Healthcare provider profile · identity verified

David Michael Whittiker, MD

Allopathic & Osteopathic Physicians|Family Medicine · WICHITA FALLS, TX · NPI 1568462901

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 Michael Whittiker, MD received $614.57 in general payments during 2025 across 41 reported records.

PFIZER INC. accounted for 26.9% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 25 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Eliquis, Kerendia, Mounjaro, Ozempic.

Astellas Pharma US 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 Myrbetriq as an associated drug or biological on 16 records involving 16 distinct recipient NPIs. Public Medicare Part D data also shows 14 claims for Myrbetriq by this doctor in 2024.

Bayer Healthcare Pharmaceuticals 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 Kerendia as an associated drug or biological on 138674 records involving 48458 distinct recipient NPIs. Public Medicare Part D data also shows 28 claims for Kerendia 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 TRELEGY ELLIPTA as an associated drug or biological on 131532 records involving 37148 distinct recipient NPIs. Public Medicare Part D data also shows 81 claims for Trelegy Ellipta by this doctor in 2024.

Lilly USA, 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 JARDIANCE as an associated drug or biological on 47708 records involving 23833 distinct recipient NPIs. Public Medicare Part D data also shows 34 claims for Jardiance by this doctor in 2024.

Lilly USA, 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 MOUNJARO as an associated drug or biological on 186719 records involving 66436 distinct recipient NPIs. Public Medicare Part D data also shows 68 claims for Mounjaro by this doctor in 2024.

Lilly USA, 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 TRULICITY as an associated drug or biological on 71 records involving 57 distinct recipient NPIs. Public Medicare Part D data also shows 208 claims for Trulicity 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 157 claims for Ozempic by this doctor in 2024.

PFIZER 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 ELIQUIS as an associated drug or biological on 87112 records involving 36032 distinct recipient NPIs. Public Medicare Part D data also shows 245 claims for Eliquis by this doctor in 2024.

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

Payment overview · 2025

General Payments

$614.57

41 reported records · 12 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
PFIZER INC. Unresolved — no canonical attribution shown $165.1626.9%122025
Novo Nordisk Inc Unresolved — no canonical attribution shown $155.1625.2%102025
Lilly USA, LLC Unresolved — no canonical attribution shown $94.5415.4%62025
Astellas Pharma US Inc Unresolved — no canonical attribution shown $41.476.8%22025
Bayer Healthcare Pharmaceuticals Inc. Unresolved — no canonical attribution shown $38.696.3%22025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $27.644.5%22025
Amgen Inc. Unresolved — no canonical attribution shown $20.183.3%12025
Dexcom, Inc. Unresolved — no canonical attribution shown $18.493.0%12025
Abbott Laboratories Unresolved — no canonical attribution shown $16.352.7%12025
Exact Sciences Corporation Unresolved — no canonical attribution shown $15.572.5%12025
IBSA Pharma Inc. Unresolved — no canonical attribution shown $13.982.3%12025
Phathom Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $7.341.2%22025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$594.3540
Education$20.221

