Healthcare provider profile · identity verified

Erin Kosak, NP

Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Primary Care · CHARLESTON, SC · NPI 1003276676

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 Erin Kosak, NP received $205.87 in general payments during 2025 across 6 reported records.

Salix Pharmaceuticals, a division of Bausch Health US, LLC accounted for 51.2% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 6 associated products.

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

Lilly USA, 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 MOUNJARO as an associated drug or biological on 186719 records involving 66436 distinct recipient NPIs. Public Medicare Part D data also shows 21 claims for Mounjaro by this doctor in 2024.

Novo Nordisk 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 Ozempic as an associated drug or biological on 261625 records involving 77793 distinct recipient NPIs. Public Medicare Part D data also shows 27 claims for Ozempic by this doctor in 2024.

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

Payment overview · 2025

General Payments

$205.87

6 reported records · 5 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
Salix Pharmaceuticals, a division of Bausch Health US, LLC Unresolved — no canonical attribution shown $105.3551.2%12025
Novo Nordisk Inc Unresolved — no canonical attribution shown $36.1317.6%22025
Dexcom, Inc. Unresolved — no canonical attribution shown $24.9812.1%12025
Lilly USA, LLC Unresolved — no canonical attribution shown $20.119.8%12025
Antares Pharma, Inc. Unresolved — no canonical attribution shown $19.309.4%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$205.876

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
XIFAXAN
Normalized: xifaxan
Drug Salix Pharmaceuticals, a division of Bausch Health US, LLC $105.35 1 2025
Source payment records
  • 2025-06-12 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $105.35 · Open Payments source
Wegovy
Normalized: wegovy
Drug Novo Nordisk Inc $36.13 2 2025
Source payment records
Dexcom G6 Transmitter
Normalized: dexcom g6 transmitter
Medical Supply Dexcom, Inc. $24.98 1 2025
Source payment records
MOUNJARO
Normalized: mounjaro
Drug Lilly USA, LLC $20.11 1 2025
Source payment records
ZEPBOUND
Normalized: zepbound
Drug Lilly USA, LLC $20.11 1 2025
Source payment records
XYOSTED
Normalized: xyosted
Drug Antares Pharma, Inc. $19.30 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
MOUNJARO
mounjaro
2025 Mounjaro 2024 21
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
Lilly USA, LLC
Exact reporting entity; no affiliate inference
2025 MOUNJARO
open payments reported associated product
CMS Open Payments — General Payments
186719 supporting records · 66436 recipient NPIs · example record 1186464455
Mounjaro · 2024
Exact normalized brand match · 1 Part D row
21 suppressed by CMS
Novo Nordisk Inc
Exact reporting entity; no affiliate inference
2025 Ozempic
open payments reported associated product
CMS Open Payments — General Payments
261625 supporting records · 77793 recipient NPIs · example record 1188130076
Ozempic · 2024
Exact normalized brand match · 1 Part D row
27 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
Levothyroxine SodiumLevothyroxine Sodium6519
Rosuvastatin CalciumRosuvastatin Calcium50suppressed
ProgesteroneProgesterone, Micronized41suppressed
Amlodipine BesylateAmlodipine Besylate3611
Liothyronine SodiumLiothyronine Sodium31suppressed
Montelukast SodiumMontelukast Sodium31suppressed
OmeprazoleOmeprazole31suppressed
OzempicSemaglutide27suppressed
LisinoprilLisinopril26suppressed
TirosintLevothyroxine Sodium26suppressed
MeloxicamMeloxicam25suppressed
Escitalopram OxalateEscitalopram Oxalate24suppressed
PrednisonePrednisone2316
Metformin Hcl ErMetformin Hcl21suppressed
MounjaroTirzepatide21suppressed
HydrochlorothiazideHydrochlorothiazide18suppressed
Losartan PotassiumLosartan Potassium18suppressed
FluconazoleFluconazole17suppressed
Tramadol HclTramadol Hcl16suppressed
EzetimibeEzetimibe15suppressed
SpironolactoneSpironolactone15suppressed
Trazodone HclTrazodone Hcl15suppressed
AzithromycinAzithromycin1414
Bupropion XlBupropion Hcl14suppressed
Glipizide ErGlipizide14suppressed
Memantine HclMemantine Hcl14suppressed
MyrbetriqMirabegron14suppressed
Amitriptyline HclAmitriptyline Hcl13suppressed
ClonazepamClonazepam13suppressed
Estradiol (Twice Weekly)Estradiol13suppressed
Oxycodone HclOxycodone Hcl13suppressed
Sertraline HclSertraline Hcl13suppressed
Atorvastatin CalciumAtorvastatin Calcium12suppressed
GabapentinGabapentin12suppressed
Np ThyroidThyroid,pork12suppressed
Pantoprazole SodiumPantoprazole Sodium12suppressed
Albuterol Sulfate HfaAlbuterol Sulfate11suppressed
Azelastine HclAzelastine Hcl11suppressed
Doxycycline HyclateDoxycycline Hyclate11suppressed
Metoprolol SuccinateMetoprolol Succinate11suppressed

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 $205.87 · 6 records Salix Pharmaceuticals, a division of Bausch Health US, LLC Dexcom G6 Transmitter, MOUNJARO, Wegovy, XIFAXAN, XYOSTED, ZEPBOUND 2
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