Medical Doctor Program year 2025 Reported 2019–2025 Source: CMS Open Payments, 2026 publication

An-Yu Chen

Gastroenterology Lexington, KY Medical Doctor

NPI 1992731269 CMS profile 90112

1225 S.Broadway, Suite 201, Lexington, KY 40504

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General payments

$25,142

1,178 records reported · program years 2019–2025

Research payments

$0

Paid to them · None reported · program years 2019–2025

Ownership & investment interest

$0

None reported

Through program year 2025, An-Yu Chen of Lexington, KY is reported in the CMS Open Payments database as having received $25,142 across 1,178 general payments and $0 in research payments paid to them.

No combined total General, research and ownership are kept apart. Each is reported under its own rules, and ownership is not money that moved at all but the value of a stake held. A meal, a clinical trial grant and a shareholding do not add up to anything meaningful, so this site does not add them.

General payments for this record sit in the 90th percentile of Gastroenterology profiles with reported payments. Percentile describes the distribution, not the conduct.

By program year

7 rows
Year Kind Relative to this record's peak year Amount Records
2025 General $5,203 203
2024 General $5,310 181
2023 General $3,168 143
2022 General $4,044 189
2021 General $2,765 174
2020 General $1,934 125
2019 General $2,718 163

Beside peers

Year by year, beside peers General payments · among profiles paid that year
  • An-Yu Chen
  • Gastroenterology median
  • Middle half of Gastroenterology
  • National median

In program year 2025, general payments to An-Yu Chen were reported at $5,203. Among 13,050 Gastroenterology profiles paid that year, the median was $639 and the middle half received between $167 and $1,700.

Show as a table
Year An-Yu Chen Gastroenterology median Middle half National median
2019 $2,718 $417 $126–$1,100 $163
2020 $1,934 $224 $74–$624 $114
2021 $2,765 $352 $106–$1,054 $132
2022 $4,044 $448 $129–$1,270 $149
2023 $3,168 $533 $150–$1,390 $160
2024 $5,310 $605 $160–$1,606 $164
2025 $5,203 $639 $167–$1,700 $169

Breakdown

Who paid General payments · program years 2019–2025
  1. AbbVie, Inc. $6,521 266 payments
  2. Salix Pharmaceuticals, a division of Bausch Health US, LLC $3,049 194 payments
  3. Janssen Biotech, Inc. $2,254 126 payments
  4. Takeda Pharmaceuticals U.S.A., Inc. $1,630 89 payments
  5. Ardelyx, Inc. $1,467 22 payments
  6. Gilead Sciences, Inc. $1,191 61 payments
  7. Pfizer Inc. $890 50 payments
  8. Phathom Pharmaceuticals, Inc. $701 27 payments
  9. QOL Medical, LLC $700 37 payments
  10. Ironwood Pharmaceuticals, Inc $538 35 payments
  11. Other $6,202 271 payments

Every payment, record by record

What the payments were for General payments · program years 2019–2025
  1. Food and Beverage $24,035 1,175 payments
  2. Consulting Fee $1,000 1 payment
  3. Education $108 2 payments
Products named General payments · program years 2019–2025
  1. XIFAXAN $2,342 145 payments
  2. RINVOQ $1,795 69 payments
  3. STELARA $1,503 88 payments
  4. IBSRELA $1,467 22 payments
  5. SKYRIZI $1,450 53 payments
  6. CREON $1,379 66 payments
  7. LINZESS $1,237 63 payments
  8. ENTYVIO $1,056 50 payments
  9. TREMFYA $1,024 41 payments
  10. XELJANZ $851 48 payments
  11. Other $13,773 699 payments

A payment can name more than one product, so these amounts overlap and do not add up to the general-payment figure.

