Healthcare provider profile · identity verified

Katherine R Tuttle, MD

Allopathic & Osteopathic Physicians|Internal Medicine|Nephrology · SPOKANE, WA · NPI 1740399492

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 Katherine R Tuttle, MD received $93,114.67 in general payments during 2025 across 64 reported records.

Eli Lilly and Company accounted for 21.5% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 10 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Farxiga, Kerendia, Ozempic.

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 FARXIGA as an associated drug or biological on 106133 records involving 42906 distinct recipient NPIs. Public Medicare Part D data also shows 13 claims for Farxiga by this doctor in 2024.

AstraZeneca UK Limited reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported FARXIGA as an associated drug or biological on 30 records involving 16 distinct recipient NPIs. Public Medicare Part D data also shows 13 claims for Farxiga by this doctor in 2024.

Bayer Healthcare 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 Kerendia as an associated drug or biological on 138674 records involving 48458 distinct recipient NPIs. Public Medicare Part D data also shows 16 claims for Kerendia by this doctor in 2024.

Boehringer Ingelheim International GmbH 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 21 records involving 6 distinct recipient NPIs. Public Medicare Part D data also shows 25 claims for Jardiance by this doctor in 2024.

Eli Lilly and Company 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 15 records involving 11 distinct recipient NPIs. Public Medicare Part D data also shows 25 claims for Jardiance by this doctor in 2024.

Eli Lilly and Company reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported MOUNJARO as an associated drug or biological on 176 records involving 33 distinct recipient NPIs. Public Medicare Part D data also shows 11 claims for Mounjaro by this doctor in 2024.

Novo Nordisk AS reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported Ozempic as an associated drug or biological on 13 records involving 3 distinct recipient NPIs. Public Medicare Part D data also shows 18 claims for Ozempic by this doctor in 2024.

Novo Nordisk 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 Ozempic as an associated drug or biological on 261625 records involving 77793 distinct recipient NPIs. Public Medicare Part D data also shows 18 claims for Ozempic by this doctor in 2024.

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

Payment overview · 2025

General Payments

$93,114.67

64 reported records · 20 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
Eli Lilly and Company Unresolved — no canonical attribution shown $19,998.2821.5%62025
Boehringer Ingelheim International GmbH Unresolved — no canonical attribution shown $17,600.4318.9%52025
AstraZeneca UK Limited Unresolved — no canonical attribution shown $10,749.5011.5%42025
Travere Therapeutics, Inc. Unresolved — no canonical attribution shown $8,516.869.2%112025
Novo Nordisk Inc Unresolved — no canonical attribution shown $6,796.887.3%42025
Otsuka Pharmaceutical Development & Commercialization, Inc. Unresolved — no canonical attribution shown $5,267.975.7%112025
Alnylam Pharmaceuticals Inc. Unresolved — no canonical attribution shown $4,900.005.3%12025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $4,225.004.5%12025
Novo Nordisk AS Unresolved — no canonical attribution shown $4,003.314.3%32025
AstraZeneca AB Unresolved — no canonical attribution shown $3,369.813.6%42025
F. Hoffmann-La Roche AG Unresolved — no canonical attribution shown $2,620.002.8%12025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $2,250.002.4%12025
Roche Products Limited Unresolved — no canonical attribution shown $1,637.501.8%12025
Astellas Pharma Inc Unresolved — no canonical attribution shown $651.000.7%12025
Bayer Healthcare Pharmaceuticals Inc. Unresolved — no canonical attribution shown $317.930.3%32025
Corcept Therapeutics Unresolved — no canonical attribution shown $77.450.1%12025
Calliditas Therapeutics US Inc. Unresolved — no canonical attribution shown $54.370.1%22025
Amgen Inc. Unresolved — no canonical attribution shown $37.360.0%22025
Vifor Pharma, Inc. Unresolved — no canonical attribution shown $22.670.0%12025
Apellis Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $18.350.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Consulting Fee$53,613.0018
Travel and Lodging$23,801.4316
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$14,111.693
Food and Beverage$1,588.5527

