Healthcare provider profile · identity verified

Kasem Charnvitayapong, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine|Pulmonary Disease · STUART, FL · NPI 1497847206

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 Kasem Charnvitayapong, M.D. received $207.88 in general payments during 2025 across 14 reported records.

Insmed, Inc. accounted for 37.2% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 9 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Ofev, Trelegy Ellipta.

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 26 claims for Symbicort 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 22 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 195 claims for Trelegy Ellipta 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 ELIQUIS as an associated drug or biological on 87112 records involving 36032 distinct recipient NPIs. Public Medicare Part D data also shows 32 claims for Eliquis by this doctor in 2024.

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

Payment overview · 2025

General Payments

$207.88

14 reported records · 6 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
Insmed, Inc. Unresolved — no canonical attribution shown $77.3637.2%42025
Electromed, Inc. Unresolved — no canonical attribution shown $43.1920.8%62025
PFIZER INC. Unresolved — no canonical attribution shown $32.9015.8%12025
Boehringer Ingelheim Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $23.9111.5%12025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $15.697.5%12025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $14.837.1%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$207.8814

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
Arikayce
Normalized: arikayce
Drug Insmed, Inc. $77.36 4 2025
Source payment records
SMARTVEST
Normalized: smartvest
Device Electromed, Inc. $43.19 6 2025
Source payment records
Brinsupri
Normalized: brinsupri
Drug Insmed, Inc. $38.48 2 2025
Source payment records
CUTAQUIG
Normalized: cutaquig
Biological PFIZER INC. $32.90 1 2025
Source payment records
OCTAGAM IMMUNE GLOBULIN (HUMAN)
Normalized: octagam immune globulin human
Drug PFIZER INC. $32.90 1 2025
Source payment records
PANZYGA
Normalized: panzyga
Biological PFIZER INC. $32.90 1 2025
Source payment records
OFEV
Normalized: ofev
Drug Boehringer Ingelheim Pharmaceuticals, Inc. $23.91 1 2025
Source payment records
AIRSUPRA
Normalized: airsupra
Drug AstraZeneca Pharmaceuticals LP $15.69 1 2025
Source payment records
TRELEGY ELLIPTA
Normalized: trelegy ellipta
Drug GlaxoSmithKline, LLC. $14.83 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
OFEV
ofev
2025 Ofev 2024 22
Beneficiary count suppressed
exact normalized Medicare Part D
TRELEGY ELLIPTA
trelegy ellipta
2025 Trelegy Ellipta 2024 195 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
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
26 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
22 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
195 46
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 ELIQUIS
open payments reported associated product
CMS Open Payments — General Payments
87112 supporting records · 36032 recipient NPIs · example record 1228794063
Eliquis · 2024
Exact normalized brand match · 1 Part D row
32 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
Montelukast SodiumMontelukast Sodium24276
Trelegy ElliptaFluticasone/Umeclidin/Vilanter19546
Albuterol Sulfate HfaAlbuterol Sulfate18058
Breo ElliptaFluticasone/Vilanterol12625
PrednisonePrednisone10452
AlprazolamAlprazolam5314
Ventolin HfaAlbuterol Sulfate4217
Breztri AerosphereBudesonide/Glycopyr/Formoterol3912
FurosemideFurosemide37suppressed
Doxycycline HyclateDoxycycline Hyclate3428
Fluticasone PropionateFluticasone Propionate34suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol3312
EliquisApixaban32suppressed
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr29suppressed
SymbicortBudesonide/Formoterol Fumarate26suppressed
Arnuity ElliptaFluticasone Furoate23suppressed
Spiriva HandihalerTiotropium Bromide23suppressed
Spiriva RespimatTiotropium Bromide23suppressed
CefdinirCefdinir2220
OfevNintedanib Esylate22suppressed
Wixela InhubFluticasone Propion/Salmeterol22suppressed
Theophylline ErTheophylline Anhydrous20suppressed
Ipratropium BromideIpratropium Bromide19suppressed
Stiolto RespimatTiotropium Br/Olodaterol Hcl18suppressed
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride17suppressed
Tramadol HclTramadol Hcl17suppressed
Zolpidem TartrateZolpidem Tartrate17suppressed
LorazepamLorazepam16suppressed
ClonazepamClonazepam15suppressed
AtovaquoneAtovaquone14suppressed
Fluticasone-VilanterolFluticasone/Vilanterol14suppressed
OmeprazoleOmeprazole14suppressed
AzithromycinAzithromycin13suppressed
FamotidineFamotidine13suppressed
Gamunex-CImmune Globul G/Gly/Iga Avg 4613suppressed
Incruse ElliptaUmeclidinium Bromide12suppressed
Sildenafil CitrateSildenafil Citrate12suppressed
AlvescoCiclesonide11suppressed

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 $207.88 · 14 records Insmed, Inc. AIRSUPRA, Arikayce, Brinsupri, CUTAQUIG, OCTAGAM IMMUNE GLOBULIN (HUMAN), OFEV, PANZYGA, SMARTVEST, TRELEGY ELLIPTA 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