Prescribing to Medicare patients

Part D · data year 2024 · 31 drugs

Part D claims

1,396

Median for Gastroenterology: 569

Drug cost

$253,881

Median for Gastroenterology: $104,976

Branded share of claims

63.2%

Median for Gastroenterology: 31.8%

Drugs this doctor was counted under in Medicare Part D 2024, by drug cost
Drug Type Relative to their largest Claims Drug cost
Humira(Cf) Pen Adalimumab Brand 11 $74,930
Alosetron Hcl Generic 26 $38,668
Linzess Linaclotide Brand 49 $36,867
Budesonide Er Budesonide Brand 25 $33,386
Movantik Naloxegol Oxalate Brand 16 $9,689
Colestipol Hcl Generic 70 $8,750
Sod Sulf-Potass Sulf-Mag Sulf Sodium, Potassium,mag Sulfates Brand 110 $7,863
Gavilyte-G Peg3350/Sod Sulf,bicarb,cl/Kcl Brand 430 $6,947
Mesalamine Generic 17 $5,882
Budesonide Dr Budesonide Brand 35 $4,338

The 10 drugs with the highest cost, of 31 counted.

Drug cost is what was paid for the drugs at the pharmacy — by Medicare, the patient and others — and is not money to the prescriber. Medicare Part D only: drugs dispensed to Medicare beneficiaries. A drug with fewer than 11 claims for this prescriber is not published, so a missing drug does not mean zero. The medians are for the 14,294 Part D prescribers listed as Gastroenterology; they describe a distribution and say nothing about conduct.

Billing to Medicare

Part B · data year 2024 · 28 billing codes

Paid by Medicare

$106,407

Medicare's payments for the services billed

Medicare patients

547

Average age 73

Services billed

1,354

310 women, 237 men among their patients

Share of this provider's Medicare patients with each condition
Condition among their Medicare patients Relative to the most common Share of patients
High blood pressure 73%
Arthritis 47%
Diabetes 26%
Chronic kidney disease 23%
Ischemic heart disease 21%
Depression 21%
Atrial fibrillation 14%
Cancer 14%

Medicare Part B only: services billed to Medicare. Rows covering fewer than 11 beneficiaries are not published. Only drugs given in the clinic are itemised here; the rest of what this provider billed is in the total above.

Payments and prescribing

First 5 of 29 products · payments 2024

Two separate records. The payments come from Open Payments and the claims from Medicare. They are set side by side because they name the same product; they do not show that a payment affected a prescription.

Products this doctor was paid in connection with in 2024, beside Medicare claims for the same product
Product Paid by Related payments Part D claims Part B services
IBSRELA
$1,017 — —
VOQUEZNA
$464 — —
SKYRIZI
$458 — —
RINVOQ
$327 — —
STELARA
$273 — —

A dash means Medicare published no figure for this doctor and product — fewer than 11 claims, or the product is not covered under that part — which is not the same as none. Payments are general payments only; one that names several products is split evenly between them, so an amount is payments related to the product, not money paid for it.

See more in the dashboard: 25 with a free account, all 29 with Patron

Records

1,178 reported

Every payment, record by record

Date, company, amount, what it was for and the product named — filter by year, kind and company, or download as CSV.

Other Gastroenterology in Kentucky

Related records

What this means

U.S. law requires drug and medical device manufacturers to report payments and transfers of value they make to physicians and teaching hospitals. The Centers for Medicare & Medicaid Services publishes that record each year. This page shows what was reported about this person, and nothing else.

An ownership interest is different from the other two. It is not a payment: it is a stake — shares, options, a partnership holding — that a physician or an immediate family member held in a manufacturer during that year. The figure shown is what the stake was reported to be worth.

Research payments frequently pass through a clinician to the institution running a trial, and rarely represent personal income. They should be read differently from general payments.

Provenance

Source: CMS Open Payments · through program year 2025

Data current to program year 2025, from CMS's 2026 publication.

We reproduce what manufacturers reported. We do not verify, edit or correct the underlying records.

A payment record is not evidence of wrongdoing. Financial relationships between industry and medicine are legal, common and often necessary for research. Who Paid My Doc reports what was disclosed; it does not judge it.

Who Paid My Doc is independent and is not affiliated with, endorsed by or sponsored by CMS or any U.S. government agency. It is not a consumer reporting agency and this is not a consumer report; do not use it for decisions covered by the Fair Credit Reporting Act.

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