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

Wei An

Allergy & Immunology West Hartford, CT Medical Doctor

NPI 1942576947 CMS profile 2790607

836 Farmington Ave Ste 207, Ste 210, West Hartford, CT 06119

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General payments

$4,195

198 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, Wei An of West Hartford, CT is reported in the CMS Open Payments database as having received $4,195 across 198 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 54th percentile of Allergy & Immunology profiles with reported payments. Percentile describes the distribution, not the conduct.

By program year

6 rows
Year Kind Relative to this record's peak year Amount Records
2025 General $2,341 107
2024 General $1,195 66
2023 General $460 10
2021 General $125 11
2020 General $39 2
2019 General $36 2

Beside peers

Year by year, beside peers General payments · among profiles paid that year
  • Wei An
  • Allergy & Immunology median
  • Middle half of Allergy & Immunology
  • National median

In program year 2025, general payments to Wei An were reported at $2,341. Among 2,466 Allergy & Immunology profiles paid that year, the median was $1,140 and the middle half received between $272 and $2,892.

Show as a table
Year Wei An Allergy & Immunology median Middle half National median
2019 $36 $594 $163–$1,512 $163
2020 $39 $426 $106–$1,233 $114
2021 $125 $638 $157–$1,708 $132
2022 $0 $790 $205–$1,961 $149
2023 $460 $852 $220–$2,147 $160
2024 $1,195 $865 $203–$2,267 $164
2025 $2,341 $1,140 $272–$2,892 $169

Breakdown

Who paid General payments · program years 2019–2025
  1. GlaxoSmithKline, LLC. $1,226 81 payments
  2. AstraZeneca Pharmaceuticals LP $698 29 payments
  3. LEO Pharma Inc. $475 16 payments
  4. Genzyme Corporation $395 7 payments
  5. CSL Behring $323 18 payments
  6. Novartis Pharmaceuticals Corporation $230 10 payments
  7. Takeda Pharmaceuticals U.S.A., Inc. $213 9 payments
  8. Lilly USA, LLC $108 4 payments
  9. Genentech USA, Inc. $100 5 payments
  10. Verona Pharma, Inc. $83 3 payments
  11. Other $345 16 payments

Every payment, record by record

What the payments were for General payments · program years 2019–2025
  1. Food and Beverage $4,104 188 payments
  2. Education $91 10 payments
Products named General payments · program years 2019–2025
  1. NUCALA $850 55 payments
  2. DUPIXENT $540 8 payments
  3. ADBRY $447 15 payments
  4. TRELEGY ELLIPTA $331 23 payments
  5. Haegarda $206 14 payments
  6. AIRSUPRA $186 9 payments
  7. TEZSPIRE $186 4 payments
  8. FASENRA $170 8 payments
  9. BREZTRI $156 8 payments
  10. EBGLYSS $108 4 payments
  11. Other $1,113 49 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 · 27 drugs

Part D claims

1,367

Median for Allergy/ Immunology: 449

Drug cost

$967,029

Median for Allergy/ Immunology: $169,700

Branded share of claims

54.4%

Median for Allergy/ Immunology: 37.3%

Drugs this doctor was counted under in Medicare Part D 2024, by drug cost
Drug Type Relative to their largest Claims Drug cost
Xolair Omalizumab Brand 102 $333,901
Dupixent Pen Dupilumab Brand 39 $152,300
Rinvoq Upadacitinib Brand 13 $151,149
Trelegy Ellipta Fluticasone/Umeclidin/Vilanter Brand 119 $126,965
Dupixent Syringe Dupilumab Brand 12 $52,389
Breo Ellipta Fluticasone/Vilanterol Brand 48 $38,725
Spiriva Respimat Tiotropium Bromide Brand 37 $28,861
Breztri Aerosphere Budesonide/Glycopyr/Formoterol Brand 20 $20,146
Symbicort Budesonide/Formoterol Fumarate Brand 46 $17,035
Azelastine-Fluticasone Azelastine/Fluticasone Brand 76 $9,751

The 10 drugs with the highest cost, of 27 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 3,579 Part D prescribers listed as Allergy/ Immunology; they describe a distribution and say nothing about conduct.

Billing to Medicare

Part B · data year 2024 · 21 billing codes

Paid by Medicare

$39,923

Medicare's payments for the services billed

Medicare patients

168

Average age 71

Services billed

3,710

110 women, 58 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 60%
Arthritis 52%
Ischemic heart disease 24%
Depression 20%
Osteoporosis 19%
Diabetes 17%
Chronic kidney disease 16%
COPD 15%

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 13 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
NUCALA
  • GlaxoSmithKline, LLC. $254
$254 — —
ADBRY
  • LEO Pharma Inc. $237
$237 — —
BREZTRI
  • AstraZeneca Pharmaceuticals LP $138
$138 20 —
XOLAIR
  • Novartis Pharmaceuticals Corporation $67
  • Genentech USA, Inc. $47
$114 102 —
FASENRA
  • AstraZeneca Pharmaceuticals LP $108
$108 — —

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 all 13 in the dashboard with a free account

Records

198 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 Allergy & Immunology in Connecticut

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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