Healthcare provider profile · identity verified

Michael Shane Richardson, P.A.

Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant|Medical · NORMAN, OK · NPI 1225179849

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 Michael Shane Richardson, P.A. received $103.69 in general payments during 2025 across 5 reported records.

Sumitomo Pharma America, Inc. accounted for 70.6% of that reported general-payment amount.

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

AstraZeneca Pharmaceuticals LP reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported FARXIGA as an associated drug or biological on 106133 records involving 42906 distinct recipient NPIs. Public Medicare Part D data also shows 22 claims for Farxiga by this doctor in 2024.

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

Payment overview · 2025

General Payments

$103.69

5 reported records · 3 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
Sumitomo Pharma America, Inc. Unresolved — no canonical attribution shown $73.1970.6%32025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $16.5616.0%12025
Exact Sciences Corporation Unresolved — no canonical attribution shown $13.9413.4%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$103.695

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
GEMTESA
Normalized: gemtesa
Drug Sumitomo Pharma America, Inc. $73.19 3 2025
Source payment records
AIRSUPRA
Normalized: airsupra
Drug AstraZeneca Pharmaceuticals LP $16.56 1 2025
Source payment records
Cologuard Collection Kit
Normalized: cologuard collection kit
Device Exact Sciences Corporation $13.94 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.

