Has Chang Liu, MD received payments from drug or device companies?

Yes. Drug and device makers reported $2,205 in general payments to Chang Liu, MD across 5 transactions between 2019–2025. Most Open Payments records nationally are meals worth under $20; a reported payment is not evidence of wrongdoing.

Does a payment mean Chang Liu, MD did something wrong?

No. Federal law requires drug and device makers to report almost every transfer of value to a physician, including a $14 sandwich at a lunch presentation. Consulting fees, research funding and royalties to device inventors are ordinary, legal parts of medicine. This site reports what was disclosed; it makes no allegation.

Where does this information about Chang Liu, MD come from?

The U.S. Centers for Medicare & Medicaid Services. Payments come from Open Payments, published under the Physician Payments Sunshine Act. Billing and prescribing figures come from the Medicare Physician & Other Practitioners and Part D Prescriber public use files for 2024.

Chang Liu, MD

Blood Banking & Transfusion Medicine · Saint Louis, MONPI 1124337340

Payments from drug & device makers

What this record shows

This record is dominated by travel and lodging: $1,339 of the $2,205 with a category attached, or 60.7%. One Lambda, Inc. accounts for 89.6% of it on its own, with 2 other manufacturers making up the rest. 2025 is the largest year on record at $2,018, more than ten times the $118 reported in 2022.

$2,205in general payments, 2019–2025

Across 5 payments — averaging $441.07 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

One Lambda, Inc.$2K
National Marrow Donor Program$118
Sanofi$110

$300,000in research payments, 2019–2025

Across 2 payments — averaging $150,000 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.

Mallinckrodt Enterprises LLC$150K
Mallinckrodt Hospital Products Inc.$150K

What the payments were for

Travel & lodging$1,33961%
Food & beverage$86739%

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
One Lambda, Inc.	2	$1,977
National Marrow Donor Program	1	$118
Sanofi	2	$110

How this compares

Too few blood banking & transfusion medicine providers in Missourito place this figure against a meaningful peer group, so we don't.

Medicare billing

Part B allowed, 2024

$8,459

Medicare patients

118

Services billed

145

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
Latanoprost	30	$163

Paid to pharmacies, not to this prescriber.

Other blood banking & transfusion medicine in Saint Louis

George DespotisSaint Louis$54K
Charles EbySaint Louis$31K
Brenda GrossmanSaint Louis$1K
Lisandro FortunySaint Louis$213
Christine FujaSaint Louis$149
Thomas SchneiderSaint Louis$49
Emily CoberlySaint Louis$46
Natalie MalvikSaint Louis$19
Jay MenitoveKansas City$464K
Rhonda CookeSt. Louis$241

See the full list for Missouri →

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.

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