Joshua Nnanji
Psychiatry · Mason, MINPI 1821291550
Payments from drug & device makers
Across 337 payments — averaging $13.73 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Johnson & Johnson$704
- Otsuka America Pharmaceutical, Inc.$539
- AbbVie$533
- Teva Pharmaceuticals USA, Inc.$528
- Alkermes, Inc.$493
- Lundbeck LLC$449
- plus $1K from 10 others
What the payments were for
- Food & beverage$4,29993%
- Education$3277%
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 |
|---|---|---|
| Johnson & Johnson | 56 | $704 |
| Otsuka America Pharmaceutical, Inc. | 46 | $539 |
| AbbVie(2 entities) | 43 | $533 |
| Teva Pharmaceuticals USA, Inc. | 40 | $528 |
| Alkermes, Inc. | 31 | $493 |
| Lundbeck LLC | 37 | $449 |
| Neurocrine Biosciences, Inc. | 31 | $407 |
| Vanda Pharmaceuticals Inc. | 23 | $385 |
| ITI, Inc. (d/b/a Intra-cellular Therapies, Inc.) | 14 | $329 |
| Indivior Inc. | 5 | $78 |
| Avanir Pharmaceuticals, Inc. | 3 | $70 |
| Takeda Pharmaceuticals U.S.A., Inc. | 4 | $49 |
| Otsuka Pharmaceutical Development & Commercialization, Inc. | 1 | $18 |
| Harmony Biosciences LLC | 1 | $16 |
| Noven Therapeutics, LLC | 1 | $14 |
| Shire North American Group Inc | 1 | $13 |
How this compares
$4,625 in reported general payments places this provider in the 90th percentile of 1,166 psychiatry providers in Michigan.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Invega SustennaPaliperidone Palmitate | 12 | $30,725 |
| Divalproex Sodium ErDivalproex Sodium | 15 | $1,529 |
| Quetiapine Fumarate | 75 | $1,524 |
| Aripiprazole | 37 | $1,110 |
| Duloxetine Hcl | 19 | $916 |
| Bupropion XlBupropion Hcl | 35 | $893 |
| Ziprasidone Hcl | 15 | $814 |
| Benztropine Mesylate | 33 | $572 |
| Risperidone | 28 | $446 |
| Lorazepam | 31 | $407 |
| Trazodone Hcl | 46 | $396 |
| Prazosin Hcl | 26 | $356 |
| Clonazepam | 32 | $339 |
| Lamotrigine | 31 | $295 |
| Gabapentin | 20 | $285 |
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 |
|---|---|---|
| Johnson & JohnsonInvega Sustenna | $704 | $30,72512 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 90th percentile of 1,166 psychiatry providers in Michigan.
Other psychiatry in Mason
- Andreas SidiropoulasDetroit$2.8M
- Joel YoungRochester Hills$1.9M
- Welton WashingtonYpsilanti$1.4M
- Rajaprabhakaran RajarethinamAnn Arbor$1.2M
- Eric AchtyesGrand Rapids$705K
- Manzar RajputMonroe$612K
- William GuySouthfield$562K
- Brian MickeyAnn Arbor$490K
- Sagar ParikhAnn Arbor$331K
- Robert LagrouClarkston$267K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.