Healthcare provider profile · identity verified

William Chen, DO

Allopathic & Osteopathic Physicians|Family Medicine · FARMINGTON, NM · NPI 1720575871

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 William Chen, DO received $298.87 in general payments during 2025 across 16 reported records.

ABBVIE INC. accounted for 15.2% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 13 associated products.

GlaxoSmithKline, 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 TRELEGY ELLIPTA as an associated drug or biological on 131532 records involving 37148 distinct recipient NPIs. Public Medicare Part D data also shows 30 claims for Trelegy Ellipta by this doctor in 2024.

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

Payment overview · 2025

General Payments

$298.87

16 reported records · 11 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 $45.2915.2%32025
Otsuka America Pharmaceutical, Inc. Unresolved — no canonical attribution shown $34.4211.5%22025
Medtronic, Inc. Medtronic, Inc.
exact · evidence 2025-07-22
$31.1210.4%22025
Sage Therapeutics, LLC Unresolved — no canonical attribution shown $30.1510.1%22025
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) Unresolved — no canonical attribution shown $30.0710.1%12025
Insulet Corporation Unresolved — no canonical attribution shown $29.069.7%12025
Indivior Inc. Unresolved — no canonical attribution shown $29.059.7%12025
E.R. Squibb & Sons, L.L.C. Unresolved — no canonical attribution shown $19.256.4%12025
PFIZER INC. Unresolved — no canonical attribution shown $18.636.2%12025
Exact Sciences Corporation Unresolved — no canonical attribution shown $16.975.7%12025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $14.865.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$298.8716

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
MAVYRET
Normalized: mavyret
Drug ABBVIE INC. $45.29 3 2025
Source payment records
REXULTI
Normalized: rexulti
Drug Otsuka America Pharmaceutical, Inc. $34.42 2 2025
Source payment records
MINIMED 780G
Normalized: minimed 780g
Device Medtronic, Inc. $31.12 2 2025
Source payment records
ZURZUVAE
Normalized: zurzuvae
Drug Sage Therapeutics, LLC $30.15 2 2025
Source payment records
CAPLYTA
Normalized: caplyta
Drug ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $30.07 1 2025
Source payment records
Omnipod
Normalized: omnipod
Device Insulet Corporation $29.06 1 2025
Source payment records
SUBLOCADE
Normalized: sublocade
Drug Indivior Inc. $29.05 1 2025
Source payment records
COBENFY
Normalized: cobenfy
Drug E.R. Squibb & Sons, L.L.C. $19.25 1 2025
Source payment records
ABRYSVO
Normalized: abrysvo
Biological PFIZER INC. $18.63 1 2025
Source payment records
PENBRAYA
Normalized: penbraya
Biological PFIZER INC. $18.63 1 2025
Source payment records
PREVNAR 20
Normalized: prevnar 20
Biological PFIZER INC. $18.63 1 2025
Source payment records
Cologuard Collection Kit
Normalized: cologuard collection kit
Device Exact Sciences Corporation $16.97 1 2025
Source payment records
BEXSERO
Normalized: bexsero
Biological GlaxoSmithKline, LLC. $14.86 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

No exact normalized or approved-alias overlap was found in the loaded Part D year. This does not mean the doctor never prescribed the product.

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
GlaxoSmithKline, LLC.
Exact reporting entity; no affiliate inference
2025 TRELEGY ELLIPTA
open payments reported associated product
CMS Open Payments — General Payments
131532 supporting records · 37148 recipient NPIs · example record 1190332369
Trelegy Ellipta · 2024
Exact normalized brand match · 1 Part D row
30 18

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
MounjaroTirzepatide16246
Atorvastatin CalciumAtorvastatin Calcium14171
LisinoprilLisinopril11051
GabapentinGabapentin8639
Synjardy XrEmpagliflozin/Metformin Hcl8136
Losartan PotassiumLosartan Potassium7434
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide7033
OzempicSemaglutide6717
Metoprolol SuccinateMetoprolol Succinate6635
Levothyroxine SodiumLevothyroxine Sodium6529
Metformin Hcl ErMetformin Hcl6528
Albuterol Sulfate HfaAlbuterol Sulfate6223
Amlodipine BesylateAmlodipine Besylate6233
JardianceEmpagliflozin6231
OmeprazoleOmeprazole5523
Cyclobenzaprine HclCyclobenzaprine Hcl4930
Metformin HclMetformin Hcl3921
FamotidineFamotidine3618
Lantus SolostarInsulin Glargine,hum.Rec.Anlog3517
Tamsulosin HclTamsulosin Hcl3417
Combivent RespimatIpratropium/Albuterol Sulfate33suppressed
FurosemideFurosemide3213
Trelegy ElliptaFluticasone/Umeclidin/Vilanter3018
FluconazoleFluconazole2714
SimvastatinSimvastatin27suppressed
IbuprofenIbuprofen2617
AllopurinolAllopurinol25suppressed
Fluticasone PropionateFluticasone Propionate2414
Trazodone HclTrazodone Hcl2214
Hydroxyzine HclHydroxyzine Hcl21suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide21suppressed
Duloxetine HclDuloxetine Hcl20suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen20suppressed
Pantoprazole SodiumPantoprazole Sodium18suppressed
WegovySemaglutide17suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog15suppressed
Terbinafine HclTerbinafine Hcl1515
XareltoRivaroxaban15suppressed
CarvedilolCarvedilol14suppressed
GlipizideGlipizide14suppressed
PrednisonePrednisone14suppressed
BaclofenBaclofen13suppressed
Dicyclomine HclDicyclomine Hcl13suppressed
Oxybutynin ChlorideOxybutynin Chloride13suppressed
PregabalinPregabalin13suppressed
CelecoxibCelecoxib12suppressed
Metoprolol TartrateMetoprolol Tartrate12suppressed
Nifedipine ErNifedipine12suppressed
Quetiapine FumarateQuetiapine Fumarate12suppressed
Tizanidine HclTizanidine Hcl12suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol11suppressed
HydrochlorothiazideHydrochlorothiazide11suppressed
Montelukast SodiumMontelukast Sodium11suppressed

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 $298.87 · 16 records ABBVIE INC. ABRYSVO, BEXSERO, CAPLYTA, COBENFY, Cologuard Collection Kit, MAVYRET, MINIMED 780G, Omnipod, PENBRAYA, PREVNAR 20, REXULTI, SUBLOCADE, ZURZUVAE 1
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