Healthcare provider profile · identity verified

Steven Christopher Barton, PA-C, MMSC

Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant|Medical · ATLANTA, GA · NPI 1295849644

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 Steven Christopher Barton, PA-C, MMSC received $3,081.33 in general payments during 2025 across 85 reported records.

ViiV Healthcare Company accounted for 49.0% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 30 associated products.

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

Gilead Sciences, 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 Biktarvy as an associated drug or biological on 8065 records involving 2759 distinct recipient NPIs. Public Medicare Part D data also shows 322 claims for Biktarvy by this doctor in 2024.

Gilead Sciences, 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 Descovy as an associated drug or biological on 2032 records involving 589 distinct recipient NPIs. Public Medicare Part D data also shows 40 claims for Descovy by this doctor in 2024.

Merck Sharp & Dohme LLC reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported ISENTRESS as an associated drug or biological on 37 records involving 24 distinct recipient NPIs. Public Medicare Part D data also shows 12 claims for Isentress by this doctor in 2024.

Merck Sharp & Dohme LLC reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported PIFELTRO as an associated drug or biological on 7921 records involving 2912 distinct recipient NPIs. Public Medicare Part D data also shows 35 claims for Pifeltro by this doctor in 2024.

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

Payment overview · 2025

General Payments

$3,081.33

85 reported records · 17 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
ViiV Healthcare Company Unresolved — no canonical attribution shown $1,509.9149.0%232025
Gilead Sciences, Inc. Unresolved — no canonical attribution shown $607.7019.7%202025
Ferring Pharmaceuticals Inc. Unresolved — no canonical attribution shown $99.993.2%42025
Merck Sharp & Dohme LLC Unresolved — no canonical attribution shown $99.263.2%42025
PFIZER INC. Unresolved — no canonical attribution shown $86.192.8%32025
Astellas Pharma US Inc Unresolved — no canonical attribution shown $84.722.8%42025
Melinta Therapeutics, LLC Unresolved — no canonical attribution shown $76.822.5%32025
Aimmune Therapeutics, Inc. Unresolved — no canonical attribution shown $73.682.4%32025
Napo Pharmaceuticals Inc Unresolved — no canonical attribution shown $67.482.2%32025
Insmed, Inc. Unresolved — no canonical attribution shown $60.912.0%22025
ABBVIE INC. Unresolved — no canonical attribution shown $57.891.9%42025
Paratek Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $53.171.7%32025
CSL Behring Unresolved — no canonical attribution shown $50.311.6%22025
Theratechnologies Inc. Unresolved — no canonical attribution shown $48.871.6%22025
Cumberland Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $40.351.3%22025
CorMedix Inc. Unresolved — no canonical attribution shown $38.091.2%22025
La Jolla Pharmaceutical Company Unresolved — no canonical attribution shown $25.990.8%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$2,146.3182
Travel and Lodging$935.023

