Anthony Chang, MD
Anatomic Pathology & Clinical Pathology · Burr Ridge, ILNPI 1407908825
Payments from drug & device makers
Across 662 payments — averaging $802.17 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AstraZeneca$393K
- Otsuka America Pharmaceutical, Inc.$47K
- Apellis Pharmaceuticals, Inc.$33K
- Novartis$22K
- GSK$15K
- Calliditas Therapeutics US Inc.$7K
- plus $15K from 8 others
Across 1 payment — averaging $7228.33 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- Novartis$7K
What the payments were for
- Consulting fees$106,32620%
- Speaking & faculty fees$359,64268%
- Travel & lodging$49,1029%
- Food & beverage$15,9143%
- Education$500%
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 |
|---|---|---|
| AstraZeneca | 511 | $392,636 |
| Otsuka America Pharmaceutical, Inc. | 39 | $47,308 |
| Apellis Pharmaceuticals, Inc. | 30 | $32,795 |
| Novartis | 24 | $21,818 |
| GSK | 23 | $14,604 |
| Calliditas Therapeutics US Inc. | 1 | $7,149 |
| Amgen | 7 | $4,481 |
| Otsuka Pharmaceutical Development & Commercialization, Inc. | 4 | $3,047 |
| Amicus Therapeutics, Inc. | 2 | $2,621 |
| Genentech USA, Inc. | 2 | $2,128 |
| Travere Therapeutics, Inc. | 11 | $1,444 |
| Mallinckrodt Hospital Products Inc. | 4 | $508 |
| Aurinia Pharma U.S., Inc. | 3 | $374 |
| ANI Pharmaceuticals, Inc. | 1 | $121 |
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
$531,034 in reported general payments places this provider in the 95th percentile of 331 anatomic pathology & clinical pathology providers in Illinois.
See all anatomic pathology & clinical pathology 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.
Other anatomic pathology & clinical pathology in Burr Ridge
- Dino ValleraHinsdale$4.4M
- Frank PikulBelleville$498K
- Ivana GolubovichMcHenry$421K
- Iffat ChoudhryMelrose Park$170K
- Karl NapekoskiNaperville$131K
- Jeffrey MuellerChicago$71K
- Unknown Amandeep KaurEvanston$66K
- Lindsay AlpertChicago$57K
- Melanie FoxEvanston$38K
- Daniel ArberChicago$37K
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.