Healthcare provider profile · identity verified

Ryon Eugene Parker, MD

Allopathic & Osteopathic Physicians|Internal Medicine · LAS VEGAS, NV · NPI 1609001759

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 Ryon Eugene Parker, MD received $373.50 in general payments during 2025 across 14 reported records.

Novo Nordisk Inc accounted for 26.3% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 10 associated products.

Amgen 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 PROLIA as an associated drug or biological on 20867 records involving 11744 distinct recipient NPIs. Public Medicare Part D data also shows 22 claims for Prolia by this doctor in 2024.

Novartis Pharmaceuticals Corporation reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported XOLAIR as an associated drug or biological on 5293 records involving 2861 distinct recipient NPIs. Public Medicare Part D data also shows 18 claims for Xolair by this doctor in 2024.

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

Payment overview · 2025

General Payments

$373.50

14 reported records · 10 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 $98.0926.3%32025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $54.6314.6%22025
Phathom Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $48.7613.1%22025
Cleerly, Inc. Unresolved — no canonical attribution shown $47.8612.8%12025
Lucid Diagnostics Inc. Unresolved — no canonical attribution shown $29.077.8%12025
Gilead Sciences, Inc. Unresolved — no canonical attribution shown $23.856.4%12025
Amgen Inc. Unresolved — no canonical attribution shown $20.615.5%12025
Abbott Laboratories Unresolved — no canonical attribution shown $17.994.8%12025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $16.434.4%12025
Astellas Pharma US Inc Unresolved — no canonical attribution shown $16.214.3%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$373.5014

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 $98.09 3 2025
Source payment records
Rybelsus
Normalized: rybelsus
Drug Novo Nordisk Inc $63.14 2 2025
Source payment records
LEQVIO
Normalized: leqvio
Drug Novartis Pharmaceuticals Corporation $54.63 2 2025
Source payment records
VOQUEZNA
Normalized: voquezna
Drug Phathom Pharmaceuticals, Inc. $48.76 2 2025
Source payment records
Cleerly Labs
Normalized: cleerly labs
Device Cleerly, Inc. $47.86 1 2025
Source payment records
OTEZLA
Normalized: otezla
Drug Amgen Inc. $20.61 1 2025
Source payment records
REPATHA
Normalized: repatha
Biological Amgen Inc. $20.61 1 2025
Source payment records
FREESTYLE LIBRE 3
Normalized: freestyle libre 3
Device Abbott Laboratories $17.99 1 2025
Source payment records
AIRSUPRA
Normalized: airsupra
Drug AstraZeneca Pharmaceuticals LP $16.43 1 2025
Source payment records
Veozah
Normalized: veozah
Drug Astellas Pharma US Inc $16.21 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
Amgen Inc.
Exact reporting entity; no affiliate inference
2025 PROLIA
open payments reported associated product
CMS Open Payments — General Payments
20867 supporting records · 11744 recipient NPIs · example record 1226874448
Prolia · 2024
Exact normalized brand match · 1 Part D row
22 11
Novartis Pharmaceuticals Corporation
Exact reporting entity; no affiliate inference
2025 XOLAIR
open payments reported associated product
CMS Open Payments — General Payments
5293 supporting records · 2861 recipient NPIs · example record 1200005083
Xolair · 2024
Exact normalized brand match · 1 Part D row
18 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
MounjaroTirzepatide15126
Rosuvastatin CalciumRosuvastatin Calcium13345
Levothyroxine SodiumLevothyroxine Sodium8420
Metformin HclMetformin Hcl8029
Losartan PotassiumLosartan Potassium5815
Amlodipine BesylateAmlodipine Besylate5718
Tamsulosin HclTamsulosin Hcl5316
AzithromycinAzithromycin5138
Montelukast SodiumMontelukast Sodium4914
Pantoprazole SodiumPantoprazole Sodium4212
GabapentinGabapentin40suppressed
Duloxetine HclDuloxetine Hcl3812
LisinoprilLisinopril3712
Metoprolol TartrateMetoprolol Tartrate37suppressed
Diclofenac SodiumDiclofenac Sodium3516
Repatha SureclickEvolocumab35suppressed
SynthroidLevothyroxine Sodium35suppressed
Albuterol Sulfate HfaAlbuterol Sulfate3416
Sertraline HclSertraline Hcl31suppressed
Trazodone HclTrazodone Hcl2911
AllopurinolAllopurinol28suppressed
EliquisApixaban28suppressed
FurosemideFurosemide2812
Fluoxetine HclFluoxetine Hcl26suppressed
FamotidineFamotidine25suppressed
Metoprolol SuccinateMetoprolol Succinate25suppressed
ValacyclovirValacyclovir Hcl25suppressed
EdarbiAzilsartan Medoxomil24suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav2321
Atorvastatin CalciumAtorvastatin Calcium22suppressed
ProliaDenosumab2211
Evenity (2 Syringes)Romosozumab-Aqqg21suppressed
Meclizine HclMeclizine Hcl21suppressed
Bupropion HclBupropion Hcl20suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide20suppressed
OmeprazoleOmeprazole20suppressed
Praluent PenAlirocumab20suppressed
PrednisonePrednisone2016
Hydroxyzine HclHydroxyzine Hcl19suppressed
Ondansetron HclOndansetron Hcl1917
Pilocarpine HclPilocarpine Hcl18suppressed
XolairOmalizumab18suppressed
Ciprofloxacin HclCiprofloxacin Hcl1714
Breo ElliptaFluticasone/Vilanterol16suppressed
CarvedilolCarvedilol16suppressed
Metformin Hcl ErMetformin Hcl16suppressed
Potassium ChloridePotassium Chloride16suppressed
AlprazolamAlprazolam15suppressed
Amitriptyline HclAmitriptyline Hcl15suppressed
IbuprofenIbuprofen15suppressed
Orphenadrine Citrate ErOrphenadrine Citrate15suppressed
PaxlovidNirmatrelvir/Ritonavir1515
CephalexinCephalexin14suppressed
Dicyclomine HclDicyclomine Hcl14suppressed
Pravastatin SodiumPravastatin Sodium14suppressed
AnastrozoleAnastrozole13suppressed
Breztri AerosphereBudesonide/Glycopyr/Formoterol13suppressed
ProgesteroneProgesterone, Micronized13suppressed
SimvastatinSimvastatin13suppressed
Sumatriptan SuccinateSumatriptan Succinate13suppressed
Triamcinolone AcetonideTriamcinolone Acetonide13suppressed
TrulicityDulaglutide13suppressed
Wixela InhubFluticasone Propion/Salmeterol13suppressed
Bupropion XlBupropion Hcl12suppressed
Doxycycline HyclateDoxycycline Hyclate12suppressed
FinasterideFinasteride12suppressed
Ipratropium BromideIpratropium Bromide12suppressed
Quetiapine FumarateQuetiapine Fumarate12suppressed
Testosterone CypionateTestosterone Cypionate12suppressed
Zolpidem TartrateZolpidem Tartrate12suppressed
Ondansetron OdtOndansetron11suppressed
Pioglitazone HclPioglitazone Hcl11suppressed
PlavixClopidogrel Bisulfate11suppressed

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 $373.50 · 14 records Novo Nordisk Inc AIRSUPRA, Cleerly Labs, FREESTYLE LIBRE 3, LEQVIO, OTEZLA, Ozempic, REPATHA, Rybelsus, VOQUEZNA, Veozah 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