Healthcare provider profile · identity verified

Keith Ian Lenchner, MD

Allopathic & Osteopathic Physicians|Allergy & Immunology · ATLANTA, GA · NPI 1669421491

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 Keith Ian Lenchner, MD received $2,980.28 in general payments during 2025 across 112 reported records.

AstraZeneca Pharmaceuticals LP accounted for 20.5% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 29 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Tezspire, Trelegy Ellipta, Xolair.

Amgen 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 TEZSPIRE as an associated drug or biological on 22824 records involving 7320 distinct recipient NPIs. Public Medicare Part D data also shows 27 claims for Tezspire by this doctor in 2024.

AstraZeneca Pharmaceuticals LP reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported SYMBICORT as an associated drug or biological on 71 records involving 51 distinct recipient NPIs. Public Medicare Part D data also shows 23 claims for Symbicort by this doctor in 2024.

AstraZeneca Pharmaceuticals LP reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported TEZSPIRE as an associated drug or biological on 33983 records involving 10291 distinct recipient NPIs. Public Medicare Part D data also shows 27 claims for Tezspire by this doctor in 2024.

Genentech USA, 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 Xolair as an associated drug or biological on 11057 records involving 4008 distinct recipient NPIs. Public Medicare Part D data also shows 42 claims for Xolair by this doctor in 2024.

GlaxoSmithKline, 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 TRELEGY ELLIPTA as an associated drug or biological on 131532 records involving 37148 distinct recipient NPIs. Public Medicare Part D data also shows 52 claims for Trelegy Ellipta by this doctor in 2024.

Novartis Pharmaceuticals Corporation reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported XOLAIR as an associated drug or biological on 5293 records involving 2861 distinct recipient NPIs. Public Medicare Part D data also shows 42 claims for Xolair by this doctor in 2024.

Takeda Pharmaceuticals U.S.A., 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 HYQVIA as an associated drug or biological on 8878 records involving 3983 distinct recipient NPIs. Public Medicare Part D data also shows 12 claims for Hyqvia by this doctor in 2024.

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

Payment overview · 2025

General Payments

$2,980.28

112 reported records · 21 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
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $611.3520.5%232025
GENZYME CORPORATION Unresolved — no canonical attribution shown $336.7811.3%112025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $245.798.2%92025
BioCryst US Sales Co., LLC Unresolved — no canonical attribution shown $233.737.8%82025
Pharming Healthcare, Inc. Unresolved — no canonical attribution shown $210.087.0%82025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $202.476.8%112025
Takeda Pharmaceuticals U.S.A., Inc. Unresolved — no canonical attribution shown $188.516.3%62025
Regeneron Healthcare Solutions, Inc. Unresolved — no canonical attribution shown $161.095.4%52025
CSL Behring Unresolved — no canonical attribution shown $145.604.9%62025
Grifols USA, LLC Unresolved — no canonical attribution shown $135.724.5%52025
Amgen Inc. Unresolved — no canonical attribution shown $121.604.1%62025
Genentech USA, Inc. Unresolved — no canonical attribution shown $85.752.9%32025
PFIZER INC. Unresolved — no canonical attribution shown $55.511.9%22025
ARS Pharmaceuticals Operations, Inc. Unresolved — no canonical attribution shown $45.351.5%22025
Blueprint Medicines Corporation Unresolved — no canonical attribution shown $41.091.4%12025
Verona Pharma, Inc. Unresolved — no canonical attribution shown $33.541.1%12025
Ionis Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $27.880.9%12025
LEO Pharma Inc. Unresolved — no canonical attribution shown $25.970.9%12025
Lilly USA, LLC Unresolved — no canonical attribution shown $25.690.9%12025
Optinose US, Inc. Unresolved — no canonical attribution shown $24.310.8%12025
Kedrion Biopharma, Inc. Unresolved — no canonical attribution shown $22.470.8%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$2,980.28112

