Healthcare provider profile · identity verified

John Steven Lammert, MD

Allopathic & Osteopathic Physicians|Internal Medicine · WOODSTOCK, GA · NPI 1699727909

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 John Steven Lammert, MD received $52.05 in general payments during 2025 across 3 reported records.

Abbott Laboratories accounted for 37.2% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 6 associated products.

Lilly USA, 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 JARDIANCE as an associated drug or biological on 47708 records involving 23833 distinct recipient NPIs. Public Medicare Part D data also shows 20 claims for Jardiance by this doctor in 2024.

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

Payment overview · 2025

General Payments

$52.05

3 reported records · 3 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
Abbott Laboratories Unresolved — no canonical attribution shown $19.3437.2%12025
Lilly USA, LLC Unresolved — no canonical attribution shown $18.3335.2%12025
PFIZER INC. Unresolved — no canonical attribution shown $14.3827.6%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$52.053

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
FREESTYLE LIBRE 3
Normalized: freestyle libre 3
Device Abbott Laboratories $19.34 1 2025
Source payment records
MOUNJARO
Normalized: mounjaro
Drug Lilly USA, LLC $18.33 1 2025
Source payment records
ZEPBOUND
Normalized: zepbound
Drug Lilly USA, LLC $18.33 1 2025
Source payment records
ABRYSVO
Normalized: abrysvo
Biological PFIZER INC. $14.38 1 2025
Source payment records
COMIRNATY
Normalized: comirnaty
Biological PFIZER INC. $14.38 1 2025
Source payment records
PREVNAR 20
Normalized: prevnar 20
Biological PFIZER INC. $14.38 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
Lilly USA, LLC
Exact reporting entity; no affiliate inference
2025 JARDIANCE
open payments reported associated product
CMS Open Payments — General Payments
47708 supporting records · 23833 recipient NPIs · example record 1186464557
Jardiance · 2024
Exact normalized brand match · 1 Part D row
20 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
Atorvastatin CalciumAtorvastatin Calcium422152
Levothyroxine SodiumLevothyroxine Sodium23179
Amlodipine BesylateAmlodipine Besylate23078
Losartan PotassiumLosartan Potassium22381
LisinoprilLisinopril21979
Metformin HclMetformin Hcl14160
Pravastatin SodiumPravastatin Sodium11842
Rosuvastatin CalciumRosuvastatin Calcium11446
HydrochlorothiazideHydrochlorothiazide11240
OmeprazoleOmeprazole10034
Trazodone HclTrazodone Hcl9332
Metoprolol SuccinateMetoprolol Succinate9131
Sertraline HclSertraline Hcl7225
Pantoprazole SodiumPantoprazole Sodium6720
AllopurinolAllopurinol6322
EzetimibeEzetimibe6330
AtenololAtenolol5920
SimvastatinSimvastatin5820
Tamsulosin HclTamsulosin Hcl5718
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide4616
Zolpidem TartrateZolpidem Tartrate4511
CarvedilolCarvedilol4112
GabapentinGabapentin4121
FamotidineFamotidine4013
Citalopram HbrCitalopram Hydrobromide3913
Fluoxetine HclFluoxetine Hcl3712
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide3715
OzempicSemaglutide35suppressed
Albuterol Sulfate HfaAlbuterol Sulfate3419
AzithromycinAzithromycin3129
ClonazepamClonazepam30suppressed
FenofibrateFenofibrate30suppressed
MeloxicamMeloxicam30suppressed
Metformin Hcl ErMetformin Hcl30suppressed
Fluticasone PropionateFluticasone Propionate28suppressed
Glipizide ErGlipizide28suppressed
Potassium ChloridePotassium Chloride28suppressed
Benazepril HclBenazepril Hcl26suppressed
Escitalopram OxalateEscitalopram Oxalate26suppressed
LovastatinLovastatin25suppressed
ValsartanValsartan25suppressed
Bupropion XlBupropion Hcl24suppressed
Hydroxyzine HclHydroxyzine Hcl24suppressed
Amitriptyline HclAmitriptyline Hcl22suppressed
SynthroidLevothyroxine Sodium21suppressed
FurosemideFurosemide20suppressed
JardianceEmpagliflozin20suppressed
Tramadol HclTramadol Hcl20suppressed
Alendronate SodiumAlendronate Sodium19suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim1913
FarxigaDapagliflozin Propanediol18suppressed
SpironolactoneSpironolactone18suppressed
FinasterideFinasteride17suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid17suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide16suppressed
AmoxicillinAmoxicillin1515
Cyclobenzaprine HclCyclobenzaprine Hcl15suppressed
Diclofenac SodiumDiclofenac Sodium15suppressed
Hydralazine HclHydralazine Hcl15suppressed
JanuviaSitagliptin Phosphate15suppressed
Olmesartan MedoxomilOlmesartan Medoxomil15suppressed
GlimepirideGlimepiride14suppressed
SymbicortBudesonide/Formoterol Fumarate14suppressed
ValacyclovirValacyclovir Hcl14suppressed
Duloxetine HclDuloxetine Hcl13suppressed
Oxybutynin Chloride ErOxybutynin Chloride13suppressed
Paroxetine HclParoxetine Hcl13suppressed
Repatha SureclickEvolocumab13suppressed
LevetiracetamLevetiracetam12suppressed
Methylphenidate ErMethylphenidate Hcl12suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter12suppressed
BreynaBudesonide/Formoterol Fumarate11suppressed
ChlorthalidoneChlorthalidone11suppressed
Metoprolol TartrateMetoprolol Tartrate11suppressed

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 $52.05 · 3 records Abbott Laboratories ABRYSVO, COMIRNATY, FREESTYLE LIBRE 3, MOUNJARO, PREVNAR 20, ZEPBOUND 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