Healthcare provider profile · identity verified

Edward K Ryter, MD

Allopathic & Osteopathic Physicians|Internal Medicine · SOUTH HADLEY, MA · NPI 1497744213

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 Edward K Ryter, MD received $23.67 in general payments during 2025 across 1 reported records.

E.R. Squibb & Sons, L.L.C. accounted for 100.0% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 1 associated product.

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

E.R. Squibb & Sons, L.L.C. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported ELIQUIS as an associated drug or biological on 27956 records involving 14870 distinct recipient NPIs. Public Medicare Part D data also shows 124 claims for Eliquis by this doctor in 2024.

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

Payment overview · 2025

General Payments

$23.67

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
E.R. Squibb & Sons, L.L.C. Unresolved — no canonical attribution shown $23.67100.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$23.671

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
ELIQUIS
Normalized: eliquis
Drug E.R. Squibb & Sons, L.L.C. $23.67 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
ELIQUIS
eliquis
2025 Eliquis 2024 124 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
E.R. Squibb & Sons, L.L.C.
Exact reporting entity; no affiliate inference
2025 ELIQUIS
open payments reported associated product
CMS Open Payments — General Payments
27956 supporting records · 14870 recipient NPIs · example record 1184377713
Eliquis · 2024
Exact normalized brand match · 1 Part D row
124 21

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 Calcium419116
Amlodipine BesylateAmlodipine Besylate34283
LisinoprilLisinopril26372
Levothyroxine SodiumLevothyroxine Sodium15133
OmeprazoleOmeprazole14739
Losartan PotassiumLosartan Potassium14538
Escitalopram OxalateEscitalopram Oxalate14035
EliquisApixaban12421
SimvastatinSimvastatin11727
HydrochlorothiazideHydrochlorothiazide11431
Metformin HclMetformin Hcl11233
Metoprolol SuccinateMetoprolol Succinate11129
Tamsulosin HclTamsulosin Hcl9621
ValsartanValsartan8723
TrulicityDulaglutide82suppressed
GabapentinGabapentin7520
ClonazepamClonazepam7411
LorazepamLorazepam7416
Amlodipine-ValsartanAmlodipine Besylate/Valsartan6615
Montelukast SodiumMontelukast Sodium6312
CarvedilolCarvedilol6017
Tramadol HclTramadol Hcl6012
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide5913
FamotidineFamotidine5814
AllopurinolAllopurinol5514
FurosemideFurosemide5515
Metoprolol TartrateMetoprolol Tartrate5415
Pantoprazole SodiumPantoprazole Sodium5414
Fluoxetine HclFluoxetine Hcl5312
Oxycodone HclOxycodone Hcl53suppressed
Zolpidem TartrateZolpidem Tartrate5111
Pravastatin SodiumPravastatin Sodium5013
Sertraline HclSertraline Hcl5014
Albuterol Sulfate HfaAlbuterol Sulfate4919
Pioglitazone HclPioglitazone Hcl4714
Trazodone HclTrazodone Hcl4715
Breo ElliptaFluticasone/Vilanterol46suppressed
FinasterideFinasteride45suppressed
Metformin Hcl ErMetformin Hcl45suppressed
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril4313
Fluticasone PropionateFluticasone Propionate4318
JardianceEmpagliflozin41suppressed
Rosuvastatin CalciumRosuvastatin Calcium3913
Bupropion XlBupropion Hcl32suppressed
Wixela InhubFluticasone Propion/Salmeterol31suppressed
AlprazolamAlprazolam30suppressed
Citalopram HbrCitalopram Hydrobromide30suppressed
Quetiapine FumarateQuetiapine Fumarate29suppressed
GlipizideGlipizide28suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide26suppressed
PregabalinPregabalin25suppressed
Duloxetine HclDuloxetine Hcl24suppressed
JanuviaSitagliptin Phosphate24suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog24suppressed
ChlorthalidoneChlorthalidone23suppressed
AtenololAtenolol22suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav2121
CarisoprodolCarisoprodol21suppressed
FarxigaDapagliflozin Propanediol21suppressed
Triamcinolone AcetonideTriamcinolone Acetonide2113
MeloxicamMeloxicam20suppressed
MounjaroTirzepatide20suppressed
PrednisonePrednisone2019
Ventolin HfaAlbuterol Sulfate20suppressed
Labetalol HclLabetalol Hcl19suppressed
Ultra-Fine Mini Pen NeedlePen Needle, Diabetic19suppressed
Venlafaxine Hcl ErVenlafaxine Hcl19suppressed
MirtazapineMirtazapine18suppressed
OzempicSemaglutide18suppressed
SucralfateSucralfate18suppressed
AripiprazoleAripiprazole17suppressed
TorsemideTorsemide17suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine16suppressed
Ipratropium BromideIpratropium Bromide16suppressed
Tresiba Flextouch U-200Insulin Degludec16suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide16suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog15suppressed
EzetimibeEzetimibe15suppressed
Paroxetine HclParoxetine Hcl15suppressed
BaclofenBaclofen14suppressed
CelecoxibCelecoxib14suppressed
Diclofenac SodiumDiclofenac Sodium14suppressed
NitroglycerinNitroglycerin14suppressed
Sodium ChlorideSodium Chloride Irrig Solution14suppressed
Tizanidine HclTizanidine Hcl14suppressed
Amitriptyline HclAmitriptyline Hcl13suppressed
CephalexinCephalexin13suppressed
Methylphenidate HclMethylphenidate Hcl13suppressed
OxycontinOxycodone Hcl13suppressed
SpironolactoneSpironolactone13suppressed
V-Go 30Sub-Q Insulin Device, 30 Unit13suppressed
Doxycycline HyclateDoxycycline Hyclate1211
SynthroidLevothyroxine Sodium12suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid12suppressed
ValacyclovirValacyclovir Hcl12suppressed
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr11suppressed
AzithromycinAzithromycin11suppressed
Doxazosin MesylateDoxazosin Mesylate11suppressed
HaloperidolHaloperidol11suppressed
NadololNadolol11suppressed
RisperidoneRisperidone11suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim1111

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 $23.67 · 1 records E.R. Squibb & Sons, L.L.C. ELIQUIS 1
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