Healthcare provider profile · identity verified

Michael V Chiorean, MD

Allopathic & Osteopathic Physicians|Internal Medicine|Gastroenterology · ISSAQUAH, WA · NPI 1578527099

Profile state: payments and partd Open Payments: 2025 Medicare Part D: 2024 Last identity check: 2026-08-10 Page data build: 2026-08-12

Verified facts

What the public records show

CMS Open Payments records show Michael V Chiorean, MD received $279,277.98 in general payments during 2025 across 268 reported records.

ABBVIE INC. accounted for 38.0% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 19 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Stelara, Xeljanz.

ABBVIE INC. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported CREON as an associated drug or biological on 91561 records involving 20616 distinct recipient NPIs. Public Medicare Part D data also shows 18 claims for Creon by this doctor in 2024.

Janssen Biotech, Inc. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported STELARA as an associated drug or biological on 23706 records involving 7279 distinct recipient NPIs. Public Medicare Part D data also shows 28 claims for Stelara by this doctor in 2024.

Janssen Scientific Affairs, LLC reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported STELARA as an associated drug or biological on 233 records involving 190 distinct recipient NPIs. Public Medicare Part D data also shows 28 claims for Stelara by this doctor in 2024.

PFIZER INC. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported XELJANZ as an associated drug or biological on 32588 records involving 8614 distinct recipient NPIs. Public Medicare Part D data also shows 11 claims for Xeljanz by this doctor in 2024.

These records do not establish that a payment influenced prescribing or medical care.

Payment overview · 2025

General Payments

$279,277.98

268 reported records · 15 companies

Separate record types

Research & Ownership

Research Payments (direct recipient): not present in the loaded data

Associated Research Funding (for example, named PI): not present in the loaded data

Ownership / Investment: not present in the loaded data

These categories are never added into the General Payments headline. Associated research funding must not be described as money the doctor personally received unless the source record supports that conclusion.

Who paid this doctor?

Companies in 2025 General Payments

Reported companyCanonical companyAmountShareRecordsYear
ABBVIE INC. Unresolved — no canonical attribution shown $106,054.5838.0%832025
Lilly USA, LLC Unresolved — no canonical attribution shown $68,662.3424.6%732025
Janssen Biotech, Inc. Unresolved — no canonical attribution shown $43,861.5515.7%392025
PFIZER INC. Unresolved — no canonical attribution shown $28,189.8910.1%282025
Takeda Pharmaceuticals U.S.A., Inc. Unresolved — no canonical attribution shown $12,539.054.5%212025
Celltrion USA Inc. Unresolved — no canonical attribution shown $11,163.984.0%52025
Merck Sharp & Dohme LLC Unresolved — no canonical attribution shown $8,563.723.1%92025
Aimmune Therapeutics, Inc. Unresolved — no canonical attribution shown $45.930.0%22025
Organon LLC Unresolved — no canonical attribution shown $36.840.0%22025
Genentech USA, Inc. Unresolved — no canonical attribution shown $34.840.0%12025
Janssen Scientific Affairs, LLC Unresolved — no canonical attribution shown $31.280.0%12025
RECORDATI_RARE_DISEASES_INC. Unresolved — no canonical attribution shown $27.410.0%12025
Phathom Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $25.580.0%12025
Amgen Inc. Unresolved — no canonical attribution shown $21.040.0%12025
Novo Nordisk Inc Unresolved — no canonical attribution shown $19.950.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$207,706.0053
Travel and Lodging$28,419.2495
Consulting Fee$25,975.007
Honoraria$11,002.503
Food and Beverage$6,175.24110

A meal, consulting fee, royalty, and travel payment describe different kinds of reported relationships and should not be interpreted as equivalent.

Analysis 1 · Payment-linked products

Products named in Open Payments records

Reported productTypeReported companyRelated amount*RecordsYear
SKYRIZI
Normalized: skyrizi
Biological ABBVIE INC. $62,692.58 46 2025
Source payment records
OMVOH
Normalized: omvoh
Drug Lilly USA, LLC $61,788.81 58 2025
Source payment records
TREMFYA
Normalized: tremfya
Drug Janssen Biotech, Inc. $43,861.55 39 2025
Source payment records
RINVOQ
Normalized: rinvoq
Biological ABBVIE INC. $43,071.58 38 2025
Source payment records
VELSIPITY
Normalized: velsipity
Drug PFIZER INC. $28,172.60 27 2025
Source payment records
ENTYVIO
Normalized: entyvio
Biological Takeda Pharmaceuticals U.S.A., Inc. $12,539.05 21 2025
Source payment records
ZYMFENTRA
Normalized: zymfentra
Biological Celltrion USA Inc. $11,137.60 4 2025
Source payment records
SIMPONI ARIA
Normalized: simponi aria
Biological Janssen Biotech, Inc. $1,350.00 1 2025
Source payment records
STELARA
Normalized: stelara
Biological Janssen Biotech, Inc. $1,125.00 1 2025
Source payment records
XELJANZ
Normalized: xeljanz
Drug PFIZER INC. $76.52 4 2025
Source payment records
VOWST
Normalized: vowst
Biological Aimmune Therapeutics, Inc. $45.93 2 2025
Source payment records
Gazyva
Normalized: gazyva
Biological Genentech USA, Inc. $34.84 1 2025
Source payment records
SYLVANT
Normalized: sylvant
Drug RECORDATI_RARE_DISEASES_INC. $27.41 1 2025
Source payment records
VEGZELMA
Normalized: vegzelma
Biological Celltrion USA Inc. $26.38 1 2025
Source payment records
VOQUEZNA
Normalized: voquezna
Drug Phathom Pharmaceuticals, Inc. $25.58 1 2025
Source payment records
HADLIMA
Normalized: hadlima
Drug Organon LLC $25.14 1 2025
Source payment records
RENFLEXIS
Normalized: renflexis
Drug Organon LLC $25.14 1 2025
Source payment records
UPLIZNA
Normalized: uplizna
Biological Amgen Inc. $21.04 1 2025
Source payment records
Wegovy
Normalized: wegovy
Drug Novo Nordisk Inc $19.95 1 2025
Source payment records

* Product-associated amounts are non-additive because one payment record may name more than one product.

