Healthcare provider profile · identity verified

William E Davis

Allopathic & Osteopathic Physicians|Internal Medicine|Rheumatology · NEW ORLEANS, LA · NPI 1891753216

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 William E Davis received $18,264.49 in general payments during 2025 across 25 reported records.

Amgen Inc. accounted for 85.0% 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: Rinvoq.

ABBVIE 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 RINVOQ as an associated drug or biological on 279238 records involving 34343 distinct recipient NPIs. Public Medicare Part D data also shows 65 claims for Rinvoq by this doctor in 2024.

Amgen 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 ENBREL as an associated drug or biological on 9330 records involving 2094 distinct recipient NPIs. Public Medicare Part D data also shows 13 claims for Enbrel 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 BENLYSTA as an associated drug or biological on 19884 records involving 5034 distinct recipient NPIs. Public Medicare Part D data also shows 29 claims for Benlysta by this doctor in 2024.

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

Payment overview · 2025

General Payments

$18,264.49

25 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
Amgen Inc. Unresolved — no canonical attribution shown $15,516.7685.0%122025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $2,265.7012.4%42025
ABBVIE INC. Unresolved — no canonical attribution shown $228.081.2%72025
UCB, Inc. Unresolved — no canonical attribution shown $128.950.7%12025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $125.000.7%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$15,250.007
Consulting Fee$2,148.001
Food and Beverage$866.4917

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
UPLIZNA
Normalized: uplizna
Biological Amgen Inc. $12,250.00 6 2025
Source payment records
RINVOQ
Normalized: rinvoq
Biological ABBVIE INC. $219.11 6 2025
Source payment records
Bimzelx
Normalized: bimzelx
Biological UCB, Inc. $128.95 1 2025
Source payment records
TAVNEOS
Normalized: tavneos
Drug Amgen Inc. $106.32 1 2025
Source payment records
OTEZLA
Normalized: otezla
Drug Amgen Inc. $38.61 3 2025
Source payment records
SKYRIZI
Normalized: skyrizi
Biological ABBVIE INC. $8.97 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
RINVOQ
rinvoq
2025 Rinvoq 2024 65
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
ABBVIE INC.
Exact reporting entity; no affiliate inference
2025 RINVOQ
open payments reported associated product
CMS Open Payments — General Payments
279238 supporting records · 34343 recipient NPIs · example record 1201352600
Rinvoq · 2024
Exact normalized brand match · 1 Part D row
65 suppressed by CMS
Amgen Inc.
Exact reporting entity; no affiliate inference
2025 ENBREL
open payments reported associated product
CMS Open Payments — General Payments
9330 supporting records · 2094 recipient NPIs · example record 1226877474
Enbrel · 2024
Exact normalized brand match · 1 Part D row
13 suppressed by CMS
GlaxoSmithKline, LLC.
Exact reporting entity; no affiliate inference
2025 BENLYSTA
open payments reported associated product
CMS Open Payments — General Payments
19884 supporting records · 5034 recipient NPIs · example record 1190332353
Benlysta · 2024
Exact normalized brand match · 1 Part D row
29 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
MethotrexateMethotrexate Sodium411116
Hydroxychloroquine SulfateHydroxychloroquine Sulfate329106
PrednisonePrednisone32777
Tramadol HclTramadol Hcl23142
LeflunomideLeflunomide21354
CelecoxibCelecoxib14032
GabapentinGabapentin13845
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen11322
Folic AcidFolic Acid8227
Enbrel SureclickEtanercept7811
MeloxicamMeloxicam7323
Mycophenolate MofetilMycophenolate Mofetil6818
RinvoqUpadacitinib65suppressed
Humira(Cf) PenAdalimumab59suppressed
AllopurinolAllopurinol5422
Cyclobenzaprine HclCyclobenzaprine Hcl5412
Duloxetine HclDuloxetine Hcl5415
Alendronate SodiumAlendronate Sodium5014
Tizanidine HclTizanidine Hcl4615
Actemra ActpenTocilizumab40suppressed
PregabalinPregabalin34suppressed
Pantoprazole SodiumPantoprazole Sodium30suppressed
BenlystaBelimumab29suppressed
EtodolacEtodolac29suppressed
SimponiGolimumab29suppressed
Sulfasalazine DrSulfasalazine26suppressed
ColchicineColchicine25suppressed
Acetaminophen-CodeineAcetaminophen With Codeine22suppressed
SulfasalazineSulfasalazine21suppressed
Tramadol Hcl-AcetaminophenTramadol Hcl/Acetaminophen20suppressed
NabumetoneNabumetone19suppressed
Trazodone HclTrazodone Hcl18suppressed
FluconazoleFluconazole17suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen17suppressed
Promethazine HclPromethazine Hcl17suppressed
RasuvoMethotrexate/Pf16suppressed
AzathioprineAzathioprine15suppressed
IbuprofenIbuprofen15suppressed
MethocarbamolMethocarbamol15suppressed
EnbrelEtanercept13suppressed
OmeprazoleOmeprazole13suppressed
Orencia ClickjectAbatacept13suppressed
Amlodipine BesylateAmlodipine Besylate12suppressed
FenofibrateFenofibrate11suppressed
Ibandronate SodiumIbandronate Sodium11suppressed
NaproxenNaproxen11suppressed

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 $18,264.49 · 25 records Amgen Inc. Bimzelx, OTEZLA, RINVOQ, SKYRIZI, TAVNEOS, UPLIZNA 3
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