Healthcare provider profile · identity verified

Mark Lyon, MD

Allopathic & Osteopathic Physicians|Urology · EVERGREEN PARK, IL · NPI 1831300748

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 Mark Lyon, MD received $2,225.03 in general payments during 2025 across 79 reported records.

Olympus America Inc. accounted for 20.2% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 27 associated products.

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

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 43 claims for Myrbetriq by this doctor in 2024.

Sumitomo Pharma America, 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 GEMTESA as an associated drug or biological on 61692 records involving 22152 distinct recipient NPIs. Public Medicare Part D data also shows 59 claims for Gemtesa by this doctor in 2024.

Sumitomo Pharma America, 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 ORGOVYX as an associated drug or biological on 17129 records involving 6223 distinct recipient NPIs. Public Medicare Part D data also shows 15 claims for Orgovyx by this doctor in 2024.

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

Payment overview · 2025

General Payments

$2,225.03

79 reported records · 22 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
Olympus America Inc. Unresolved — no canonical attribution shown $450.5320.2%172025
Teleflex LLC Unresolved — no canonical attribution shown $441.8819.9%112025
ABBVIE INC. Unresolved — no canonical attribution shown $311.5714.0%112025
Calyxo, Inc. Unresolved — no canonical attribution shown $205.309.2%32025
Ferring Pharmaceuticals Inc. Unresolved — no canonical attribution shown $127.705.7%62025
Sumitomo Pharma America, Inc. Unresolved — no canonical attribution shown $111.955.0%42025
Blue Earth Diagnostics Unresolved — no canonical attribution shown $101.244.5%42025
UROGEN PHARMA, INC. Unresolved — no canonical attribution shown $98.414.4%42025
Endo USA, Inc. Unresolved — no canonical attribution shown $67.853.0%42025
TOLMAR, INC. Unresolved — no canonical attribution shown $31.861.4%22025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $30.781.4%12025
Antares Pharma, Inc. Unresolved — no canonical attribution shown $28.641.3%22025
PROGENICS PHARMACEUTICALS, INC. Unresolved — no canonical attribution shown $25.001.1%12025
Merck Sharp & Dohme LLC Unresolved — no canonical attribution shown $24.551.1%12025
Boston Scientific Corporation Unresolved — no canonical attribution shown $24.211.1%12025
BLUEWIND MEDICAL Unresolved — no canonical attribution shown $24.061.1%12025
MIMEDX Group, Inc. Unresolved — no canonical attribution shown $21.841.0%12025
IMMUNITYBIO, INC. Unresolved — no canonical attribution shown $21.100.9%12025
Verity Pharmaceuticals Inc. Unresolved — no canonical attribution shown $20.770.9%12025
Astellas Pharma US Inc Unresolved — no canonical attribution shown $19.480.9%12025
Myriad Genetic Laboratories, Inc. Unresolved — no canonical attribution shown $18.390.8%12025
Bayer Healthcare Pharmaceuticals Inc. Unresolved — no canonical attribution shown $17.920.8%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$2,225.0379

