Healthcare provider profile · identity verified

William Martin Schnitz, MD

Allopathic & Osteopathic Physicians|Internal Medicine|Rheumatology · OKLAHOMA CITY, OK · NPI 1629015763

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 Martin Schnitz, MD received $1,461.86 in general payments during 2025 across 67 reported records.

Amgen Inc. accounted for 32.2% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 22 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Enbrel, Otezla, Rinvoq, Tavneos.

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 88 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 SYNTHROID as an associated drug or biological on 10655 records involving 4881 distinct recipient NPIs. Public Medicare Part D data also shows 18 claims for Synthroid 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 32 claims for Enbrel 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 OTEZLA as an associated drug or biological on 177267 records involving 48600 distinct recipient NPIs. Public Medicare Part D data also shows 26 claims for Otezla 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 TAVNEOS as an associated drug or biological on 21404 records involving 7606 distinct recipient NPIs. Public Medicare Part D data also shows 23 claims for Tavneos by this doctor in 2024.

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

Payment overview · 2025

General Payments

$1,461.86

67 reported records · 16 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 $471.1632.2%182025
ABBVIE INC. Unresolved — no canonical attribution shown $327.9422.4%152025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $166.9011.4%72025
UCB, Inc. Unresolved — no canonical attribution shown $152.2010.4%82025
Fresenius Kabi USA, LLC Unresolved — no canonical attribution shown $77.925.3%42025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $68.974.7%42025
Sandoz Inc. Unresolved — no canonical attribution shown $36.132.5%22025
Janssen Biotech, Inc. Unresolved — no canonical attribution shown $27.321.9%12025
PFIZER INC. Unresolved — no canonical attribution shown $26.271.8%12025
Genentech USA, Inc. Unresolved — no canonical attribution shown $18.811.3%12025
Alexion Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $17.921.2%12025
Fidia Pharma USA Inc. Unresolved — no canonical attribution shown $14.721.0%12025
TerSera Therapeutics LLC Unresolved — no canonical attribution shown $14.321.0%12025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $13.930.9%12025
Boehringer Ingelheim Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $13.860.9%12025
GENZYME CORPORATION Unresolved — no canonical attribution shown $13.490.9%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$1,461.8667

