Healthcare provider profile · identity verified

Katlyn Amason, NP

Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Acute Care · FLOWOOD, MS · NPI 1144854498

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 Katlyn Amason, NP received $1,145.65 in general payments during 2025 across 43 reported records.

Sumitomo Pharma America, Inc. accounted for 19.9% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 23 associated products.

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

Sumitomo Pharma America, 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 GEMTESA as an associated drug or biological on 61692 records involving 22152 distinct recipient NPIs. Public Medicare Part D data also shows 52 claims for Gemtesa by this doctor in 2024.

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

Payment overview · 2025

General Payments

$1,145.65

43 reported records · 17 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
Sumitomo Pharma America, Inc. Unresolved — no canonical attribution shown $227.6719.9%102025
ABBVIE INC. Unresolved — no canonical attribution shown $168.2914.7%52025
Dendreon Pharmaceuticals LLC Unresolved — no canonical attribution shown $164.1314.3%62025
Teleflex LLC Unresolved — no canonical attribution shown $160.6514.0%22025
Janssen Biotech, Inc. Unresolved — no canonical attribution shown $133.3611.6%52025
Bayer Healthcare Pharmaceuticals Inc. Unresolved — no canonical attribution shown $55.414.8%32025
UROGEN PHARMA, INC. Unresolved — no canonical attribution shown $45.494.0%22025
Calliditas Therapeutics US Inc. Unresolved — no canonical attribution shown $30.922.7%12025
PFIZER INC. Unresolved — no canonical attribution shown $22.191.9%12025
Olympus America Inc. Unresolved — no canonical attribution shown $20.721.8%12025
Merck Sharp & Dohme LLC Unresolved — no canonical attribution shown $20.511.8%12025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $17.831.6%12025
Verity Pharmaceuticals Inc. Unresolved — no canonical attribution shown $17.651.5%12025
Medtronic, Inc. Medtronic, Inc.
exact · evidence 2025-07-22
$16.571.4%12025
ACCORD HEALTHCARE, INC. Unresolved — no canonical attribution shown $15.421.4%12025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $14.991.3%12025
Boston Scientific Corporation Unresolved — no canonical attribution shown $13.851.2%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$1,145.6543

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
ORGOVYX
Normalized: orgovyx
Drug PFIZER INC., Sumitomo Pharma America, Inc. $191.36 7 2025
Source payment records
PROVENGE
Normalized: provenge
Drug Dendreon Pharmaceuticals LLC $164.13 6 2025
Source payment records
BOTOX
Normalized: botox
Biological ABBVIE INC. $156.63 4 2025
Source payment records
UROLIFT
Normalized: urolift
Device Teleflex LLC $143.03 1 2025
Source payment records
ERLEADA
Normalized: erleada
Drug Janssen Biotech, Inc. $133.36 5 2025
Source payment records
GEMTESA
Normalized: gemtesa
Drug Sumitomo Pharma America, Inc. $58.50 4 2025
Source payment records
Nubeqa
Normalized: nubeqa
Drug Bayer Healthcare Pharmaceuticals Inc. $55.41 3 2025
Source payment records
Xofigo
Normalized: xofigo
Drug Bayer Healthcare Pharmaceuticals Inc. $55.41 3 2025
Source payment records
JELMYTO
Normalized: jelmyto
Drug UROGEN PHARMA, INC. $45.49 2 2025
Source payment records
TARPEYO
Normalized: tarpeyo
Drug Calliditas Therapeutics US Inc. $30.92 1 2025
Source payment records
TALZENNA
Normalized: talzenna
Drug PFIZER INC. $22.19 1 2025
Source payment records
XTANDI
Normalized: xtandi
Drug PFIZER INC. $22.19 1 2025
Source payment records
iTIND System
Normalized: itind system
Device Olympus America Inc. $20.72 1 2025
Source payment records
LYNPARZA
Normalized: lynparza
Biological Merck Sharp & Dohme LLC $20.51 1 2025
Source payment records
PLUVICTO
Normalized: pluvicto
Drug Novartis Pharmaceuticals Corporation $17.83 1 2025
Source payment records
Trelstar
Normalized: trelstar
Drug Verity Pharmaceuticals Inc. $17.65 1 2025
Source payment records
BARRIGEL
Normalized: barrigel
Device Teleflex LLC $17.62 1 2025
Source payment records
INTERSTIM
Normalized: interstim
Device Medtronic, Inc. $16.57 1 2025
Source payment records
Camcevi
Normalized: camcevi
Drug ACCORD HEALTHCARE, INC. $15.42 1 2025
Source payment records
AREXVY
Normalized: arexvy
Biological GlaxoSmithKline, LLC. $14.99 1 2025
Source payment records
SHINGRIX
Normalized: shingrix
Biological GlaxoSmithKline, LLC. $14.99 1 2025
Source payment records
WaveWriter Alpha Prime 16
Normalized: wavewriter alpha prime 16
Device Boston Scientific Corporation $13.85 1 2025
Source payment records
LUPRON DEPOT
Normalized: lupron depot
Drug ABBVIE INC. $11.66 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
GEMTESA
gemtesa
2025 Gemtesa 2024 52 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
Sumitomo Pharma America, Inc.
Exact reporting entity; no affiliate inference
2025 GEMTESA
open payments reported associated product
CMS Open Payments — General Payments
61692 supporting records · 22152 recipient NPIs · example record 1176593503
Gemtesa · 2024
Exact normalized brand match · 1 Part D row
52 25

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
Tamsulosin HclTamsulosin Hcl399169
Ciprofloxacin HclCiprofloxacin Hcl179167
DutasterideDutasteride14953
NitrofurantoinNitrofurantoin Macrocrystal10758
FinasterideFinasteride6026
GemtesaVibegron5225
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst5244
FluconazoleFluconazole4933
EstradiolEstradiol4027
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim4040
LevofloxacinLevofloxacin3833
CephalexinCephalexin3018
Methenamine HippurateMethenamine Hippurate29suppressed
Oxybutynin ChlorideOxybutynin Chloride2918
CefuroximeCefuroxime Axetil2722
Doxycycline HyclateDoxycycline Hyclate2118
MyrbetriqMirabegron17suppressed
MeropenemMeropenem1511
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1412
Bethanechol ChlorideBethanechol Chloride14suppressed
Tolterodine Tartrate ErTolterodine Tartrate13suppressed
Potassium Citrate ErPotassium Citrate12suppressed

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 $1,145.65 · 43 records Sumitomo Pharma America, Inc. AREXVY, BARRIGEL, BOTOX, Camcevi, ERLEADA, GEMTESA, INTERSTIM, JELMYTO, LUPRON DEPOT, LYNPARZA, Nubeqa, ORGOVYX, PLUVICTO, PROVENGE, SHINGRIX, TALZENNA, TARPEYO, Trelstar, UROLIFT, WaveWriter Alpha Prime 16, XTANDI, Xofigo, iTIND System 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