Healthcare provider profile · identity verified

Michael T. Sheehan, MD

Endocrinology · WESTON, WI · NPI 1730294240

Profile state: partd only 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

We did not find matching Open Payments records for this doctor in 2025.

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

Payment overview · 2025

General Payments

We did not find matching Open Payments records for this doctor in the selected program year.

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.

Analysis 1 · Payment-linked products

Products named in Open Payments records

No payment-linked product analysis is available because no matching General Payment records were found for the selected year.

Public prescribing for products named in payments

There is no explicit payment-product set available for a Part D comparison.

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.

There is no payer-company set available for this comparison.

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
Levothyroxine SodiumLevothyroxine Sodium641167
TrulicityDulaglutide22754
JardianceEmpagliflozin20257
Semglee (Yfgn) PenInsulin Glargine-Yfgn16446
Metformin HclMetformin Hcl16245
HydrocortisoneHydrocortisone15029
Alendronate SodiumAlendronate Sodium13541
TestosteroneTestosterone13326
Lantus SolostarInsulin Glargine,hum.Rec.Anlog13055
MethimazoleMethimazole11438
Novolog FlexpenInsulin Aspart10537
TeriparatideTeriparatide9920
GlimepirideGlimepiride9637
Metformin Hcl ErMetformin Hcl9537
Nano 2nd Gen Pen NeedlePen Needle, Diabetic8126
OzempicSemaglutide7917
Testosterone CypionateTestosterone Cypionate6311
Humalog Kwikpen U-100Insulin Lispro6126
SynthroidLevothyroxine Sodium5814
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog5215
Insulin Lispro Kwikpen U-100Insulin Lispro4615
CabergolineCabergoline4511
Ultra-Fine Mini Pen NeedlePen Needle, Diabetic4427
Insulin Aspart FlexpenInsulin Aspart4022
CalcitriolCalcitriol3813
Fludrocortisone AcetateFludrocortisone Acetate37suppressed
GlipizideGlipizide3614
NovologInsulin Aspart3517
FarxigaDapagliflozin Propanediol33suppressed
Glipizide ErGlipizide3212
Autoshield Duo Pen NeedlePen Needle,dual Safety,diabetc31suppressed
Tresiba Flextouch U-100Insulin Degludec31suppressed
Admelog SolostarInsulin Lispro29suppressed
MounjaroTirzepatide29suppressed
Levemir FlexpenInsulin Detemir28suppressed
Toujeo Max SolostarInsulin Glargine,hum.Rec.Anlog28suppressed
Ulticare Pen NeedlePen Needle, Diabetic27suppressed
Ultra-Fine Short Pen NeedlePen Needle, Diabetic2712
LisinoprilLisinopril26suppressed
LantusInsulin Glargine,hum.Rec.Anlog25suppressed
ForteoTeriparatide24suppressed
Insulin LisproInsulin Lispro24suppressed
Ultra-Fine Nano Pen NeedlePen Needle, Diabetic24suppressed
Cinacalcet HclCinacalcet Hcl23suppressed
Droplet Pen NeedlePen Needle, Diabetic23suppressed
Liothyronine SodiumLiothyronine Sodium23suppressed
PrednisonePrednisone23suppressed
FiaspInsulin Aspart (Niacinamide)22suppressed
HumalogInsulin Lispro22suppressed
Novolin RInsulin Regular, Human22suppressed
Omnipod 5 Dexg7g6 Pods (Gen 5)Insulin Pump Cart,auto,bt,g6/722suppressed
Solu-CortefHydrocortisone Sodium Succ/Pf21suppressed
Desmopressin AcetateDesmopressin Acetate20suppressed
Insulin AspartInsulin Aspart20suppressed
Toujeo SolostarInsulin Glargine,hum.Rec.Anlog19suppressed
Atorvastatin CalciumAtorvastatin Calcium18suppressed
Tresiba Flextouch U-200Insulin Degludec18suppressed
DexamethasoneDexamethasone1716
Fiasp FlextouchInsulin Aspart (Niacinamide)15suppressed
Pioglitazone HclPioglitazone Hcl15suppressed
Semglee (Yfgn)Insulin Glargine-Yfgn14suppressed
Armour ThyroidThyroid,pork13suppressed
Norditropin FlexproSomatropin13suppressed
Dropsafe Pen NeedlePen Needle, Diabetic, Safety12suppressed
Insulin SyringeSyringe-Needle,insulin,0.5 Ml12suppressed
Novolin NInsulin Nph Human Isophane12suppressed
Sure Comfort Pen NeedlePen Needle, Diabetic12suppressed
AdmelogInsulin Lispro11suppressed
Victoza 3-PakLiraglutide11suppressed

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
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