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
RINVOQ
Normalized: rinvoq
Biological ABBVIE INC. $235.65 9 2025
Source payment records
EVENITY
Normalized: evenity
Biological Amgen Inc. $190.56 5 2025
Source payment records
SAPHNELO
Normalized: saphnelo
Biological AstraZeneca Pharmaceuticals LP $166.90 7 2025
Source payment records
TAVNEOS
Normalized: tavneos
Drug Amgen Inc. $155.24 6 2025
Source payment records
Bimzelx
Normalized: bimzelx
Biological UCB, Inc. $152.20 8 2025
Source payment records
SKYRIZI
Normalized: skyrizi
Biological ABBVIE INC. $92.29 6 2025
Source payment records
COSENTYX
Normalized: cosentyx
Drug Novartis Pharmaceuticals Corporation $68.97 4 2025
Source payment records
OTEZLA
Normalized: otezla
Drug Amgen Inc. $48.62 2 2025
Source payment records
PROLIA
Normalized: prolia
Biological Amgen Inc. $43.10 3 2025
Source payment records
HYRIMOZ
Normalized: hyrimoz
Biological Sandoz Inc. $36.13 2 2025
Source payment records
UPLIZNA
Normalized: uplizna
Biological Amgen Inc. $34.59 2 2025
Source payment records
KRYSTEXXA
Normalized: krystexxa
Biological Amgen Inc. $33.73 2 2025
Source payment records
TREMFYA
Normalized: tremfya
Drug Janssen Biotech, Inc. $27.32 1 2025
Source payment records
XELJANZ
Normalized: xeljanz
Drug PFIZER INC. $26.27 1 2025
Source payment records
ENBREL
Normalized: enbrel
Biological Amgen Inc. $25.63 1 2025
Source payment records
Actemra
Normalized: actemra
Biological Genentech USA, Inc. $18.81 1 2025
Source payment records
STRENSIQ
Normalized: strensiq
Biological Alexion Pharmaceuticals, Inc. $17.92 1 2025
Source payment records
HYALGAN
Normalized: hyalgan
Device Fidia Pharma USA Inc. $14.72 1 2025
Source payment records
Quzyttir
Normalized: quzyttir
Drug TerSera Therapeutics LLC $14.32 1 2025
Source payment records
BENLYSTA
Normalized: benlysta
Biological GlaxoSmithKline, LLC. $13.93 1 2025
Source payment records
OFEV
Normalized: ofev
Drug Boehringer Ingelheim Pharmaceuticals, Inc. $13.86 1 2025
Source payment records
KEVZARA
Normalized: kevzara
Biological GENZYME CORPORATION $13.49 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
ENBREL
enbrel
2025 Enbrel 2024 32
Beneficiary count suppressed
exact normalized Medicare Part D
OTEZLA
otezla
2025 Otezla 2024 26
Beneficiary count suppressed
exact normalized Medicare Part D
RINVOQ
rinvoq
2025 Rinvoq 2024 88
Beneficiary count suppressed
exact normalized Medicare Part D
TAVNEOS
tavneos
2025 Tavneos 2024 23
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
88 suppressed by CMS
ABBVIE INC.
Exact reporting entity; no affiliate inference
2025 SYNTHROID
open payments reported associated product
CMS Open Payments — General Payments
10655 supporting records · 4881 recipient NPIs · example record 1201352636
Synthroid · 2024
Exact normalized brand match · 1 Part D row
18 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
32 suppressed by CMS
Amgen Inc.
Exact reporting entity; no affiliate inference
2025 OTEZLA
open payments reported associated product
CMS Open Payments — General Payments
177267 supporting records · 48600 recipient NPIs · example record 1226871616
Otezla · 2024
Exact normalized brand match · 1 Part D row
26 suppressed by CMS
Amgen Inc.
Exact reporting entity; no affiliate inference
2025 TAVNEOS
open payments reported associated product
CMS Open Payments — General Payments
21404 supporting records · 7606 recipient NPIs · example record 1226871817
Tavneos · 2024
Exact normalized brand match · 1 Part D row
23 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
PrednisonePrednisone353126
MethotrexateMethotrexate Sodium27676
Hydroxychloroquine SulfateHydroxychloroquine Sulfate26771
Enbrel SureclickEtanercept16825
Alendronate SodiumAlendronate Sodium13945
Tramadol HclTramadol Hcl13318
MeloxicamMeloxicam11943
GabapentinGabapentin11026
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen10520
AllopurinolAllopurinol9831
RinvoqUpadacitinib88suppressed
Duloxetine HclDuloxetine Hcl8121
CelecoxibCelecoxib6713
OmeprazoleOmeprazole6721
Humira(Cf) PenAdalimumab66suppressed
Atorvastatin CalciumAtorvastatin Calcium6121
SulfasalazineSulfasalazine5813
Zolpidem TartrateZolpidem Tartrate49suppressed
Amlodipine BesylateAmlodipine Besylate4615
Mycophenolate MofetilMycophenolate Mofetil44suppressed
LisinoprilLisinopril4315
Trazodone HclTrazodone Hcl37suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl34suppressed
Levothyroxine SodiumLevothyroxine Sodium34suppressed
LeflunomideLeflunomide3311
Oxycodone HclOxycodone Hcl33suppressed
EnbrelEtanercept32suppressed
Tizanidine HclTizanidine Hcl32suppressed
Xeljanz XrTofacitinib Citrate32suppressed
Orencia ClickjectAbatacept31suppressed
AzathioprineAzathioprine30suppressed
CarvedilolCarvedilol30suppressed
Triamcinolone AcetonideTriamcinolone Acetonide30suppressed
Cimzia (2 Pack)Certolizumab Pegol29suppressed
Sulfasalazine DrSulfasalazine29suppressed
PregabalinPregabalin27suppressed
MethocarbamolMethocarbamol26suppressed
OtezlaApremilast26suppressed
Folic AcidFolic Acid25suppressed
Losartan PotassiumLosartan Potassium24suppressed
Enbrel MiniEtanercept23suppressed
TavneosAvacopan23suppressed
ColchicineColchicine20suppressed
SimvastatinSimvastatin19suppressed
AtenololAtenolol18suppressed
FamotidineFamotidine18suppressed
FurosemideFurosemide18suppressed
HydrocortisoneHydrocortisone18suppressed
SynthroidLevothyroxine Sodium18suppressed
Cevimeline HclCevimeline Hcl17suppressed
Taltz AutoinjectorIxekizumab17suppressed
Escitalopram OxalateEscitalopram Oxalate16suppressed
Fluoxetine HclFluoxetine Hcl16suppressed
Propranolol HclPropranolol Hcl16suppressed
Montelukast SodiumMontelukast Sodium15suppressed
AcyclovirAcyclovir14suppressed
Bupropion Hcl SrBupropion Hcl14suppressed
IbuprofenIbuprofen14suppressed
Metformin HclMetformin Hcl14suppressed
Clobetasol PropionateClobetasol Propionate13suppressed
EtodolacEtodolac13suppressed
SpironolactoneSpironolactone13suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine12suppressed
FebuxostatFebuxostat12suppressed
Humira(Cf)Adalimumab12suppressed
Metoprolol SuccinateMetoprolol Succinate12suppressed
Morphine Sulfate ErMorphine Sulfate12suppressed
Rosuvastatin CalciumRosuvastatin Calcium12suppressed
ChlorthalidoneChlorthalidone11suppressed
ClonazepamClonazepam11suppressed
SavellaMilnacipran Hcl11suppressed

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 $1,461.86 · 67 records Amgen Inc. Actemra, BENLYSTA, Bimzelx, COSENTYX, ENBREL, EVENITY, HYALGAN, HYRIMOZ, KEVZARA, KRYSTEXXA, OFEV, OTEZLA, PROLIA, Quzyttir, RINVOQ, SAPHNELO, SKYRIZI, STRENSIQ, TAVNEOS, TREMFYA, UPLIZNA, XELJANZ 5
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