Healthcare provider profile · identity verified

Colby Welshans

Physician Assistant · WILLIAMSPORT, PA · NPI 1255749586

Profile state: partd only 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

We did not find matching Open Payments records for this doctor in 2025.

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

Payment overview · 2025

General Payments

We did not find matching Open Payments records for this doctor in the selected program year.

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.

Analysis 1 · Payment-linked products

Products named in Open Payments records

No payment-linked product analysis is available because no matching General Payment records were found for the selected year.

Public prescribing for products named in payments

There is no explicit payment-product set available for a Part D comparison.

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.

There is no payer-company set available for this comparison.

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
LisinoprilLisinopril17050
Atorvastatin CalciumAtorvastatin Calcium16647
Amlodipine BesylateAmlodipine Besylate14740
OmeprazoleOmeprazole14442
Levothyroxine SodiumLevothyroxine Sodium13537
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen12432
LorazepamLorazepam11931
FurosemideFurosemide9926
Metformin HclMetformin Hcl7324
Tramadol HclTramadol Hcl7222
GabapentinGabapentin6920
Metoprolol SuccinateMetoprolol Succinate6621
Pantoprazole SodiumPantoprazole Sodium6620
SimvastatinSimvastatin5915
FamotidineFamotidine5513
Losartan PotassiumLosartan Potassium5518
Tamsulosin HclTamsulosin Hcl5516
Escitalopram OxalateEscitalopram Oxalate5313
Albuterol Sulfate HfaAlbuterol Sulfate5128
AllopurinolAllopurinol4812
HydrochlorothiazideHydrochlorothiazide4713
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen4713
Sertraline HclSertraline Hcl46suppressed
Rosuvastatin CalciumRosuvastatin Calcium4313
BaclofenBaclofen4215
Potassium ChloridePotassium Chloride4212
Pravastatin SodiumPravastatin Sodium42suppressed
PrednisonePrednisone4235
FinasterideFinasteride4111
Fluticasone PropionateFluticasone Propionate4119
Cyclobenzaprine HclCyclobenzaprine Hcl4017
GlipizideGlipizide4014
Oxycodone HclOxycodone Hcl4015
Metoprolol TartrateMetoprolol Tartrate36suppressed
AtenololAtenolol3411
ClopidogrelClopidogrel Bisulfate34suppressed
HydrocortisoneHydrocortisone34suppressed
Ropinirole HclRopinirole Hcl3312
Montelukast SodiumMontelukast Sodium32suppressed
OzempicSemaglutide32suppressed
Buspirone HclBuspirone Hcl29suppressed
EliquisApixaban29suppressed
MethylprednisoloneMethylprednisolone2929
AmoxicillinAmoxicillin2821
Esomeprazole MagnesiumEsomeprazole Magnesium28suppressed
MeloxicamMeloxicam28suppressed
Ondansetron OdtOndansetron27suppressed
CelecoxibCelecoxib26suppressed
JanuviaSitagliptin Phosphate26suppressed
JardianceEmpagliflozin26suppressed
NaproxenNaproxen26suppressed
Duloxetine HclDuloxetine Hcl25suppressed
CarvedilolCarvedilol24suppressed
EzetimibeEzetimibe24suppressed
Venlafaxine Hcl ErVenlafaxine Hcl24suppressed
DutasterideDutasteride22suppressed
Triamcinolone AcetonideTriamcinolone Acetonide2215
AzithromycinAzithromycin2119
Citalopram HbrCitalopram Hydrobromide21suppressed
Metformin Hcl ErMetformin Hcl21suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog20suppressed
TrulicityDulaglutide20suppressed
Warfarin SodiumWarfarin Sodium20suppressed
NitroglycerinNitroglycerin19suppressed
Trazodone HclTrazodone Hcl1912
Meclizine HclMeclizine Hcl18suppressed
Propranolol Hcl ErPropranolol Hcl18suppressed
XareltoRivaroxaban18suppressed
IrbesartanIrbesartan17suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate17suppressed
PregabalinPregabalin17suppressed
Diclofenac SodiumDiclofenac Sodium16suppressed
Doxazosin MesylateDoxazosin Mesylate16suppressed
Humalog Kwikpen U-100Insulin Lispro15suppressed
Ondansetron HclOndansetron Hcl14suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid14suppressed
Clotrimazole-BetamethasoneClotrimazole/Betamethasone Dip13suppressed
Combivent RespimatIpratropium/Albuterol Sulfate13suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine13suppressed
Donepezil HclDonepezil Hcl13suppressed
Klor-Con 10Potassium Chloride13suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide13suppressed
Ranolazine ErRanolazine13suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter13suppressed
Ultra-Fine Short Pen NeedlePen Needle, Diabetic13suppressed
Bupropion Hcl SrBupropion Hcl12suppressed
CephalexinCephalexin1211
Dicyclomine HclDicyclomine Hcl12suppressed
Glipizide ErGlipizide12suppressed
LinzessLinaclotide12suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst1211
Zolpidem TartrateZolpidem Tartrate12suppressed
Fluoxetine HclFluoxetine Hcl11suppressed
TopiramateTopiramate11suppressed

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
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