Alnylam Pharmaceuticals Inc. | 1 | $13 |
| Biohaven Pharmaceutical Holding Company Ltd. | 1 | $13 |
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.
How this compares
$7,758 in reported general payments places this provider in the 95th percentile of 3,351 nurse practitioner providers in Michigan.
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 Ann Arbor
- Elizabeth KirshnerAnn Arbor$119K
- Susanne Mc DevittAnn Arbor$23K
- Jennifer DubnickiAnn Arbor$19K
- Ashley KliszAnn Arbor$19K
- Caitlin BoyakAnn Arbor$14K
- Rebecca PriebeAnn Arbor$13K
- Tara WilliamsonAnn Arbor$13K
- Kimberly DimariaAnn Arbor$12K
- Christopher NaismithAnn Arbor$10K
- Diane BohnAnn Arbor$8K
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.