Healthcare provider profile · identity verified

Clair Barton Anderson, PA

Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant|Medical · CALIENTE, NV · NPI 1982933040

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 Clair Barton Anderson, PA received $78.30 in general payments during 2025 across 4 reported records.

Biogen, Inc. accounted for 79.3% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 3 associated products.

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

Payment overview · 2025

General Payments

$78.30

4 reported records · 2 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
Biogen, Inc. Unresolved — no canonical attribution shown $62.1279.3%32025
Verona Pharma, Inc. Unresolved — no canonical attribution shown $16.1820.7%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$78.304

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
VUMERITY
Normalized: vumerity
Drug Biogen, Inc. $62.12 3 2025
Source payment records
TYSABRI
Normalized: tysabri
Biological Biogen, Inc. $36.70 2 2025
Source payment records
Ohtuvayre
Normalized: ohtuvayre
Drug Verona Pharma, Inc. $16.18 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

No exact normalized or approved-alias overlap was found in the loaded Part D year. This does not mean the doctor never prescribed the product.

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.

No publishable same-company prescribing overlap was found in the loaded Part D year. This does not mean the doctor never prescribed a drug reported elsewhere by a paying company.

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
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen15828
AlprazolamAlprazolam9214
Amlodipine BesylateAmlodipine Besylate8229
GabapentinGabapentin8025
Tramadol HclTramadol Hcl7815
Tamsulosin HclTamsulosin Hcl7724
Losartan PotassiumLosartan Potassium7624
LisinoprilLisinopril7423
Atorvastatin CalciumAtorvastatin Calcium7021
AzithromycinAzithromycin6554
Levothyroxine SodiumLevothyroxine Sodium6419
OmeprazoleOmeprazole6417
TemazepamTemazepam59suppressed
Metformin HclMetformin Hcl5314
Tizanidine HclTizanidine Hcl5021
IbuprofenIbuprofen4812
Amitriptyline HclAmitriptyline Hcl4719
FurosemideFurosemide4717
Montelukast SodiumMontelukast Sodium44suppressed
Ventolin HfaAlbuterol Sulfate4414
Zolpidem TartrateZolpidem Tartrate42suppressed
Citalopram HbrCitalopram Hydrobromide4111
Pantoprazole SodiumPantoprazole Sodium4114
Trazodone HclTrazodone Hcl4012
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen39suppressed
PrednisonePrednisone3828
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav3635
HydrochlorothiazideHydrochlorothiazide3411
AripiprazoleAripiprazole33suppressed
FamotidineFamotidine33suppressed
Oxycodone HclOxycodone Hcl33suppressed
Ropinirole HclRopinirole Hcl33suppressed
EliquisApixaban32suppressed
BaclofenBaclofen28suppressed
Fluticasone PropionateFluticasone Propionate2813
MethylprednisoloneMethylprednisolone2827
Ondansetron HclOndansetron Hcl2812
Potassium ChloridePotassium Chloride27suppressed
Rosuvastatin CalciumRosuvastatin Calcium27suppressed
CephalexinCephalexin2618
Escitalopram OxalateEscitalopram Oxalate26suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl25suppressed
DiazepamDiazepam23suppressed
Fluoxetine HclFluoxetine Hcl22suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide22suppressed
PregabalinPregabalin22suppressed
SimvastatinSimvastatin22suppressed
Triamcinolone AcetonideTriamcinolone Acetonide2216
MeloxicamMeloxicam21suppressed
Metoprolol TartrateMetoprolol Tartrate21suppressed
AtenololAtenolol20suppressed
ClonazepamClonazepam20suppressed
Diphenoxylate-AtropineDiphenoxylate Hcl/Atropine19suppressed
FluconazoleFluconazole1918
Metoprolol SuccinateMetoprolol Succinate19suppressed
CelecoxibCelecoxib18suppressed
SpironolactoneSpironolactone17suppressed
CarvedilolCarvedilol16suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine16suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim1613
Albuterol Sulfate HfaAlbuterol Sulfate15suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate15suppressed
Quetiapine FumarateQuetiapine Fumarate15suppressed
Alendronate SodiumAlendronate Sodium14suppressed
AmoxicillinAmoxicillin1412
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst1414
Doxazosin MesylateDoxazosin Mesylate13suppressed
Memantine HclMemantine Hcl13suppressed
Nurtec OdtRimegepant Sulfate13suppressed
Venlafaxine Hcl ErVenlafaxine Hcl13suppressed
Duloxetine HclDuloxetine Hcl12suppressed
Incruse ElliptaUmeclidinium Bromide12suppressed
LevofloxacinLevofloxacin1212
Prazosin HclPrazosin Hcl12suppressed
QuliptaAtogepant12suppressed
CefdinirCefdinir11suppressed
Metformin Hcl ErMetformin Hcl11suppressed
Metoclopramide HclMetoclopramide Hcl11suppressed
NaproxenNaproxen11suppressed
Neomycin-Polymyxin-HcNeomycin/Polymyxin B/Hydrocort11suppressed
Sertraline HclSertraline Hcl11suppressed
SynthroidLevothyroxine Sodium11suppressed

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 $78.30 · 4 records Biogen, Inc. Ohtuvayre, TYSABRI, VUMERITY
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