Healthcare provider profile · identity verified

Domingo Chardon, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine · PONCE, PR · NPI 1104898733

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 Domingo Chardon, M.D. received $2,986.48 in general payments during 2025 across 35 reported records.

Merck Sharp & Dohme LLC accounted for 60.0% of that reported general-payment amount.

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

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

Actelion Pharmaceuticals US, 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 OPSUMIT as an associated drug or biological on 18955 records involving 8899 distinct recipient NPIs. Public Medicare Part D data also shows 96 claims for Opsumit by this doctor in 2024.

AstraZeneca Pharmaceuticals LP reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported BEVESPI AEROSPHERE as an associated drug or biological on 763 records involving 473 distinct recipient NPIs. Public Medicare Part D data also shows 15 claims for Bevespi Aerosphere by this doctor in 2024.

AstraZeneca Pharmaceuticals LP reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported SYMBICORT as an associated drug or biological on 71 records involving 51 distinct recipient NPIs. Public Medicare Part D data also shows 74 claims for Symbicort by this doctor in 2024.

AstraZeneca Pharmaceuticals LP reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported TEZSPIRE as an associated drug or biological on 33983 records involving 10291 distinct recipient NPIs. Public Medicare Part D data also shows 11 claims for Tezspire by this doctor in 2024.

Boehringer Ingelheim Pharmaceuticals, 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 OFEV as an associated drug or biological on 14236 records involving 6873 distinct recipient NPIs. Public Medicare Part D data also shows 74 claims for Ofev by this doctor in 2024.

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 636 claims for Trelegy Ellipta by this doctor in 2024.

Merck Sharp & Dohme 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 Adempas as an associated drug or biological on 14 records involving 2 distinct recipient NPIs. Public Medicare Part D data also shows 112 claims for Adempas by this doctor in 2024.

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

Payment overview · 2025

General Payments

$2,986.48

35 reported records · 9 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
Merck Sharp & Dohme LLC Unresolved — no canonical attribution shown $1,791.6060.0%72025
JAZZ PHARMACEUTICALS INC. Unresolved — no canonical attribution shown $334.4611.2%62025
United Therapeutics Corporation Unresolved — no canonical attribution shown $206.026.9%92025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $205.366.9%22025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $177.255.9%42025
Actelion Pharmaceuticals US, Inc. Unresolved — no canonical attribution shown $99.953.4%12025
Janssen Pharmaceuticals, Inc Unresolved — no canonical attribution shown $78.582.6%32025
Lilly USA, LLC Unresolved — no canonical attribution shown $47.651.6%12025
Boehringer Ingelheim Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $45.611.5%22025

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$1,500.001
Food and Beverage$1,287.5332
Education$198.952

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
PNEUMOVAX 23
Normalized: pneumovax 23
Biological Merck Sharp & Dohme LLC $1,500.00 1 2025
Source payment records
XYWAV
Normalized: xywav
Drug JAZZ PHARMACEUTICALS INC. $334.46 6 2025
Source payment records
NUCALA
Normalized: nucala
Biological GlaxoSmithKline, LLC. $205.36 2 2025
Source payment records
WINREVAIR
Normalized: winrevair
Biological Merck Sharp & Dohme LLC $181.69 4 2025
Source payment records
FASENRA
Normalized: fasenra
Biological AstraZeneca Pharmaceuticals LP $171.40 3 2025
Source payment records
UPTRAVI
Normalized: uptravi
Drug Actelion Pharmaceuticals US, Inc., Janssen Pharmaceuticals, Inc $151.70 3 2025
Source payment records
Tyvaso
Normalized: tyvaso
Drug United Therapeutics Corporation $111.87 8 2025
Source payment records
OPSUMIT
Normalized: opsumit
Drug Actelion Pharmaceuticals US, Inc. $99.95 1 2025
Source payment records
CAPVAXIVE
Normalized: capvaxive
Biological Merck Sharp & Dohme LLC $82.99 3 2025
Source payment records
ZEPBOUND
Normalized: zepbound
Drug Lilly USA, LLC $47.65 1 2025
Source payment records
JASCAYD
Normalized: jascayd
Drug Boehringer Ingelheim Pharmaceuticals, Inc. $45.61 2 2025
Source payment records
OPSYNVI
Normalized: opsynvi
Drug Janssen Pharmaceuticals, Inc $26.83 1 2025
Source payment records
TEZSPIRE
Normalized: tezspire
Biological AstraZeneca Pharmaceuticals LP $5.85 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
OPSUMIT
opsumit
2025 Opsumit 2024 96
Beneficiary count suppressed
exact normalized Medicare Part D
TEZSPIRE
tezspire
2025 Tezspire 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
Actelion Pharmaceuticals US, Inc.
Exact reporting entity; no affiliate inference
2025 OPSUMIT
open payments reported associated product
CMS Open Payments — General Payments
18955 supporting records · 8899 recipient NPIs · example record 1174163978
Opsumit · 2024
Exact normalized brand match · 1 Part D row
96 suppressed by CMS
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 BEVESPI AEROSPHERE
open payments reported associated product
CMS Open Payments — General Payments
763 supporting records · 473 recipient NPIs · example record 1206131384
Bevespi Aerosphere · 2024
Exact normalized brand match · 1 Part D row
15 suppressed by CMS
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 SYMBICORT
open payments reported associated product
CMS Open Payments — General Payments
71 supporting records · 51 recipient NPIs · example record 1206132610
Symbicort · 2024
Exact normalized brand match · 1 Part D row
74 23
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 TEZSPIRE
open payments reported associated product
CMS Open Payments — General Payments
33983 supporting records · 10291 recipient NPIs · example record 1206131392
Tezspire · 2024
Exact normalized brand match · 1 Part D row
11 suppressed by CMS
Boehringer Ingelheim Pharmaceuticals, Inc.
Exact reporting entity; no affiliate inference
2025 OFEV
open payments reported associated product
CMS Open Payments — General Payments
14236 supporting records · 6873 recipient NPIs · example record 1221811762
Ofev · 2024
Exact normalized brand match · 1 Part D row
74 suppressed by CMS
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
636 111
Merck Sharp & Dohme LLC
Exact reporting entity; no affiliate inference
2025 Adempas
open payments reported associated product
CMS Open Payments — General Payments
14 supporting records · 2 recipient NPIs · example record 1237996458
Adempas · 2024
Exact normalized brand match · 1 Part D row
112 11