These products were named on specific Open Payments records. A named product does not show that the payment influenced treatment or prescribing.

Public prescribing for products named in payments

Open Payments productPayment yearPart D brandPart D yearClaimsMatch methodSource
STELARA
stelara
2025 Stelara 2024 28
Beneficiary count suppressed
exact normalized Medicare Part D
XELJANZ
xeljanz
2025 Xeljanz 2024 11
Beneficiary count suppressed
exact normalized Medicare Part D

The presence of the same drug in both datasets does not show that a payment caused or influenced a prescription.

Analysis 2 · Same-company prescribing overlap

Drugs reported in other payments from the same company that also appear in Medicare Part D

This analysis is independent from products named on this doctor’s individual payment records. A row appears only when the exact Open Payments reporting entity paid this doctor, that same reporting entity reported the drug or biological on at least 10 loaded General Payment records involving at least 2 distinct recipient NPIs, and this doctor has the same non-generic brand in public Part D data. This does not mean the company owns or manufactures the drug.

Paying companyPayment yearDrug reported by same entityOpen Payments evidencePart DClaimsBeneficiaries
ABBVIE INC.
Exact reporting entity; no affiliate inference
2025 CREON
open payments reported associated product
CMS Open Payments — General Payments
91561 supporting records · 20616 recipient NPIs · example record 1201352608
Creon · 2024
Exact normalized brand match · 1 Part D row
18 suppressed by CMS
Janssen Biotech, Inc.
Exact reporting entity; no affiliate inference
2025 STELARA
open payments reported associated product
CMS Open Payments — General Payments
23706 supporting records · 7279 recipient NPIs · example record 1174257377
Stelara · 2024
Exact normalized brand match · 1 Part D row
28 suppressed by CMS
Janssen Scientific Affairs, LLC
Exact reporting entity; no affiliate inference
2025 STELARA
open payments reported associated product
CMS Open Payments — General Payments
233 supporting records · 190 recipient NPIs · example record 1174148007
Stelara · 2024
Exact normalized brand match · 1 Part D row
28 suppressed by CMS
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 XELJANZ
open payments reported associated product
CMS Open Payments — General Payments
32588 supporting records · 8614 recipient NPIs · example record 1228794176
Xeljanz · 2024
Exact normalized brand match · 1 Part D row
11 suppressed by CMS

These facts do not show that a payment was for the drug, that the company owns or manufactures the drug, or that a payment caused or influenced prescribing.

Public Medicare Part D data

Provider-and-drug rows loaded for 2024

BrandGenericClaimsBeneficiaries
Peg-3350 And ElectrolytesPeg3350/Sod Sulf,bicarb,cl/Kcl7270
Gavilyte-GPeg3350/Sod Sulf,bicarb,cl/Kcl7169
MesalamineMesalamine4711
OmeprazoleOmeprazole3417
Sod Sulf-Potass Sulf-Mag SulfSodium, Potassium,mag Sulfates2929
StelaraUstekinumab28suppressed
Peg 3350-ElectrolyteSodium Chloride/Nahco3/Kcl/Peg2727
Gavilyte-CPeg3350/Sod Sulf,bicarb,cl/Kcl2424
CreonLipase/Protease/Amylase18suppressed
AzathioprineAzathioprine14suppressed
MercaptopurineMercaptopurine14suppressed
Pantoprazole SodiumPantoprazole Sodium12suppressed
Imipramine HclImipramine Hcl11suppressed
XeljanzTofacitinib Citrate11suppressed

Timeline

Payment and prescribing data by year

Open Payments and Medicare Part D may refer to different years. They are shown separately rather than aligned as if they describe the same period.

YearGeneral PaymentsMain payerExplicit productsCompany overlapsPart D coverage
2025 $279,277.98 · 268 records ABBVIE INC. ENTYVIO, Gazyva, HADLIMA, OMVOH, RENFLEXIS, RINVOQ, SIMPONI ARIA, SKYRIZI, STELARA, SYLVANT, TREMFYA, UPLIZNA, VEGZELMA, VELSIPITY, VOQUEZNA, VOWST, Wegovy, XELJANZ, ZYMFENTRA 4
2024 Complete

Questions to ask

Questions you could discuss with your doctor

These are general questions generated from reviewed templates. They are not personalized medical advice.

Sources and limitations

How to read this page

Loaded source releases

DatasetYearPublicationSource
CMS Open Payments — General Payments 2025 2026-06-30 Original source
Medicare Part D Prescribers by Provider and Drug 2024 2026-05-06 Original source
NPPES Data Dissemination V2 current / reference data 2026-08-10 Original source

Methodology version: 2.1

Editorial template version: 2.4

Product contract version: 2.0

Schema version: 0.7.0

Page data build: 2026-08-12T23:34:59.370714+00:00

Publication policy: eligible for indexing after public-launch controls are enabled

Full methodology · Questions & answers · Report a possible error