Paying companyPayment yearDrug reported by same entityOpen Payments evidencePart DClaimsBeneficiaries
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 FARXIGA
open payments reported associated product
CMS Open Payments — General Payments
106133 supporting records · 42906 recipient NPIs · example record 1206131362
Farxiga · 2024
Exact normalized brand match · 1 Part D row
22 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
Rosuvastatin CalciumRosuvastatin Calcium389131
GabapentinGabapentin372101
Atorvastatin CalciumAtorvastatin Calcium335112
Losartan PotassiumLosartan Potassium29688
Amlodipine BesylateAmlodipine Besylate27588
LisinoprilLisinopril25975
Albuterol Sulfate HfaAlbuterol Sulfate25370
MeloxicamMeloxicam20455
Levothyroxine SodiumLevothyroxine Sodium18256
Tizanidine HclTizanidine Hcl17957
Montelukast SodiumMontelukast Sodium17256
CarvedilolCarvedilol16252
Pantoprazole SodiumPantoprazole Sodium16252
Metformin HclMetformin Hcl15652
Duloxetine HclDuloxetine Hcl14249
Trelegy ElliptaFluticasone/Umeclidin/Vilanter12533
PregabalinPregabalin12125
PrednisonePrednisone12069
Potassium ChloridePotassium Chloride11836
FurosemideFurosemide11734
OmeprazoleOmeprazole11741
AzithromycinAzithromycin10868
AlprazolamAlprazolam9912
Hydroxyzine HclHydroxyzine Hcl9638
Tamsulosin HclTamsulosin Hcl9228
Lantus SolostarInsulin Glargine,hum.Rec.Anlog8826
Trazodone HclTrazodone Hcl8829
Alendronate SodiumAlendronate Sodium8730
HydrochlorothiazideHydrochlorothiazide8427
Metoprolol SuccinateMetoprolol Succinate8124
JardianceEmpagliflozin7823
Tramadol HclTramadol Hcl7820
CelecoxibCelecoxib7618
Fluticasone PropionateFluticasone Propionate7637
Acetaminophen-CodeineAcetaminophen With Codeine7226
ClopidogrelClopidogrel Bisulfate7223
EliquisApixaban7121
AllopurinolAllopurinol6618
Fluoxetine HclFluoxetine Hcl6419
Quetiapine FumarateQuetiapine Fumarate6121
Metoprolol TartrateMetoprolol Tartrate5924
Buspirone HclBuspirone Hcl5612
Cyclobenzaprine HclCyclobenzaprine Hcl5620
GlipizideGlipizide5522
NaproxenNaproxen5422
Breztri AerosphereBudesonide/Glycopyr/Formoterol5320
IbuprofenIbuprofen5312
Triamcinolone AcetonideTriamcinolone Acetonide5115
Terbinafine HclTerbinafine Hcl4920
Zolpidem TartrateZolpidem Tartrate49suppressed
Hydroxyzine PamoateHydroxyzine Pamoate47suppressed
Citalopram HbrCitalopram Hydrobromide4412
Sertraline HclSertraline Hcl4320
Dropsafe Prep PadsAlcohol Antiseptic Pads4213
OzempicSemaglutide40suppressed
EstradiolEstradiol39suppressed
Amitriptyline HclAmitriptyline Hcl35suppressed
Promethazine HclPromethazine Hcl3512
SimvastatinSimvastatin34suppressed
Diclofenac SodiumDiclofenac Sodium3313
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide33suppressed
Pravastatin SodiumPravastatin Sodium3311
Bupropion XlBupropion Hcl32suppressed
FamotidineFamotidine32suppressed
TorsemideTorsemide32suppressed
MethocarbamolMethocarbamol30suppressed
Propranolol HclPropranolol Hcl29suppressed
AripiprazoleAripiprazole28suppressed
Ondansetron HclOndansetron Hcl28suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav2718
Venlafaxine Hcl ErVenlafaxine Hcl27suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst2623
Ciprofloxacin HclCiprofloxacin Hcl2521
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide25suppressed
TopiramateTopiramate25suppressed
Escitalopram OxalateEscitalopram Oxalate24suppressed
SpironolactoneSpironolactone2411
Clonidine HclClonidine Hcl23suppressed
EntrestoSacubitril/Valsartan23suppressed
MounjaroTirzepatide23suppressed
Ventolin HfaAlbuterol Sulfate23suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog22suppressed
FarxigaDapagliflozin Propanediol22suppressed
Droplet Pen NeedlePen Needle, Diabetic21suppressed
Novolog FlexpenInsulin Aspart21suppressed
Olmesartan MedoxomilOlmesartan Medoxomil21suppressed
Oxybutynin ChlorideOxybutynin Chloride21suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl21suppressed
AtenololAtenolol20suppressed
ClotrimazoleClotrimazole2011
LovastatinLovastatin20suppressed
Bupropion Hcl SrBupropion Hcl19suppressed
Carbidopa-LevodopaCarbidopa/Levodopa19suppressed
NystatinNystatin19suppressed
Ultra-Fine Mini Pen NeedlePen Needle, Diabetic19suppressed
ClonazepamClonazepam18suppressed
EzetimibeEzetimibe18suppressed
IbuIbuprofen17suppressed
Metformin Hcl ErMetformin Hcl17suppressed
MyrbetriqMirabegron17suppressed
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril16suppressed
FluconazoleFluconazole16suppressed
Hydralazine HclHydralazine Hcl16suppressed
Metoclopramide HclMetoclopramide Hcl15suppressed
MirtazapineMirtazapine15suppressed
CephalexinCephalexin1412
Combivent RespimatIpratropium/Albuterol Sulfate14suppressed
NitroglycerinNitroglycerin14suppressed
Ropinirole HclRopinirole Hcl14suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid14suppressed
ChlorthalidoneChlorthalidone13suppressed
Donepezil HclDonepezil Hcl13suppressed
Glipizide ErGlipizide13suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate13suppressed
Testosterone CypionateTestosterone Cypionate13suppressed
TrulicityDulaglutide13suppressed
Warfarin SodiumWarfarin Sodium13suppressed
DiazepamDiazepam12suppressed
DigoxinDigoxin12suppressed
LantusInsulin Glargine,hum.Rec.Anlog12suppressed
LorazepamLorazepam12suppressed
OlanzapineOlanzapine12suppressed
Soliqua 100-33Insulin Glargine/Lixisenatide12suppressed
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr11suppressed
Carbidopa-Levodopa ErCarbidopa/Levodopa11suppressed
Droplet Insulin SyringeSyringe And Needle,insulin,1ml11suppressed
Enalapril MaleateEnalapril Maleate11suppressed
Glipizide-MetforminGlipizide/Metformin Hcl11suppressed
Novolin RInsulin Regular, Human11suppressed
PhenobarbitalPhenobarbital11suppressed
Sumatriptan SuccinateSumatriptan Succinate11suppressed
XareltoRivaroxaban11suppressed

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 $103.69 · 5 records Sumitomo Pharma America, Inc. AIRSUPRA, Cologuard Collection Kit, GEMTESA 1
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