Healthcare provider profile · identity verified

Michael W Semelka, DO

Allopathic & Osteopathic Physicians|Family Medicine · MT PLEASANT, PA · NPI 1639112840

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 W Semelka, DO received $13.89 in general payments during 2025 across 1 reported records.

Novo Nordisk Inc accounted for 100.0% 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: Ozempic, Rybelsus.

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 96 claims for Ozempic 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 Rybelsus as an associated drug or biological on 161257 records involving 55409 distinct recipient NPIs. Public Medicare Part D data also shows 23 claims for Rybelsus by this doctor in 2024.

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

Payment overview · 2025

General Payments

$13.89

1 reported records · 1 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
Novo Nordisk Inc Unresolved — no canonical attribution shown $13.89100.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$13.891

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
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $13.89 1 2025
Source payment records
Rybelsus
Normalized: rybelsus
Drug Novo Nordisk Inc $13.89 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
Ozempic
ozempic
2025 Ozempic 2024 96 exact normalized Medicare Part D
Rybelsus
rybelsus
2025 Rybelsus 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
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
96 18
Novo Nordisk Inc
Exact reporting entity; no affiliate inference
2025 Rybelsus
open payments reported associated product
CMS Open Payments — General Payments
161257 supporting records · 55409 recipient NPIs · example record 1188130076
Rybelsus · 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
Atorvastatin CalciumAtorvastatin Calcium268105
Levothyroxine SodiumLevothyroxine Sodium22081
Amlodipine BesylateAmlodipine Besylate20066
Metformin HclMetformin Hcl16551
LisinoprilLisinopril16167
Pantoprazole SodiumPantoprazole Sodium13449
SimvastatinSimvastatin10842
Metoprolol TartrateMetoprolol Tartrate10429
JardianceEmpagliflozin9617
OzempicSemaglutide9618
Losartan PotassiumLosartan Potassium9539
HydrochlorothiazideHydrochlorothiazide8831
FurosemideFurosemide8627
GabapentinGabapentin8331
OmeprazoleOmeprazole8033
AllopurinolAllopurinol7526
LorazepamLorazepam7318
Tamsulosin HclTamsulosin Hcl7331
XareltoRivaroxaban6614
Metoprolol SuccinateMetoprolol Succinate5923
Sertraline HclSertraline Hcl5720
Rosuvastatin CalciumRosuvastatin Calcium5419
Trazodone HclTrazodone Hcl5413
Escitalopram OxalateEscitalopram Oxalate5320
Pravastatin SodiumPravastatin Sodium4115
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide3813
Albuterol Sulfate HfaAlbuterol Sulfate3717
Citalopram HbrCitalopram Hydrobromide3713
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen3714
AlprazolamAlprazolam36suppressed
ClopidogrelClopidogrel Bisulfate3615
Metformin Hcl ErMetformin Hcl3611
ShingrixVaricella-Zoster Ge/As01b/Pf3328
Lantus SolostarInsulin Glargine,hum.Rec.Anlog3211
Duloxetine HclDuloxetine Hcl30suppressed
Oxycodone HclOxycodone Hcl29suppressed
PregabalinPregabalin28suppressed
TradjentaLinagliptin28suppressed
FamotidineFamotidine27suppressed
Potassium ChloridePotassium Chloride26suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide25suppressed
PrednisonePrednisone2517
Fluticasone PropionateFluticasone Propionate2412
Montelukast SodiumMontelukast Sodium23suppressed
RybelsusSemaglutide23suppressed
Buspirone HclBuspirone Hcl22suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol22suppressed
Armour ThyroidThyroid,pork21suppressed
Meclizine HclMeclizine Hcl21suppressed
Ropinirole HclRopinirole Hcl21suppressed
JanuviaSitagliptin Phosphate20suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter20suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide19suppressed
Ventolin HfaAlbuterol Sulfate19suppressed
EliquisApixaban18suppressed
Ondansetron OdtOndansetron18suppressed
Oxybutynin Chloride ErOxybutynin Chloride18suppressed
AtenololAtenolol17suppressed
LevetiracetamLevetiracetam17suppressed
Paroxetine HclParoxetine Hcl17suppressed
TrulicityDulaglutide17suppressed
AzithromycinAzithromycin1616
Doxycycline HyclateDoxycycline Hyclate1614
Terazosin HclTerazosin Hcl16suppressed
Alendronate SodiumAlendronate Sodium15suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl15suppressed
EzetimibeEzetimibe15suppressed
FinasterideFinasteride15suppressed
SpironolactoneSpironolactone15suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog14suppressed
Clonidine HclClonidine Hcl14suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl14suppressed
MeloxicamMeloxicam14suppressed
Tramadol HclTramadol Hcl14suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1311
BrilintaTicagrelor13suppressed
Ciprofloxacin HclCiprofloxacin Hcl1312
IbuprofenIbuprofen13suppressed
Labetalol HclLabetalol Hcl13suppressed
Olmesartan-HydrochlorothiazideOlmesartan/Hydrochlorothiazide13suppressed
Venlafaxine Hcl ErVenlafaxine Hcl13suppressed
BaclofenBaclofen12suppressed
CarvedilolCarvedilol12suppressed
CelecoxibCelecoxib12suppressed
Divalproex SodiumDivalproex Sodium12suppressed
Humalog Kwikpen U-100Insulin Lispro12suppressed
Klor-Con M20Potassium Chloride12suppressed
Morphine Sulfate ErMorphine Sulfate12suppressed
NaproxenNaproxen12suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen12suppressed
SynthroidLevothyroxine Sodium12suppressed
Ultra-Fine Mini Pen NeedlePen Needle, Diabetic12suppressed
Warfarin SodiumWarfarin Sodium12suppressed
Wixela InhubFluticasone Propion/Salmeterol12suppressed
Zolpidem TartrateZolpidem Tartrate12suppressed
Benazepril HclBenazepril Hcl11suppressed
Enalapril MaleateEnalapril Maleate11suppressed
PremarinEstrogens, Conjugated11suppressed
TelmisartanTelmisartan11suppressed
Toujeo SolostarInsulin Glargine,hum.Rec.Anlog11suppressed
ValsartanValsartan11suppressed
Xultophy 100-3.6Insulin Degludec/Liraglutide11suppressed

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 $13.89 · 1 records Novo Nordisk Inc Ozempic, Rybelsus 2
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