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
NURTEC ODT
Normalized: nurtec odt
Drug PFIZER INC. $139.12 10 2025
Source payment records
ZAVZPRET
Normalized: zavzpret
Drug PFIZER INC. $117.25 9 2025
Source payment records
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $102.58 6 2025
Source payment records
Rybelsus
Normalized: rybelsus
Drug Novo Nordisk Inc $102.58 6 2025
Source payment records
MOUNJARO
Normalized: mounjaro
Drug Lilly USA, LLC $94.54 6 2025
Source payment records
ZEPBOUND
Normalized: zepbound
Drug Lilly USA, LLC $94.54 6 2025
Source payment records
Wegovy
Normalized: wegovy
Drug Novo Nordisk Inc $52.58 4 2025
Source payment records
Veozah
Normalized: veozah
Drug Astellas Pharma US Inc $41.47 2 2025
Source payment records
Kerendia
Normalized: kerendia
Drug Bayer Healthcare Pharmaceuticals Inc. $38.69 2 2025
Source payment records
AREXVY
Normalized: arexvy
Biological GlaxoSmithKline, LLC. $27.64 2 2025
Source payment records
SHINGRIX
Normalized: shingrix
Biological GlaxoSmithKline, LLC. $27.64 2 2025
Source payment records
ABRYSVO
Normalized: abrysvo
Biological PFIZER INC. $26.04 2 2025
Source payment records
COMIRNATY
Normalized: comirnaty
Biological PFIZER INC. $26.04 2 2025
Source payment records
PREVNAR 20
Normalized: prevnar 20
Biological PFIZER INC. $26.04 2 2025
Source payment records
ELIQUIS
Normalized: eliquis
Drug PFIZER INC. $21.87 1 2025
Source payment records
KRYSTEXXA
Normalized: krystexxa
Biological Amgen Inc. $20.18 1 2025
Source payment records
Dexcom G6 Transmitter
Normalized: dexcom g6 transmitter
Medical Supply Dexcom, Inc. $18.49 1 2025
Source payment records
FREESTYLE LIBRE 3
Normalized: freestyle libre 3
Device Abbott Laboratories $16.35 1 2025
Source payment records
Cologuard Collection Kit
Normalized: cologuard collection kit
Device Exact Sciences Corporation $15.57 1 2025
Source payment records
PENMENVY
Normalized: penmenvy
Biological GlaxoSmithKline, LLC. $14.07 1 2025
Source payment records
Flector
Normalized: flector
Drug IBSA Pharma Inc. $13.98 1 2025
Source payment records
Licart
Normalized: licart
Drug IBSA Pharma Inc. $13.98 1 2025
Source payment records
Tirosint
Normalized: tirosint
Drug IBSA Pharma Inc. $13.98 1 2025
Source payment records
BEXSERO
Normalized: bexsero
Biological GlaxoSmithKline, LLC. $13.57 1 2025
Source payment records
VOQUEZNA
Normalized: voquezna
Drug Phathom Pharmaceuticals, Inc. $7.34 2 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
ELIQUIS
eliquis
2025 Eliquis 2024 245 exact normalized Medicare Part D
Kerendia
kerendia
2025 Kerendia 2024 28
Beneficiary count suppressed
exact normalized Medicare Part D
MOUNJARO
mounjaro
2025 Mounjaro 2024 68 exact normalized Medicare Part D
Ozempic
ozempic
2025 Ozempic 2024 157 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
Astellas Pharma US Inc
Exact reporting entity; no affiliate inference
2025 Myrbetriq
open payments reported associated product
CMS Open Payments — General Payments
16 supporting records · 16 recipient NPIs · example record 1238599014
Myrbetriq · 2024
Exact normalized brand match · 1 Part D row
14 suppressed by CMS
Bayer Healthcare Pharmaceuticals Inc.
Exact reporting entity; no affiliate inference
2025 Kerendia
open payments reported associated product
CMS Open Payments — General Payments
138674 supporting records · 48458 recipient NPIs · example record 1225434663
Kerendia · 2024
Exact normalized brand match · 1 Part D row
28 suppressed by CMS
GlaxoSmithKline, LLC.
Exact reporting entity; no affiliate inference
2025 TRELEGY ELLIPTA
open payments reported associated product
CMS Open Payments — General Payments
131532 supporting records · 37148 recipient NPIs · example record 1190332369
Trelegy Ellipta · 2024
Exact normalized brand match · 1 Part D row
81 15
Lilly USA, LLC
Exact reporting entity; no affiliate inference
2025 JARDIANCE
open payments reported associated product
CMS Open Payments — General Payments
47708 supporting records · 23833 recipient NPIs · example record 1186464557
Jardiance · 2024
Exact normalized brand match · 1 Part D row
34 13
Lilly USA, LLC
Exact reporting entity; no affiliate inference
2025 MOUNJARO
open payments reported associated product
CMS Open Payments — General Payments
186719 supporting records · 66436 recipient NPIs · example record 1186464455
Mounjaro · 2024
Exact normalized brand match · 1 Part D row
68 14
Lilly USA, LLC
Exact reporting entity; no affiliate inference
2025 TRULICITY
open payments reported associated product
CMS Open Payments — General Payments
71 supporting records · 57 recipient NPIs · example record 1186464601
Trulicity · 2024
Exact normalized brand match · 1 Part D row
208 29
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
157 28
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 ELIQUIS
open payments reported associated product
CMS Open Payments — General Payments
87112 supporting records · 36032 recipient NPIs · example record 1228794063
Eliquis · 2024
Exact normalized brand match · 1 Part D row
245 46