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
DOVATO
Normalized: dovato
Drug ViiV Healthcare Company $115.55 4 2025
Source payment records
APRETUDE
Normalized: apretude
Drug ViiV Healthcare Company $100.23 6 2025
Source payment records
REBYOTA
Normalized: rebyota
Biological Ferring Pharmaceuticals Inc. $99.99 4 2025
Source payment records
CABENUVA
Normalized: cabenuva
Drug ViiV Healthcare Company $98.18 4 2025
Source payment records
CUTAQUIG
Normalized: cutaquig
Biological PFIZER INC. $86.19 3 2025
Source payment records
OCTAGAM IMMUNE GLOBULIN (HUMAN)
Normalized: octagam immune globulin human
Drug PFIZER INC. $86.19 3 2025
Source payment records
PANZYGA
Normalized: panzyga
Biological PFIZER INC. $86.19 3 2025
Source payment records
Cresemba
Normalized: cresemba
Drug Astellas Pharma US Inc $84.72 4 2025
Source payment records
PIFELTRO
Normalized: pifeltro
Drug Merck Sharp & Dohme LLC $82.16 3 2025
Source payment records
Kimyrsa
Normalized: kimyrsa
Drug Melinta Therapeutics, LLC $76.82 3 2025
Source payment records
Rezzayo
Normalized: rezzayo
Drug Melinta Therapeutics, LLC $76.82 3 2025
Source payment records
VOWST
Normalized: vowst
Biological Aimmune Therapeutics, Inc. $73.68 3 2025
Source payment records
CAPVAXIVE
Normalized: capvaxive
Biological Merck Sharp & Dohme LLC $68.66 3 2025
Source payment records
Mytesi
Normalized: mytesi
Drug Napo Pharmaceuticals Inc $67.48 3 2025
Source payment records
Arikayce
Normalized: arikayce
Drug Insmed, Inc. $60.91 2 2025
Source payment records
Biktarvy
Normalized: biktarvy
Drug Gilead Sciences, Inc. $58.24 2 2025
Source payment records
AVYCAZ
Normalized: avycaz
Drug ABBVIE INC. $57.89 4 2025
Source payment records
DALVANCE
Normalized: dalvance
Drug ABBVIE INC. $57.89 4 2025
Source payment records
EMBLAVEO
Normalized: emblaveo
Drug ABBVIE INC. $57.89 4 2025
Source payment records
NUZYRA
Normalized: nuzyra
Drug Paratek Pharmaceuticals, Inc. $53.17 3 2025
Source payment records
Hizentra
Normalized: hizentra
Biological CSL Behring $50.31 2 2025
Source payment records
EGRIFTA
Normalized: egrifta
Drug Theratechnologies Inc. $48.87 2 2025
Source payment records
TROGARZO
Normalized: trogarzo
Drug Theratechnologies Inc. $48.87 2 2025
Source payment records
Orbactiv
Normalized: orbactiv
Drug Melinta Therapeutics, LLC $46.71 2 2025
Source payment records
VIBATIV
Normalized: vibativ
Drug Cumberland Pharmaceuticals, Inc. $40.35 2 2025
Source payment records
DEFENCATH
Normalized: defencath
Drug CorMedix Inc. $38.09 2 2025
Source payment records
RUKOBIA
Normalized: rukobia
Drug ViiV Healthcare Company $33.24 1 2025
Source payment records
ZEVTERA
Normalized: zevtera
Drug La Jolla Pharmaceutical Company $25.99 1 2025
Source payment records
GARDASIL 9
Normalized: gardasil 9
Biological Merck Sharp & Dohme LLC $17.10 1 2025
Source payment records
TEFLARO
Normalized: teflaro
Drug ABBVIE INC. $14.58 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
Biktarvy
biktarvy
2025 Biktarvy 2024 322 exact normalized Medicare Part D
PIFELTRO
pifeltro
2025 Pifeltro 2024 35
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
Gilead Sciences, Inc.
Exact reporting entity; no affiliate inference
2025 Biktarvy
open payments reported associated product
CMS Open Payments — General Payments
8065 supporting records · 2759 recipient NPIs · example record 1234350766
Biktarvy · 2024
Exact normalized brand match · 1 Part D row
322 31
Gilead Sciences, Inc.
Exact reporting entity; no affiliate inference
2025 Descovy
open payments reported associated product
CMS Open Payments — General Payments
2032 supporting records · 589 recipient NPIs · example record 1234351196
Descovy · 2024
Exact normalized brand match · 1 Part D row
40 suppressed by CMS
Merck Sharp & Dohme LLC
Exact reporting entity; no affiliate inference
2025 ISENTRESS
open payments reported associated product
CMS Open Payments — General Payments
37 supporting records · 24 recipient NPIs · example record 1238003286
Isentress · 2024
Exact normalized brand match · 1 Part D row
12 suppressed by CMS
Merck Sharp & Dohme LLC
Exact reporting entity; no affiliate inference
2025 PIFELTRO
open payments reported associated product
CMS Open Payments — General Payments
7921 supporting records · 2912 recipient NPIs · example record 1237992198
Pifeltro · 2024
Exact normalized brand match · 1 Part D row
35 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
BiktarvyBictegrav/Emtricit/Tenofov Ala32231
GenvoyaElviteg/Cob/Emtri/Tenof Alafen11112
TriumeqAbacavir/Dolutegravir/Lamivudi50suppressed
TivicayDolutegravir Sodium43suppressed
DescovyEmtricitabine/Tenofov Alafenam40suppressed
PifeltroDoravirine35suppressed
PrezistaDarunavir28suppressed
ValacyclovirValacyclovir Hcl25suppressed
SymtuzaDarunavir/Cob/Emtri/Tenof Alaf19suppressed
DarunavirDarunavir17suppressed
OdefseyEmtricitab/Rilpiviri/Tenof Ala16suppressed
LamivudineLamivudine14suppressed
Egrifta SvTesamorelin Acetate13suppressed
EtravirineEtravirine12suppressed
IsentressRaltegravir Potassium12suppressed
ClonazepamClonazepam11suppressed
Doxycycline HyclateDoxycycline Hyclate11suppressed
JulucaDolutegravir/Rilpivirine11suppressed

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 $3,081.33 · 85 records ViiV Healthcare Company APRETUDE, AVYCAZ, Arikayce, Biktarvy, CABENUVA, CAPVAXIVE, CUTAQUIG, Cresemba, DALVANCE, DEFENCATH, DOVATO, EGRIFTA, EMBLAVEO, GARDASIL 9, Hizentra, Kimyrsa, Mytesi, NUZYRA, OCTAGAM IMMUNE GLOBULIN (HUMAN), Orbactiv, PANZYGA, PIFELTRO, REBYOTA, RUKOBIA, Rezzayo, TEFLARO, TROGARZO, VIBATIV, VOWST, ZEVTERA 4
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