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
Ozempic
Normalized: ozempic
Drug Novo Nordisk AS, Novo Nordisk Inc $6,819.98 4 2025
Source payment records
FARXIGA
Normalized: farxiga
Drug AstraZeneca UK Limited $2,148.00 1 2025
Source payment records
Kerendia
Normalized: kerendia
Drug Bayer Healthcare Pharmaceuticals Inc. $169.43 2 2025
Source payment records
Filspari
Normalized: filspari
Drug Travere Therapeutics, Inc. $125.00 1 2025
Source payment records
Korlym
Normalized: korlym
Drug Corcept Therapeutics $77.45 1 2025
Source payment records
TARPEYO
Normalized: tarpeyo
Drug Calliditas Therapeutics US Inc. $54.37 2 2025
Source payment records
TAVNEOS
Normalized: tavneos
Drug Amgen Inc. $37.36 2 2025
Source payment records
Veltassa
Normalized: veltassa
Drug Vifor Pharma, Inc. $22.67 1 2025
Source payment records
Empaveli
Normalized: empaveli
Drug Apellis Pharmaceuticals, Inc. $18.35 1 2025
Source payment records
Wegovy
Normalized: wegovy
Drug Novo Nordisk Inc $10.19 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
FARXIGA
farxiga
2025 Farxiga 2024 13
Beneficiary count suppressed
exact normalized Medicare Part D
Kerendia
kerendia
2025 Kerendia 2024 16
Beneficiary count suppressed
exact normalized Medicare Part D
Ozempic
ozempic
2025 Ozempic 2024 18
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
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 FARXIGA
open payments reported associated product
CMS Open Payments — General Payments
106133 supporting records · 42906 recipient NPIs · example record 1206131362
Farxiga · 2024
Exact normalized brand match · 1 Part D row
13 suppressed by CMS
AstraZeneca UK Limited
Exact reporting entity; no affiliate inference
2025 FARXIGA
open payments reported associated product
CMS Open Payments — General Payments
30 supporting records · 16 recipient NPIs · example record 1202913210
Farxiga · 2024
Exact normalized brand match · 1 Part D row
13 suppressed by CMS
Bayer Healthcare Pharmaceuticals Inc.
Exact reporting entity; no affiliate inference
2025 Kerendia
open payments reported associated product
CMS Open Payments — General Payments
138674 supporting records · 48458 recipient NPIs · example record 1225434663
Kerendia · 2024
Exact normalized brand match · 1 Part D row
16 suppressed by CMS
Boehringer Ingelheim International GmbH
Exact reporting entity; no affiliate inference
2025 JARDIANCE
open payments reported associated product
CMS Open Payments — General Payments
21 supporting records · 6 recipient NPIs · example record 1215868079
Jardiance · 2024
Exact normalized brand match · 1 Part D row
25 suppressed by CMS
Eli Lilly and Company
Exact reporting entity; no affiliate inference
2025 JARDIANCE
open payments reported associated product
CMS Open Payments — General Payments
15 supporting records · 11 recipient NPIs · example record 1186556234
Jardiance · 2024
Exact normalized brand match · 1 Part D row
25 suppressed by CMS
Eli Lilly and Company
Exact reporting entity; no affiliate inference
2025 MOUNJARO
open payments reported associated product
CMS Open Payments — General Payments
176 supporting records · 33 recipient NPIs · example record 1186466331
Mounjaro · 2024
Exact normalized brand match · 1 Part D row
11 suppressed by CMS
Novo Nordisk AS
Exact reporting entity; no affiliate inference
2025 Ozempic
open payments reported associated product
CMS Open Payments — General Payments
13 supporting records · 3 recipient NPIs · example record 1189186035
Ozempic · 2024
Exact normalized brand match · 1 Part D row
18 suppressed by CMS
Novo Nordisk Inc
Exact reporting entity; no affiliate inference
2025 Ozempic
open payments reported associated product
CMS Open Payments — General Payments
261625 supporting records · 77793 recipient NPIs · example record 1188130076
Ozempic · 2024
Exact normalized brand match · 1 Part D row
18 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
SpironolactoneSpironolactone33suppressed
JardianceEmpagliflozin25suppressed
Losartan PotassiumLosartan Potassium25suppressed
FurosemideFurosemide24suppressed
AllopurinolAllopurinol23suppressed
Amlodipine BesylateAmlodipine Besylate23suppressed
OzempicSemaglutide18suppressed
Metoprolol SuccinateMetoprolol Succinate17suppressed
KerendiaFinerenone16suppressed
TorsemideTorsemide16suppressed
TrulicityDulaglutide15suppressed
FarxigaDapagliflozin Propanediol13suppressed
Potassium ChloridePotassium Chloride13suppressed
HydrochlorothiazideHydrochlorothiazide12suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog11suppressed
MounjaroTirzepatide11suppressed

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 $93,114.67 · 64 records Eli Lilly and Company Empaveli, FARXIGA, Filspari, Kerendia, Korlym, Ozempic, TARPEYO, TAVNEOS, Veltassa, Wegovy 8
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