John Wang, DO
Family Medicine · Springfield, ILNPI 1558511519
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $114,226 of the $114,329 with a category attached, or 99.9%. CSL Plasma Inc. accounts for 99.9% of it on its own, with 1 other manufacturer making up the rest. Reporting peaked in 2024 at $60,235 and has fallen 79.0% since, to $12,675 in 2025. Among family medicine clinicians in IL 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 154 payments — averaging $742.40 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- CSL Plasma Inc.$114K
- Grifols USA, LLC$104
What the payments were for
- Consulting fees$114,226100%
- Food & beverage$1040%
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 |
|---|---|---|
| CSL Plasma Inc. | 153 | $114,226 |
| Grifols USA, LLC | 1 | $104 |
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.
- HyperRAB SD$104
- HyperTET SD$104
How this compares
$114,329 in reported general payments places this provider in the 95th percentile of 4,116 family medicine providers in Illinois.
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 |
|---|---|---|
| Diclofenac Sodium | 45 | $510 |
| Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst | 34 | $344 |
| Ondansetron OdtOndansetron | 22 | $286 |
| Albuterol Sulfate HfaAlbuterol Sulfate | 11 | $262 |
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 24 | $146 |
| Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav | 22 | $145 |
| Cephalexin | 18 | $120 |
| Ondansetron Hcl | 13 | $106 |
| Methylprednisolone | 11 | $105 |
| Azithromycin | 17 | $49 |
| Tamsulosin Hcl | 11 | $49 |
| Prednisone | 26 | $35 |
Paid to pharmacies, not to this prescriber.
Other family medicine in Springfield
- Frank PhillipsChicago$1.6M
- Peter TothSterling$1.4M
- Bradley TorphyChicago$1.3M
- Jeffrey RoyceRockford$890K
- Anthony AuriemmaWestmont$788K
- Manfred ManGurnee$764K
- Barbara BellarOakbrook Terrace$599K
- Bernie RancheroAltamont$533K
- Sandy GibsonChicago$309K
- Mandy GittlerChicago$204K
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.