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
TEZSPIRE
Normalized: tezspire
Biological Amgen Inc., AstraZeneca Pharmaceuticals LP $595.22 23 2025
Source payment records
DUPIXENT
Normalized: dupixent
Biological GENZYME CORPORATION, Regeneron Healthcare Solutions, Inc. $431.89 14 2025
Source payment records
ORLADEYO
Normalized: orladeyo
Drug BioCryst US Sales Co., LLC $233.73 8 2025
Source payment records
RUCONEST
Normalized: ruconest
Biological Pharming Healthcare, Inc. $210.08 8 2025
Source payment records
NUCALA
Normalized: nucala
Biological GlaxoSmithKline, LLC. $161.81 9 2025
Source payment records
FASENRA
Normalized: fasenra
Biological AstraZeneca Pharmaceuticals LP $152.16 7 2025
Source payment records
Xembify
Normalized: xembify
Biological Grifols USA, LLC $135.72 5 2025
Source payment records
XOLAIR
Normalized: xolair
Biological, Drug Genentech USA, Inc., Novartis Pharmaceuticals Corporation $116.53 5 2025
Source payment records
AYVAKIT
Normalized: ayvakit
Biological, Drug Blueprint Medicines Corporation, GENZYME CORPORATION $107.07 3 2025
Source payment records
TAKHZYRO
Normalized: takhzyro
Biological Takeda Pharmaceuticals U.S.A., Inc. $106.49 3 2025
Source payment records
Rhapsido
Normalized: rhapsido
Drug Novartis Pharmaceuticals Corporation $89.57 3 2025
Source payment records
CUVITRU
Normalized: cuvitru
Biological Takeda Pharmaceuticals U.S.A., Inc. $82.02 3 2025
Source payment records
Hizentra
Normalized: hizentra
Biological CSL Behring $70.96 3 2025
Source payment records
Andembry
Normalized: andembry
Biological CSL Behring $65.22 2 2025
Source payment records
CUTAQUIG
Normalized: cutaquig
Biological PFIZER INC. $55.51 2 2025
Source payment records
PANZYGA
Normalized: panzyga
Biological PFIZER INC. $55.51 2 2025
Source payment records
NEFFY
Normalized: neffy
Drug ARS Pharmaceuticals Operations, Inc. $45.35 2 2025
Source payment records
TRELEGY ELLIPTA
Normalized: trelegy ellipta
Drug GlaxoSmithKline, LLC. $40.66 2 2025
Source payment records
Ohtuvayre
Normalized: ohtuvayre
Drug Verona Pharma, Inc. $33.54 1 2025
Source payment records
DAWNZERA
Normalized: dawnzera
Drug Ionis Pharmaceuticals, Inc. $27.88 1 2025
Source payment records
ADBRY
Normalized: adbry
Biological LEO Pharma Inc. $25.97 1 2025
Source payment records
EBGLYSS
Normalized: ebglyss
Drug Lilly USA, LLC $25.69 1 2025
Source payment records
Xhance
Normalized: xhance
Drug Optinose US, Inc. $24.31 1 2025
Source payment records
Albuked
Normalized: albuked
Biological Kedrion Biopharma, Inc. $22.47 1 2025
Source payment records
GAMMAKED
Normalized: gammaked
Biological Kedrion Biopharma, Inc. $22.47 1 2025
Source payment records
KEDRAB
Normalized: kedrab
Biological Kedrion Biopharma, Inc. $22.47 1 2025
Source payment records
KOATE
Normalized: koate
Biological Kedrion Biopharma, Inc. $22.47 1 2025
Source payment records
RhoGAM Ultra-Filtered PLUS
Normalized: rhogam ultra filtered plus
Biological Kedrion Biopharma, Inc. $22.47 1 2025
Source payment records
Haegarda
Normalized: haegarda
Biological CSL Behring $9.42 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
TEZSPIRE
tezspire
2025 Tezspire 2024 27
Beneficiary count suppressed
exact normalized Medicare Part D
TRELEGY ELLIPTA
trelegy ellipta
2025 Trelegy Ellipta 2024 52 exact normalized Medicare Part D
XOLAIR
xolair
2025 Xolair 2024 42
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
Amgen Inc.
Exact reporting entity; no affiliate inference
2025 TEZSPIRE
open payments reported associated product
CMS Open Payments — General Payments
22824 supporting records · 7320 recipient NPIs · example record 1226871881
Tezspire · 2024
Exact normalized brand match · 1 Part D row