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
FamotidineFamotidine3474817
Albuterol Sulfate HfaAlbuterol Sulfate2352688
Fluticasone PropionateFluticasone Propionate2273617
Breo ElliptaFluticasone/Vilanterol2153484
Pantoprazole SodiumPantoprazole Sodium2115526
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride1077257
Trelegy ElliptaFluticasone/Umeclidin/Vilanter636111
Stiolto RespimatTiotropium Br/Olodaterol Hcl35682
OmeprazoleOmeprazole33681
Esomeprazole MagnesiumEsomeprazole Magnesium24852
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr24543
Spiriva RespimatTiotropium Bromide16034
Wixela InhubFluticasone Propion/Salmeterol16042
Azelastine HclAzelastine Hcl14052
Ventolin HfaAlbuterol Sulfate13652
Azelastine-FluticasoneAzelastine/Fluticasone13542
LansoprazoleLansoprazole12626
AdempasRiociguat11211
OpsumitMacitentan96suppressed
Sildenafil CitrateSildenafil Citrate8715
Fluticasone-SalmeterolFluticasone Propion/Salmeterol8522
Montelukast SodiumMontelukast Sodium7924
Levalbuterol Tartrate HfaLevalbuterol Tartrate7624
OfevNintedanib Esylate74suppressed
SymbicortBudesonide/Formoterol Fumarate7423
Dexlansoprazole DrDexlansoprazole7119
Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate4615
AzithromycinAzithromycin3939
Advair HfaFluticasone Propion/Salmeterol32suppressed
FurosemideFurosemide3014
LetairisAmbrisentan28suppressed
LevofloxacinLevofloxacin2625
RoflumilastRoflumilast26suppressed
AmbrisentanAmbrisentan23suppressed
SingulairMontelukast Sodium21suppressed
Fluticasone-VilanterolFluticasone/Vilanterol2019
Advair DiskusFluticasone Propion/Salmeterol1813
Bevespi AerosphereGlycopyrrolate/Formoterol Fum15suppressed
PirfenidonePirfenidone14suppressed
TracleerBosentan14suppressed
DexilantDexlansoprazole13suppressed
Dupixent SyringeDupilumab13suppressed
Triamcinolone AcetonideTriamcinolone Acetonide12suppressed
AdcircaTadalafil11suppressed
Atrovent HfaIpratropium Bromide11suppressed
Orenitram ErTreprostinil Diolamine11suppressed
TezspireTezepelumab-Ekko11suppressed

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 $2,986.48 · 35 records Merck Sharp & Dohme LLC CAPVAXIVE, FASENRA, JASCAYD, NUCALA, OPSUMIT, OPSYNVI, PNEUMOVAX 23, TEZSPIRE, Tyvaso, UPTRAVI, WINREVAIR, XYWAV, ZEPBOUND 7
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