Healthcare provider profile · identity verified

Michael I Anstead, MD

Allopathic & Osteopathic Physicians|Internal Medicine · LEXINGTON, KY · NPI 1245259035

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 I Anstead, MD received $149.65 in general payments during 2025 across 3 reported records.

Digestive Care, Inc. accounted for 46.3% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 2 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Nucala, Pertzye.

Digestive Care, 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 Pertzye as an associated drug or biological on 417 records involving 327 distinct recipient NPIs. Public Medicare Part D data also shows 14 claims for Pertzye 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 NUCALA as an associated drug or biological on 100127 records involving 16970 distinct recipient NPIs. Public Medicare Part D data also shows 24 claims for Nucala 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 20 claims for Trelegy Ellipta by this doctor in 2024.

VERTEX PHARMACEUTICALS INCORPORATED reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported TRIKAFTA as an associated drug or biological on 29 records involving 20 distinct recipient NPIs. Public Medicare Part D data also shows 179 claims for Trikafta by this doctor in 2024.

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

Payment overview · 2025

General Payments

$149.65

3 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
Digestive Care, Inc. Unresolved — no canonical attribution shown $69.3046.3%12025
VERTEX PHARMACEUTICALS INCORPORATED Unresolved — no canonical attribution shown $66.0544.1%12025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $14.309.6%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$149.653

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
Pertzye
Normalized: pertzye
Drug Digestive Care, Inc. $69.30 1 2025
Source payment records
NUCALA
Normalized: nucala
Biological GlaxoSmithKline, LLC. $14.30 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
NUCALA
nucala
2025 Nucala 2024 24
Beneficiary count suppressed
exact normalized Medicare Part D
Pertzye
pertzye
2025 Pertzye 2024 14
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
Digestive Care, Inc.
Exact reporting entity; no affiliate inference
2025 Pertzye
open payments reported associated product
CMS Open Payments — General Payments
417 supporting records · 327 recipient NPIs · example record 1173586522
Pertzye · 2024
Exact normalized brand match · 1 Part D row
14 suppressed by CMS
GlaxoSmithKline, LLC.
Exact reporting entity; no affiliate inference
2025 NUCALA
open payments reported associated product
CMS Open Payments — General Payments
100127 supporting records · 16970 recipient NPIs · example record 1190332378
Nucala · 2024
Exact normalized brand match · 1 Part D row
24 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
20 suppressed by CMS
VERTEX PHARMACEUTICALS INCORPORATED
Exact reporting entity; no affiliate inference
2025 TRIKAFTA
open payments reported associated product
CMS Open Payments — General Payments
29 supporting records · 20 recipient NPIs · example record 1213788219
Trikafta · 2024
Exact normalized brand match · 1 Part D row
179 28

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
TrikaftaElexacaftor/Tezacaftor/Ivacaft17928
AzithromycinAzithromycin17741
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim12631
PrednisonePrednisone8430
Montelukast SodiumMontelukast Sodium8021
Pantoprazole SodiumPantoprazole Sodium7018
Albuterol Sulfate HfaAlbuterol Sulfate6917
GabapentinGabapentin6522
Valganciclovir HclValganciclovir Hcl6117
Metoprolol TartrateMetoprolol Tartrate5811
CreonLipase/Protease/Amylase5312
Fluticasone PropionateFluticasone Propionate4420
FamotidineFamotidine4114
ColistimethateColistin (Colistimethate Na)40suppressed
Rosuvastatin CalciumRosuvastatin Calcium3511
Amlodipine BesylateAmlodipine Besylate3312
ZenpepLipase/Protease/Amylase33suppressed
TacrolimusTacrolimus3212
Breo ElliptaFluticasone/Vilanterol31suppressed
Levalbuterol Tartrate HfaLevalbuterol Tartrate29suppressed
FurosemideFurosemide2713
OmeprazoleOmeprazole27suppressed
Oxycodone HclOxycodone Hcl2712
Tamsulosin HclTamsulosin Hcl27suppressed
EliquisApixaban25suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium25suppressed
MirtazapineMirtazapine2414
NucalaMepolizumab24suppressed
Potassium ChloridePotassium Chloride24suppressed
ArikayceAmikacin Liposomal/Neb.Accessr23suppressed
Citalopram HbrCitalopram Hydrobromide21suppressed
CaystonAztreonam Lysine20suppressed
PosaconazolePosaconazole20suppressed
Sertraline HclSertraline Hcl20suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter20suppressed
Ondansetron OdtOndansetron1914
Prazosin HclPrazosin Hcl19suppressed
RifabutinRifabutin19suppressed
Fludrocortisone AcetateFludrocortisone Acetate18suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog18suppressed
Levothyroxine SodiumLevothyroxine Sodium18suppressed
Ultra-Fine Short Pen NeedlePen Needle, Diabetic18suppressed
Duloxetine HclDuloxetine Hcl17suppressed
FenofibrateFenofibrate Nanocrystallized17suppressed
Gamunex-CImmune Globul G/Gly/Iga Avg 4617suppressed
LevofloxacinLevofloxacin1715
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride16suppressed
Propranolol HclPropranolol Hcl16suppressed
SymbicortBudesonide/Formoterol Fumarate16suppressed
Ventolin HfaAlbuterol Sulfate16suppressed
CefdinirCefdinir1513
FluconazoleFluconazole15suppressed
Metoclopramide HclMetoclopramide Hcl15suppressed
PrevymisLetermovir15suppressed
AcyclovirAcyclovir14suppressed
Cyclosporine ModifiedCyclosporine, Modified14suppressed
Midodrine HclMidodrine Hcl14suppressed
PertzyeLipase/Protease/Amylase14suppressed
Sumatriptan SuccinateSumatriptan Succinate14suppressed
Bupropion XlBupropion Hcl13suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl13suppressed
Hydralazine HclHydralazine Hcl13suppressed
Mycophenolic AcidMycophenolate Sodium13suppressed
Quetiapine FumarateQuetiapine Fumarate13suppressed
BreynaBudesonide/Formoterol Fumarate12suppressed
Enoxaparin SodiumEnoxaparin Sodium12suppressed
Pravastatin SodiumPravastatin Sodium12suppressed
SpironolactoneSpironolactone12suppressed
Ultra-Fine Original Pen NeedlePen Needle, Diabetic12suppressed
UrsodiolUrsodiol12suppressed
XolairOmalizumab12suppressed
Combivent RespimatIpratropium/Albuterol Sulfate11suppressed
MounjaroTirzepatide11suppressed
Tramadol HclTramadol 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 $149.65 · 3 records Digestive Care, Inc. NUCALA, Pertzye 4
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