27 suppressed by CMS
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 SYMBICORT
open payments reported associated product
CMS Open Payments — General Payments
71 supporting records · 51 recipient NPIs · example record 1206132610
Symbicort · 2024
Exact normalized brand match · 1 Part D row
23 suppressed by CMS
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 TEZSPIRE
open payments reported associated product
CMS Open Payments — General Payments
33983 supporting records · 10291 recipient NPIs · example record 1206131392
Tezspire · 2024
Exact normalized brand match · 1 Part D row
27 suppressed by CMS
Genentech USA, Inc.
Exact reporting entity; no affiliate inference
2025 Xolair
open payments reported associated product
CMS Open Payments — General Payments
11057 supporting records · 4008 recipient NPIs · example record 1211488440
Xolair · 2024
Exact normalized brand match · 1 Part D row
42 suppressed by CMS
GlaxoSmithKline, LLC.
Exact reporting entity; no affiliate inference
2025 TRELEGY ELLIPTA
open payments reported associated product
CMS Open Payments — General Payments
131532 supporting records · 37148 recipient NPIs · example record 1190332369
Trelegy Ellipta · 2024
Exact normalized brand match · 1 Part D row
52 14
Novartis Pharmaceuticals Corporation
Exact reporting entity; no affiliate inference
2025 XOLAIR
open payments reported associated product
CMS Open Payments — General Payments
5293 supporting records · 2861 recipient NPIs · example record 1200005083
Xolair · 2024
Exact normalized brand match · 1 Part D row
42 suppressed by CMS
Takeda Pharmaceuticals U.S.A., Inc.
Exact reporting entity; no affiliate inference
2025 HYQVIA
open payments reported associated product
CMS Open Payments — General Payments
8878 supporting records · 3983 recipient NPIs · example record 1223616272
Hyqvia · 2024
Exact normalized brand match · 1 Part D row
12 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
Pantoprazole SodiumPantoprazole Sodium20274
Montelukast SodiumMontelukast Sodium11637
Albuterol Sulfate HfaAlbuterol Sulfate10551
Azelastine HclAzelastine Hcl8437
FamotidineFamotidine7926
EpinephrineEpinephrine7050
Breo ElliptaFluticasone/Vilanterol6916
PrednisonePrednisone5241
Trelegy ElliptaFluticasone/Umeclidin/Vilanter5214
Fluticasone PropionateFluticasone Propionate4924
XolairOmalizumab42suppressed
OmeprazoleOmeprazole3611
Ipratropium BromideIpratropium Bromide3513
Esomeprazole MagnesiumEsomeprazole Magnesium33suppressed
Triamcinolone AcetonideTriamcinolone Acetonide3219
Wixela InhubFluticasone Propion/Salmeterol3113
Advair HfaFluticasone Propion/Salmeterol30suppressed
Dupixent SyringeDupilumab30suppressed
TezspireTezepelumab-Ekko27suppressed
SymbicortBudesonide/Formoterol Fumarate23suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol20suppressed
Clindamycin HclClindamycin Hcl18suppressed
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride18suppressed
Clobetasol PropionateClobetasol Propionate17suppressed
Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate13suppressed
GabapentinGabapentin13suppressed
HydrocortisoneHydrocortisone13suppressed
HyqviaIgg/Hyaluronidase,recombinant12suppressed
Doxycycline HyclateDoxycycline Hyclate1111

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 $2,980.28 · 112 records AstraZeneca Pharmaceuticals LP ADBRY, AYVAKIT, Albuked, Andembry, CUTAQUIG, CUVITRU, DAWNZERA, DUPIXENT, EBGLYSS, FASENRA, GAMMAKED, Haegarda, Hizentra, KEDRAB, KOATE, NEFFY, NUCALA, ORLADEYO, Ohtuvayre, PANZYGA, RUCONEST, Rhapsido, RhoGAM Ultra-Filtered PLUS, TAKHZYRO, TEZSPIRE, TRELEGY ELLIPTA, XOLAIR, Xembify, Xhance 7
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