Healthcare provider profile · identity verified

Ryan Chang, NP

Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Psychiatric/Mental Health · ELMONT, NY · NPI 1366029605

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 Ryan Chang, NP received $19.47 in general payments during 2025 across 1 reported records.

Kerecis Limited accounted for 100.0% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 2 associated products.

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

Payment overview · 2025

General Payments

$19.47

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
Kerecis Limited Unresolved — no canonical attribution shown $19.47100.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$19.471

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
Kerecis GraftGuide
Normalized: kerecis graftguide
Device Kerecis Limited $19.47 1 2025
Source payment records
Kerecis SurgiClose
Normalized: kerecis surgiclose
Device Kerecis Limited $19.47 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.

None of this doctor’s payer companies has same-entity product evidence that passes the publication threshold. The site does not infer company ownership, affiliates, or generic manufacturers.

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
Quetiapine FumarateQuetiapine Fumarate14515
Benztropine MesylateBenztropine Mesylate13417
Bupropion XlBupropion Hcl12212
Zolpidem TartrateZolpidem Tartrate11313
ClonazepamClonazepam8612
RisperidoneRisperidone81suppressed
Sertraline HclSertraline Hcl7111
Hydroxyzine PamoateHydroxyzine Pamoate5912
OlanzapineOlanzapine55suppressed
HaloperidolHaloperidol50suppressed
Olanzapine OdtOlanzapine50suppressed
LamotrigineLamotrigine49suppressed
Haloperidol DecanoateHaloperidol Decanoate48suppressed
Trazodone HclTrazodone Hcl48suppressed
MirtazapineMirtazapine47suppressed
AripiprazoleAripiprazole45suppressed
Citalopram HbrCitalopram Hydrobromide44suppressed
Escitalopram OxalateEscitalopram Oxalate43suppressed
Venlafaxine Hcl ErVenlafaxine Hcl41suppressed
Paroxetine HclParoxetine Hcl37suppressed
Hydroxyzine HclHydroxyzine Hcl32suppressed
Divalproex SodiumDivalproex Sodium31suppressed
Bupropion Hcl SrBupropion Hcl27suppressed
Amitriptyline HclAmitriptyline Hcl26suppressed
LorazepamLorazepam24suppressed
Duloxetine HclDuloxetine Hcl22suppressed
Fluphenazine HclFluphenazine Hcl18suppressed
GabapentinGabapentin18suppressed
Doxepin HclDoxepin Hcl16suppressed
Atomoxetine HclAtomoxetine Hcl15suppressed
Invega SustennaPaliperidone Palmitate13suppressed
AtivanLorazepam12suppressed
ClozapineClozapine12suppressed
Donepezil HclDonepezil Hcl12suppressed
Trifluoperazine HclTrifluoperazine Hcl12suppressed
AlprazolamAlprazolam11suppressed
Desvenlafaxine Succinate ErDesvenlafaxine Succinate11suppressed
DiazepamDiazepam11suppressed

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 $19.47 · 1 records Kerecis Limited Kerecis GraftGuide, Kerecis SurgiClose
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