Healthcare provider profile · identity verified

Marissa L Parrish, APRN

Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Gerontology · CLEARWATER, FL · NPI 1861186389

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 Marissa L Parrish, APRN received $663.70 in general payments during 2025 across 13 reported records.

Eisai Inc. accounted for 35.4% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 12 associated products.

ABBVIE 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 CREON as an associated drug or biological on 91561 records involving 20616 distinct recipient NPIs. Public Medicare Part D data also shows 34 claims for Creon by this doctor in 2024.

ABBVIE 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 LINZESS as an associated drug or biological on 87954 records involving 21815 distinct recipient NPIs. Public Medicare Part D data also shows 25 claims for Linzess by this doctor in 2024.

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

Payment overview · 2025

General Payments

$663.70

13 reported records · 11 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
Eisai Inc. Unresolved — no canonical attribution shown $234.8535.4%22025
Amgen Inc. Unresolved — no canonical attribution shown $136.3720.6%12025
Janssen Biotech, Inc. Unresolved — no canonical attribution shown $83.9912.7%12025
PFIZER INC. Unresolved — no canonical attribution shown $37.745.7%22025
Lundbeck LLC Unresolved — no canonical attribution shown $32.254.9%12025
Celltrion USA Inc. Unresolved — no canonical attribution shown $27.334.1%12025
ABBVIE INC. Unresolved — no canonical attribution shown $25.433.8%12025
Takeda Pharmaceuticals U.S.A., Inc. Unresolved — no canonical attribution shown $24.473.7%12025
Phathom Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $23.363.5%12025
Grifols USA, LLC Unresolved — no canonical attribution shown $19.212.9%12025
Lilly USA, LLC Unresolved — no canonical attribution shown $18.702.8%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$579.7112
Education$83.991

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
Leqembi
Normalized: leqembi
Drug Eisai Inc. $234.85 2 2025
Source payment records
EVENITY
Normalized: evenity
Biological Amgen Inc. $136.37 1 2025
Source payment records
VELSIPITY
Normalized: velsipity
Drug PFIZER INC. $37.74 2 2025
Source payment records
XELJANZ
Normalized: xeljanz
Drug PFIZER INC. $37.74 2 2025
Source payment records
VYEPTI
Normalized: vyepti
Biological Lundbeck LLC $32.25 1 2025
Source payment records
VEGZELMA
Normalized: vegzelma
Biological Celltrion USA Inc. $27.33 1 2025
Source payment records
RINVOQ
Normalized: rinvoq
Biological ABBVIE INC. $25.43 1 2025
Source payment records
SKYRIZI
Normalized: skyrizi
Biological ABBVIE INC. $25.43 1 2025
Source payment records
ENTYVIO
Normalized: entyvio
Biological Takeda Pharmaceuticals U.S.A., Inc. $24.47 1 2025
Source payment records
VOQUEZNA
Normalized: voquezna
Drug Phathom Pharmaceuticals, Inc. $23.36 1 2025
Source payment records
Gamunex-C
Normalized: gamunex c
Biological Grifols USA, LLC $19.21 1 2025
Source payment records
OMVOH
Normalized: omvoh
Drug Lilly USA, LLC $18.70 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
ABBVIE INC.
Exact reporting entity; no affiliate inference
2025 CREON
open payments reported associated product
CMS Open Payments — General Payments
91561 supporting records · 20616 recipient NPIs · example record 1201352608
Creon · 2024
Exact normalized brand match · 1 Part D row
34 12
ABBVIE INC.
Exact reporting entity; no affiliate inference
2025 LINZESS
open payments reported associated product
CMS Open Payments — General Payments
87954 supporting records · 21815 recipient NPIs · example record 1201352608
Linzess · 2024
Exact normalized brand match · 1 Part D row
25 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
OmeprazoleOmeprazole21489
Pantoprazole SodiumPantoprazole Sodium17870
Sod Sulf-Potass Sulf-Mag SulfSodium, Potassium,mag Sulfates154153
Esomeprazole MagnesiumEsomeprazole Magnesium5123
FamotidineFamotidine4925
CreonLipase/Protease/Amylase3412
Dicyclomine HclDicyclomine Hcl3422
ClenpiqSod Picosulf/Mag Ox/Citric Ac2827
Ondansetron OdtOndansetron2814
CholestyramineCholestyramine (With Sugar)2611
LinzessLinaclotide25suppressed
Dexlansoprazole DrDexlansoprazole22suppressed
MesalamineMesalamine19suppressed
SutabSod Sulf/Pot Chloride/Mag Sulf1717
Diphenoxylate-AtropineDiphenoxylate Hcl/Atropine15suppressed
Rabeprazole SodiumRabeprazole Sodium15suppressed
SucralfateSucralfate15suppressed
LansoprazoleLansoprazole14suppressed
Colestipol HclColestipol Hcl13suppressed
Budesonide DrBudesonide12suppressed
UrsodiolUrsodiol12suppressed
Vancomycin HclVancomycin Hcl12suppressed
Gavilyte-GPeg3350/Sod Sulf,bicarb,cl/Kcl1111

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 $663.70 · 13 records Eisai Inc. ENTYVIO, EVENITY, Gamunex-C, Leqembi, OMVOH, RINVOQ, SKYRIZI, VEGZELMA, VELSIPITY, VOQUEZNA, VYEPTI, XELJANZ 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