Healthcare provider profile · identity verified

David A Neumann, MD

Allopathic & Osteopathic Physicians|Internal Medicine|Gastroenterology · OKLAHOMA CITY, OK · NPI 1043339575

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 David A Neumann, MD received $2,041.84 in general payments during 2025 across 114 reported records.

ABBVIE INC. accounted for 33.9% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 20 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Creon, Linzess, Rinvoq, Viberzi, Zenpep.

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 CREON as an associated drug or biological on 91561 records involving 20616 distinct recipient NPIs. Public Medicare Part D data also shows 103 claims for Creon by this doctor in 2024.

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 LINZESS as an associated drug or biological on 87954 records involving 21815 distinct recipient NPIs. Public Medicare Part D data also shows 29 claims for Linzess by this doctor in 2024.

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 11 claims for Rinvoq by this doctor in 2024.

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 VIBERZI as an associated drug or biological on 11354 records involving 5020 distinct recipient NPIs. Public Medicare Part D data also shows 21 claims for Viberzi by this doctor in 2024.

Aimmune Therapeutics, 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 ZENPEP as an associated drug or biological on 32144 records involving 12432 distinct recipient NPIs. Public Medicare Part D data also shows 16 claims for Zenpep 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 13 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

$2,041.84

114 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
ABBVIE INC. Unresolved — no canonical attribution shown $692.9333.9%492025
Takeda Pharmaceuticals U.S.A., Inc. Unresolved — no canonical attribution shown $435.3821.3%232025
Lilly USA, LLC Unresolved — no canonical attribution shown $178.658.8%82025
Ipsen Biopharmaceuticals, Inc Unresolved — no canonical attribution shown $105.415.2%62025
Gilead Sciences, Inc. Unresolved — no canonical attribution shown $82.274.0%52025
Enterra Medical, Inc. Unresolved — no canonical attribution shown $80.003.9%12025
Medtronic, Inc. Medtronic, Inc.
exact · evidence 2025-07-22
$76.503.8%22025
GENZYME CORPORATION Unresolved — no canonical attribution shown $74.493.6%42025
Regeneron Healthcare Solutions, Inc. Unresolved — no canonical attribution shown $67.443.3%32025
Madrigal Pharmaceuticals Unresolved — no canonical attribution shown $50.332.5%22025
Celltrion USA Inc. Unresolved — no canonical attribution shown $47.502.3%22025
Pharmacosmos Therapeutics Inc. Unresolved — no canonical attribution shown $39.271.9%22025
Aimmune Therapeutics, Inc. Unresolved — no canonical attribution shown $35.261.7%22025
Janssen Biotech, Inc. Unresolved — no canonical attribution shown $31.161.5%22025
Novo Nordisk Inc Unresolved — no canonical attribution shown $19.511.0%12025
PFIZER INC. Unresolved — no canonical attribution shown $15.370.8%12025
Phathom Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $10.370.5%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$2,041.84114

