Healthcare provider profile · identity verified

Nathan S. Johnston

Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Psychiatry · SAN ANTONIO, TX · NPI 1619232113

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 Nathan S. Johnston received $221,219.28 in general payments during 2025 across 211 reported records.

Axsome Therapeutics, Inc. accounted for 50.3% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 4 associated products.

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

Janssen Pharmaceuticals, 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 SPRAVATO as an associated drug or biological on 43813 records involving 17025 distinct recipient NPIs. Public Medicare Part D data also shows 134 claims for Spravato by this doctor in 2024.

Janssen Scientific Affairs, 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 SPRAVATO as an associated drug or biological on 586 records involving 456 distinct recipient NPIs. Public Medicare Part D data also shows 134 claims for Spravato by this doctor in 2024.

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

Payment overview · 2025

General Payments

$221,219.28

211 reported records · 5 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
Axsome Therapeutics, Inc. Unresolved — no canonical attribution shown $111,272.1550.3%1082025
Janssen Pharmaceuticals, Inc Unresolved — no canonical attribution shown $108,613.2449.1%1002025
Brainsway USA INC Unresolved — no canonical attribution shown $1,107.370.5%12025
Janssen Scientific Affairs, LLC Unresolved — no canonical attribution shown $200.000.1%12025
E.R. Squibb & Sons, L.L.C. Unresolved — no canonical attribution shown $26.520.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Honoraria$97,625.0038
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$93,844.0022
Travel and Lodging$24,435.1469
Food and Beverage$5,115.1481
Consulting Fee$200.001

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
Auvelity
Normalized: auvelity
Drug Axsome Therapeutics, Inc. $111,272.15 108 2025
Source payment records
SPRAVATO
Normalized: spravato
Drug Janssen Pharmaceuticals, Inc, Janssen Scientific Affairs, LLC $108,813.24 101 2025
Source payment records
Deep TMS
Normalized: deep tms
Device Brainsway USA INC $1,107.37 1 2025
Source payment records
COBENFY
Normalized: cobenfy
Drug E.R. Squibb & Sons, L.L.C. $26.52 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
SPRAVATO
spravato
2025 Spravato 2024 134 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
Janssen Pharmaceuticals, Inc
Exact reporting entity; no affiliate inference
2025 SPRAVATO
open payments reported associated product
CMS Open Payments — General Payments
43813 supporting records · 17025 recipient NPIs · example record 1174223254
Spravato · 2024
Exact normalized brand match · 1 Part D row
134 13
Janssen Scientific Affairs, LLC
Exact reporting entity; no affiliate inference
2025 SPRAVATO
open payments reported associated product
CMS Open Payments — General Payments
586 supporting records · 456 recipient NPIs · example record 1174147619
Spravato · 2024
Exact normalized brand match · 1 Part D row
134 13

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
SpravatoEsketamine Hcl13413
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine27suppressed
ClonazepamClonazepam24suppressed
Fluoxetine HclFluoxetine Hcl20suppressed
Sertraline HclSertraline Hcl18suppressed
TrintellixVortioxetine Hydrobromide15suppressed
Bupropion XlBupropion Hcl13suppressed
AlprazolamAlprazolam12suppressed
Lithium Carbonate ErLithium Carbonate12suppressed
Trazodone HclTrazodone Hcl12suppressed
Doxepin HclDoxepin Hcl11suppressed

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 $221,219.28 · 211 records Axsome Therapeutics, Inc. Auvelity, COBENFY, Deep TMS, SPRAVATO 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