William Davis
Nurse Practitioner · Paw Paw, MINPI 1659581270
Payments from drug & device makers
Across 178 payments — averaging $26.28 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- ITI, Inc. (d/b/a Intra-cellular Therapies, Inc.)$1K
- Alkermes, Inc.$667
- Supernus Pharmaceuticals, Inc.$452
- E.r. Squibb & Sons, L.L.C.$403
- Neurocrine Biosciences, Inc.$323
- AbbVie$308
- plus $1K from 9 others
What the payments were for
- Food & beverage$4,53997%
- Education$1393%
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 |
|---|---|---|
| ITI, Inc. (d/b/a Intra-cellular Therapies, Inc.) | 42 | $1,268 |
| Alkermes, Inc. | 35 | $667 |
| Supernus Pharmaceuticals, Inc. | 19 | $452 |
| E.r. Squibb & Sons, L.L.C. | 7 | $403 |
| Neurocrine Biosciences, Inc. | 11 | $323 |
| AbbVie | 20 | $308 |
| Axsome Therapeutics, Inc. | 4 | $297 |
| Otsuka America Pharmaceutical, Inc. | 12 | $276 |
| Sunovion Pharmaceuticals Inc. | 15 | $266 |
| Corium, LLC | 5 | $192 |
| Johnson & Johnson | 2 | $100 |
| Teva Pharmaceuticals USA, Inc. | 2 | $54 |
| Vanda Pharmaceuticals Inc. | 2 | $34 |
| Lundbeck LLC | 1 | $20 |
| Takeda Pharmaceuticals U.S.A., Inc. | 1 | $19 |
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
$4,678 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.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| IngrezzaValbenazine Tosylate | 18 | $165,356 |
| VraylarCariprazine Hcl | 107 | $154,736 |
| RexultiBrexpiprazole | 56 | $94,409 |
| Invega TrinzaPaliperidone Palmitate | 12 | $92,048 |
| CaplytaLumateperone Tosylate | 55 | $91,808 |
| Lurasidone Hcl | 135 | $48,436 |
| TrintellixVortioxetine Hydrobromide | 53 | $44,475 |
| FetzimaLevomilnacipran Hcl | 30 | $25,305 |
| AuvelityDextromethorphan Hbr/Bupropion | 16 | $17,367 |
| Desvenlafaxine Succinate ErDesvenlafaxine Succinate | 140 | $9,970 |
| Aripiprazole | 182 | $7,922 |
| Oxcarbazepine | 90 | $6,332 |
| Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine | 157 | $6,314 |
| BelsomraSuvorexant | 11 | $6,232 |
| Paliperidone ErPaliperidone | 37 | $5,304 |
Paid to pharmacies, not to this prescriber.
Companies that both paid and supply prescribed drugs
These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.
| Company | Paid to this provider | Part D cost of their drugs |
|---|---|---|
| AbbVieVraylar, Fetzima | $308 | $180,041137 claims |
| Neurocrine Biosciences, Inc.Ingrezza | $323 | $165,35618 claims |
| Otsuka America Pharmaceutical, Inc.Rexulti | $276 | $94,40956 claims |
| Johnson & JohnsonInvega Trinza | $100 | $92,04812 claims |
| ITI, Inc. (d/b/a Intra-cellular Therapies, Inc.)Caplyta | $1,268 | $91,80855 claims |
| Takeda Pharmaceuticals U.S.A., Inc.Trintellix | $19 | $44,47553 claims |
| Axsome Therapeutics, Inc.Auvelity | $297 | $17,36716 claims |
Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 95th percentile of 3,351 nurse practitioner providers in Michigan.
Other nurse practitioner in Paw Paw
- Davida KrugerDetroit$1.8M
- Kari HillSpring Lake$426K
- Kyle FarrPlymouth$243K
- Linda SpencerTroy$217K
- Ellen DillardDetroit$168K
- Golbon AghamohammadiDetroit$157K
- Abubakir BabanDearborn$143K
- Elizabeth KirshnerAnn Arbor$119K
- Lisa Astalos ChismWoodhaven$103K
- Martha GoetzPetoskey$101K
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.