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
Atorvastatin CalciumAtorvastatin Calcium872241
Levothyroxine SodiumLevothyroxine Sodium752151
Amlodipine BesylateAmlodipine Besylate564166
GabapentinGabapentin514124
Losartan PotassiumLosartan Potassium446122
LisinoprilLisinopril406114
Pantoprazole SodiumPantoprazole Sodium397105
OmeprazoleOmeprazole32089
Metoprolol SuccinateMetoprolol Succinate31688
Metformin HclMetformin Hcl30294
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen28958
Tamsulosin HclTamsulosin Hcl27069
AllopurinolAllopurinol25972
EliquisApixaban24546
AlprazolamAlprazolam22947
Rosuvastatin CalciumRosuvastatin Calcium22767
SimvastatinSimvastatin22562
TrulicityDulaglutide20829
Tramadol HclTramadol Hcl20255
HydrochlorothiazideHydrochlorothiazide19854
MeloxicamMeloxicam18252
FurosemideFurosemide16256
OzempicSemaglutide15728
Sertraline HclSertraline Hcl15337
Potassium ChloridePotassium Chloride14847
Albuterol Sulfate HfaAlbuterol Sulfate14542
Montelukast SodiumMontelukast Sodium14240
Duloxetine HclDuloxetine Hcl13237
FinasterideFinasteride13235
CarvedilolCarvedilol12736
Zolpidem TartrateZolpidem Tartrate12734
Metoprolol TartrateMetoprolol Tartrate12039
Trazodone HclTrazodone Hcl11629
ChlorthalidoneChlorthalidone11130
Pravastatin SodiumPravastatin Sodium11033
Doxazosin MesylateDoxazosin Mesylate10825
Escitalopram OxalateEscitalopram Oxalate10629
Citalopram HbrCitalopram Hydrobromide10127
Olmesartan MedoxomilOlmesartan Medoxomil10024
Cyclobenzaprine HclCyclobenzaprine Hcl9820
LorazepamLorazepam9625
EzetimibeEzetimibe9428
Lantus SolostarInsulin Glargine,hum.Rec.Anlog9029
Acetaminophen-CodeineAcetaminophen With Codeine8917
ClopidogrelClopidogrel Bisulfate8925
Alendronate SodiumAlendronate Sodium8628
Fluoxetine HclFluoxetine Hcl8524
Tizanidine HclTizanidine Hcl8317
CelecoxibCelecoxib8225
Trelegy ElliptaFluticasone/Umeclidin/Vilanter8115
Bupropion XlBupropion Hcl7825
SpironolactoneSpironolactone7519
Venlafaxine Hcl ErVenlafaxine Hcl7419
Amiodarone HclAmiodarone Hcl6913
MounjaroTirzepatide6814
FenofibrateFenofibrate Nanocrystallized6513
EstradiolEstradiol6423
Donepezil HclDonepezil Hcl6116
Glipizide ErGlipizide6117
Oxybutynin Chloride ErOxybutynin Chloride5811
TemazepamTemazepam58suppressed
Testosterone CypionateTestosterone Cypionate5017
GemfibrozilGemfibrozil4913
Ropinirole HclRopinirole Hcl4817
Buspirone HclBuspirone Hcl4613
Ipratropium BromideIpratropium Bromide4613
BaclofenBaclofen44suppressed
Nifedipine ErNifedipine4413
Ultra-Fine Short Pen NeedlePen Needle, Diabetic4420
Fluticasone PropionateFluticasone Propionate4314
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril41suppressed
JanuviaSitagliptin Phosphate4112
Promethazine HclPromethazine Hcl41suppressed
Metformin Hcl ErMetformin Hcl4014
PregabalinPregabalin4011
Solifenacin SuccinateSolifenacin Succinate4011
TelmisartanTelmisartan4013
FarxigaDapagliflozin Propanediol39suppressed
NabumetoneNabumetone39suppressed
Tresiba Flextouch U-100Insulin Degludec39suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide3812
Paroxetine HclParoxetine Hcl38suppressed
XareltoRivaroxaban38suppressed
AripiprazoleAripiprazole37suppressed
FamotidineFamotidine3712
Humalog Kwikpen U-100Insulin Lispro3714
Ondansetron HclOndansetron Hcl3715
ValsartanValsartan3614
PrednisonePrednisone3523
Bisoprolol FumarateBisoprolol Fumarate34suppressed
JardianceEmpagliflozin3413
MethocarbamolMethocarbamol34suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide3311
TopiramateTopiramate32suppressed
Toujeo SolostarInsulin Glargine,hum.Rec.Anlog32suppressed
MirtazapineMirtazapine3111
SymbicortBudesonide/Formoterol Fumarate31suppressed
FenofibrateFenofibrate30suppressed
Hydroxychloroquine SulfateHydroxychloroquine Sulfate30suppressed
RamiprilRamipril30suppressed
DiazepamDiazepam29suppressed
Dicyclomine HclDicyclomine Hcl28suppressed
KerendiaFinerenone28suppressed
Pioglitazone HclPioglitazone Hcl28suppressed
AtenololAtenolol27suppressed
IbuprofenIbuprofen27suppressed
Meclizine HclMeclizine Hcl27suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine26suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl26suppressed
