Michael Chang, MD
Anatomic Pathology & Clinical Pathology · Gainesville, FLNPI 1427318336
Payments from drug & device makers
Across 15 payments — averaging $42.97 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Galderma Laboratories, L.p.$128
- Roche Diagnostics Corporation$87
- Stryker$81
- AstraZeneca$77
- Bristol Myers Squibb$50
- Lilly USA, LLC$49
- plus $172 from 6 others
What the payments were for
- Food & beverage$644100%
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 |
|---|---|---|
| Galderma Laboratories, L.p. | 1 | $128 |
| Roche Diagnostics Corporation | 1 | $87 |
| Stryker | 1 | $81 |
| AstraZeneca | 1 | $77 |
| Bristol Myers Squibb | 1 | $50 |
| Lilly USA, LLC | 2 | $49 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 2 | $48 |
| Takeda Pharmaceuticals U.S.A., Inc. | 2 | $44 |
| Madrigal Pharmaceuticals | 1 | $26 |
| Exact Sciences | 1 | $23 |
| Johnson & Johnson | 1 | $18 |
| Cordis US CORP. | 1 | $13 |
How this compares
$644 in reported general payments places this provider in the 80th percentile of 510 anatomic pathology & clinical pathology providers in Florida.
See all anatomic pathology & clinical pathology providers in Florida →
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 Gainesville
- Sharon HookGainesville$934K
- William HamiltonGainesville$491K
- Namrah AijazGainesville$71K
- Kenneth RandGainesville$33K
- Sherri FlaxGainesville$6K
- Sara FalzaranoGainesville$4K
- Joseph PelletierGainesville$2K
- Frederick KiechleHollywood$3.5M
- Gary ProcopMiami$1.6M
- Kirit PatelTampa$355K
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.