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
SKYRIZI
Normalized: skyrizi
Biological ABBVIE INC. $572.12 38 2025
Source payment records
RINVOQ
Normalized: rinvoq
Biological ABBVIE INC. $533.44 36 2025
Source payment records
ENTYVIO
Normalized: entyvio
Biological Takeda Pharmaceuticals U.S.A., Inc. $355.92 19 2025
Source payment records
OMVOH
Normalized: omvoh
Drug Lilly USA, LLC $178.65 8 2025
Source payment records
DUPIXENT
Normalized: dupixent
Biological GENZYME CORPORATION, Regeneron Healthcare Solutions, Inc. $141.93 7 2025
Source payment records
IQIRVO
Normalized: iqirvo
Drug Ipsen Biopharmaceuticals, Inc $105.41 6 2025
Source payment records
EOHILIA
Normalized: eohilia
Drug Takeda Pharmaceuticals U.S.A., Inc. $79.46 4 2025
Source payment records
INTERSTIM
Normalized: interstim
Device Medtronic, Inc. $76.50 2 2025
Source payment records
CREON
Normalized: creon
Drug ABBVIE INC. $73.37 7 2025
Source payment records
REZDIFFRA
Normalized: rezdiffra
Drug Madrigal Pharmaceuticals $50.33 2 2025
Source payment records
VEGZELMA
Normalized: vegzelma
Biological Celltrion USA Inc. $47.50 2 2025
Source payment records
MAVYRET
Normalized: mavyret
Drug ABBVIE INC. $47.44 4 2025
Source payment records
LINZESS
Normalized: linzess
Drug ABBVIE INC. $40.70 4 2025
Source payment records
MONOFERRIC
Normalized: monoferric
Drug Pharmacosmos Therapeutics Inc. $39.27 2 2025
Source payment records
ZENPEP
Normalized: zenpep
Drug Aimmune Therapeutics, Inc. $35.26 2 2025
Source payment records
TREMFYA
Normalized: tremfya
Drug Janssen Biotech, Inc. $31.16 2 2025
Source payment records
VIBERZI
Normalized: viberzi
Drug ABBVIE INC. $30.77 2 2025
Source payment records
Wegovy
Normalized: wegovy
Drug Novo Nordisk Inc $19.51 1 2025
Source payment records
VELSIPITY
Normalized: velsipity
Drug PFIZER INC. $15.37 1 2025
Source payment records
VOQUEZNA
Normalized: voquezna
Drug Phathom Pharmaceuticals, Inc. $10.37 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
CREON
creon
2025 Creon 2024 103 exact normalized Medicare Part D
LINZESS
linzess
2025 Linzess 2024 29
Beneficiary count suppressed
exact normalized Medicare Part D
RINVOQ
rinvoq
2025 Rinvoq 2024 11
Beneficiary count suppressed
exact normalized Medicare Part D
VIBERZI
viberzi
2025 Viberzi 2024 21
Beneficiary count suppressed
exact normalized Medicare Part D
ZENPEP
zenpep
2025 Zenpep 2024 16
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 CREON
open payments reported associated product
CMS Open Payments — General Payments
91561 supporting records · 20616 recipient NPIs · example record 1201352608
Creon · 2024
Exact normalized brand match · 1 Part D row
103 25
ABBVIE INC.
Exact reporting entity; no affiliate inference
2025 LINZESS
open payments reported associated product
CMS Open Payments — General Payments
87954 supporting records · 21815 recipient NPIs · example record 1201352608
Linzess · 2024
Exact normalized brand match · 1 Part D row
29 suppressed by CMS
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
11 suppressed by CMS
ABBVIE INC.
Exact reporting entity; no affiliate inference
2025 VIBERZI
open payments reported associated product
CMS Open Payments — General Payments
11354 supporting records · 5020 recipient NPIs · example record 1201352948
Viberzi · 2024
Exact normalized brand match · 1 Part D row
21 suppressed by CMS
Aimmune Therapeutics, Inc.
Exact reporting entity; no affiliate inference
2025 ZENPEP
open payments reported associated product
CMS Open Payments — General Payments
32144 supporting records · 12432 recipient NPIs · example record 1249641927
Zenpep · 2024
Exact normalized brand match · 1 Part D row
16 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
13 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
OmeprazoleOmeprazole618190
Pantoprazole SodiumPantoprazole Sodium438124
FamotidineFamotidine26474
MesalamineMesalamine14425
UrsodiolUrsodiol13428
Sod Sulf-Potass Sulf-Mag SulfSodium, Potassium,mag Sulfates116113
CreonLipase/Protease/Amylase10325
Metoclopramide HclMetoclopramide Hcl8124
Gavilyte-GPeg3350/Sod Sulf,bicarb,cl/Kcl8076
Dexlansoprazole DrDexlansoprazole7614
CholestyramineCholestyramine (With Sugar)7433
Mesalamine ErMesalamine7013
SulfasalazineSulfasalazine7013
Budesonide DrBudesonide6831
Peg-3350 And ElectrolytesPeg3350/Sod Sulf,bicarb,cl/Kcl6766
AzathioprineAzathioprine6316
Ondansetron OdtOndansetron5924
Humira(Cf) PenAdalimumab57suppressed
Colestipol HclColestipol Hcl5522
LubiprostoneLubiprostone4614
Esomeprazole MagnesiumEsomeprazole Magnesium3812
TrulancePlecanatide38suppressed
Amitriptyline HclAmitriptyline Hcl3011
LansoprazoleLansoprazole29suppressed
LinzessLinaclotide29suppressed
Balsalazide DisodiumBalsalazide Disodium27suppressed
SucralfateSucralfate2722
Budesonide EcBudesonide2512
ViberziEluxadoline21suppressed
Promethazine HclPromethazine Hcl19suppressed
LactuloseLactulose17suppressed
Mesalamine DrMesalamine16suppressed
SutabSod Sulf/Pot Chloride/Mag Sulf1616
ZenpepLipase/Protease/Amylase16suppressed
Ciprofloxacin HclCiprofloxacin Hcl1511
HydrocortisoneHydrocortisone1511
MercaptopurineMercaptopurine15suppressed
Cholestyramine LightCholestyramine14suppressed
Dicyclomine HclDicyclomine Hcl13suppressed
OzempicSemaglutide13suppressed
Procto-Med HcHydrocortisone1312
Skyrizi On-BodyRisankizumab-Rzaa13suppressed
AllopurinolAllopurinol12suppressed
Atorvastatin CalciumAtorvastatin Calcium12suppressed
CimetidineCimetidine12suppressed
Cyclosporine ModifiedCyclosporine, Modified12suppressed
NexiumEsomeprazole Magnesium12suppressed
PentasaMesalamine12suppressed
Sandostatin Lar DepotOctreotide Acetate,mi-Spheres12suppressed
MetronidazoleMetronidazole11suppressed
RelistorMethylnaltrexone Bromide11suppressed
RinvoqUpadacitinib11suppressed

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 $2,041.84 · 114 records ABBVIE INC. CREON, DUPIXENT, ENTYVIO, EOHILIA, INTERSTIM, IQIRVO, LINZESS, MAVYRET, MONOFERRIC, OMVOH, REZDIFFRA, RINVOQ, SKYRIZI, TREMFYA, VEGZELMA, VELSIPITY, VIBERZI, VOQUEZNA, Wegovy, ZENPEP 6
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