SucralfateSucralfate26suppressed
AzithromycinAzithromycin2422
Benazepril HclBenazepril Hcl24suppressed
Breo ElliptaFluticasone/Vilanterol24suppressed
ClonazepamClonazepam24suppressed
FenofibrateFenofibrate,micronized24suppressed
Raloxifene HclRaloxifene Hcl24suppressed
Ciprofloxacin HclCiprofloxacin Hcl2321
HydrocortisoneHydrocortisone23suppressed
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride23suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim2318
Fenofibric AcidFenofibric Acid (Choline)22suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol22suppressed
NateglinideNateglinide22suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl22suppressed
LovastatinLovastatin21suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst21suppressed
SynthroidLevothyroxine Sodium21suppressed
Ventolin HfaAlbuterol Sulfate21suppressed
Warfarin SodiumWarfarin Sodium21suppressed
Clonidine HclClonidine Hcl20suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium20suppressed
LevetiracetamLevetiracetam20suppressed
Propranolol HclPropranolol Hcl20suppressed
Breztri AerosphereBudesonide/Glycopyr/Formoterol19suppressed
GlipizideGlipizide19suppressed
Spiriva HandihalerTiotropium Bromide19suppressed
Spiriva RespimatTiotropium Bromide19suppressed
Amitriptyline HclAmitriptyline Hcl18suppressed
Dextroamphetamine-Amphet ErDextroamphetamine/Amphetamine18suppressed
Hydrocodone-IbuprofenHydrocodone/Ibuprofen18suppressed
IrbesartanIrbesartan18suppressed
Omega-3 Acid Ethyl EstersOmega-3 Acid Ethyl Esters18suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid18suppressed
Nano 2nd Gen Pen NeedlePen Needle, Diabetic17suppressed
Wixela InhubFluticasone Propion/Salmeterol17suppressed
Enalapril MaleateEnalapril Maleate16suppressed
GlimepirideGlimepiride16suppressed
Triamcinolone AcetonideTriamcinolone Acetonide16suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide16suppressed
ZonisamideZonisamide16suppressed
Diphenoxylate-AtropineDiphenoxylate Hcl/Atropine15suppressed
LantusInsulin Glargine,hum.Rec.Anlog15suppressed
Quetiapine FumarateQuetiapine Fumarate15suppressed
RisperidoneRisperidone15suppressed
Ammonium LactateAmmonium Lactate14suppressed
BumetanideBumetanide14suppressed
CholestyramineCholestyramine (With Sugar)14suppressed
Diclofenac SodiumDiclofenac Sodium14suppressed
Hydralazine HclHydralazine Hcl14suppressed
LevemirInsulin Detemir14suppressed
Levemir FlexpenInsulin Detemir14suppressed
MyrbetriqMirabegron14suppressed
NitroglycerinNitroglycerin14suppressed
Terbinafine HclTerbinafine Hcl1412
CefdinirCefdinir13suppressed
CefuroximeCefuroxime Axetil1312
Clotrimazole-BetamethasoneClotrimazole/Betamethasone Dip13suppressed
Desvenlafaxine Succinate ErDesvenlafaxine Succinate13suppressed
DigoxinDigoxin13suppressed
Ibandronate SodiumIbandronate Sodium13suppressed
LansoprazoleLansoprazole13suppressed
NystatinNystatin13suppressed
Oxybutynin ChlorideOxybutynin Chloride13suppressed
Venlafaxine HclVenlafaxine Hcl13suppressed
ZaleplonZaleplon13suppressed
AcarboseAcarbose12suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1211
Bisoprolol-HydrochlorothiazideBisoprolol/Hydrochlorothiazide12suppressed
GlyburideGlyburide12suppressed
Incruse ElliptaUmeclidinium Bromide12suppressed
Mometasone FuroateMometasone Furoate12suppressed
PrimidonePrimidone12suppressed
RepaglinideRepaglinide12suppressed
AmoxicillinAmoxicillin1111
FluconazoleFluconazole11suppressed
Novolog FlexpenInsulin Aspart11suppressed
Oxycodone HclOxycodone Hcl11suppressed
Pen NeedlePen Needle, Diabetic11suppressed
SotalolSotalol Hcl11suppressed
Stiolto RespimatTiotropium Br/Olodaterol Hcl11suppressed
Verapamil ErVerapamil 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 $614.57 · 41 records PFIZER INC. ABRYSVO, AREXVY, BEXSERO, COMIRNATY, Cologuard Collection Kit, Dexcom G6 Transmitter, ELIQUIS, FREESTYLE LIBRE 3, Flector, KRYSTEXXA, Kerendia, Licart, MOUNJARO, NURTEC ODT, Ozempic, PENMENVY, PREVNAR 20, Rybelsus, SHINGRIX, Tirosint, VOQUEZNA, Veozah, Wegovy, ZAVZPRET, ZEPBOUND 8
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