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
iTIND System
Normalized: itind system
Device Olympus America Inc. $450.53 17 2025
Source payment records
BARRIGEL
Normalized: barrigel
Device Teleflex LLC $336.08 8 2025
Source payment records
BOTOX
Normalized: botox
Biological ABBVIE INC. $286.21 10 2025
Source payment records
CVAC ASPIRATION SYSTEM
Normalized: cvac aspiration system
Device Calyxo, Inc. $205.30 3 2025
Source payment records
ADSTILADRIN
Normalized: adstiladrin
Biological Ferring Pharmaceuticals Inc. $127.70 6 2025
Source payment records
UROLIFT
Normalized: urolift
Device Teleflex LLC $105.80 3 2025
Source payment records
POSLUMA
Normalized: posluma
Drug Blue Earth Diagnostics $101.24 4 2025
Source payment records
ZUSDURI
Normalized: zusduri
Drug UROGEN PHARMA, INC. $98.41 4 2025
Source payment records
ORGOVYX
Normalized: orgovyx
Drug Sumitomo Pharma America, Inc. $82.93 3 2025
Source payment records
XIAFLEX
Normalized: xiaflex
Biological Endo USA, Inc. $67.85 4 2025
Source payment records
AVEED
Normalized: aveed
Biological Endo USA, Inc. $51.25 3 2025
Source payment records
ELIGARD
Normalized: eligard
Drug TOLMAR, INC. $31.86 2 2025
Source payment records
JATENZO
Normalized: jatenzo
Drug TOLMAR, INC. $31.86 2 2025
Source payment records
PLUVICTO
Normalized: pluvicto
Drug Novartis Pharmaceuticals Corporation $30.78 1 2025
Source payment records
GEMTESA
Normalized: gemtesa
Drug Sumitomo Pharma America, Inc. $29.02 1 2025
Source payment records
XYOSTED
Normalized: xyosted
Drug Antares Pharma, Inc. $28.64 2 2025
Source payment records
LILETTA
Normalized: liletta
Drug ABBVIE INC. $25.36 1 2025
Source payment records
PYLARIFY
Normalized: pylarify
Drug PROGENICS PHARMACEUTICALS, INC. $25.00 1 2025
Source payment records
KEYTRUDA
Normalized: keytruda
Biological Merck Sharp & Dohme LLC $24.55 1 2025
Source payment records
Axonics
Normalized: axonics
Device Boston Scientific Corporation $24.21 1 2025
Source payment records
REVI
Normalized: revi
Device BLUEWIND MEDICAL $24.06 1 2025
Source payment records
ANKTIVA
Normalized: anktiva
Drug IMMUNITYBIO, INC. $21.10 1 2025
Source payment records
Trelstar
Normalized: trelstar
Drug Verity Pharmaceuticals Inc. $20.77 1 2025
Source payment records
Xtandi
Normalized: xtandi
Drug Astellas Pharma US Inc $19.48 1 2025
Source payment records
PROLARIS
Normalized: prolaris
Device Myriad Genetic Laboratories, Inc. $18.39 1 2025
Source payment records
Nubeqa
Normalized: nubeqa
Drug Bayer Healthcare Pharmaceuticals Inc. $17.92 1 2025
Source payment records
Xofigo
Normalized: xofigo
Drug Bayer Healthcare Pharmaceuticals Inc. $17.92 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
GEMTESA
gemtesa
2025 Gemtesa 2024 59 exact normalized Medicare Part D
ORGOVYX
orgovyx
2025 Orgovyx 2024 15
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
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
43 12
Sumitomo Pharma America, Inc.
Exact reporting entity; no affiliate inference
2025 GEMTESA
open payments reported associated product
CMS Open Payments — General Payments
61692 supporting records · 22152 recipient NPIs · example record 1176593503
Gemtesa · 2024
Exact normalized brand match · 1 Part D row
59 14
Sumitomo Pharma America, Inc.
Exact reporting entity; no affiliate inference
2025 ORGOVYX
open payments reported associated product
CMS Open Payments — General Payments
17129 supporting records · 6223 recipient NPIs · example record 1176593507
Orgovyx · 2024
Exact normalized brand match · 1 Part D row
15 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
Tamsulosin HclTamsulosin Hcl366122
FinasterideFinasteride343104
GemtesaVibegron5914
MyrbetriqMirabegron4312
CephalexinCephalexin3933
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim3834
Oxybutynin Chloride ErOxybutynin Chloride3613
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst3023
SilodosinSilodosin2914
Tolterodine Tartrate ErTolterodine Tartrate27suppressed
Doxazosin MesylateDoxazosin Mesylate20suppressed
EstradiolEstradiol1712
Trospium ChlorideTrospium Chloride16suppressed
OrgovyxRelugolix15suppressed
Ciprofloxacin HclCiprofloxacin Hcl1412
Alfuzosin Hcl ErAlfuzosin Hcl13suppressed
Tolterodine TartrateTolterodine Tartrate12suppressed
DutasterideDutasteride11suppressed

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 $2,225.03 · 79 records Olympus America Inc. ADSTILADRIN, ANKTIVA, AVEED, Axonics, BARRIGEL, BOTOX, CVAC ASPIRATION SYSTEM, ELIGARD, GEMTESA, JATENZO, KEYTRUDA, LILETTA, Nubeqa, ORGOVYX, PLUVICTO, POSLUMA, PROLARIS, PYLARIFY, REVI, Trelstar, UROLIFT, XIAFLEX, XYOSTED, Xofigo, Xtandi, ZUSDURI, iTIND System 3
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