Healthcare provider profile · identity verified

Tze K Ip, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine|Cardiovascular Disease · MISSION VIEJO, CA · NPI 1316924947

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 Tze K Ip, M.D. received $364.38 in general payments during 2025 across 15 reported records.

E.R. Squibb & Sons, L.L.C. accounted for 34.7% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 9 associated products.

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

Boehringer Ingelheim 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 JARDIANCE as an associated drug or biological on 123636 records involving 49438 distinct recipient NPIs. Public Medicare Part D data also shows 18 claims for Jardiance by this doctor in 2024.

E.R. Squibb & Sons, L.L.C. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported ELIQUIS as an associated drug or biological on 27956 records involving 14870 distinct recipient NPIs. Public Medicare Part D data also shows 339 claims for Eliquis 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 ENTRESTO as an associated drug or biological on 9346 records involving 6254 distinct recipient NPIs. Public Medicare Part D data also shows 161 claims for Entresto by this doctor in 2024.

PFIZER 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 ELIQUIS as an associated drug or biological on 87112 records involving 36032 distinct recipient NPIs. Public Medicare Part D data also shows 339 claims for Eliquis by this doctor in 2024.

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

Payment overview · 2025

General Payments

$364.38

15 reported records · 6 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
E.R. Squibb & Sons, L.L.C. Unresolved — no canonical attribution shown $126.3834.7%62025
Boston Scientific Corporation Unresolved — no canonical attribution shown $112.8131.0%32025
Novo Nordisk Inc Unresolved — no canonical attribution shown $44.4912.2%22025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $40.9711.2%22025
PFIZER INC. Unresolved — no canonical attribution shown $22.256.1%12025
Boehringer Ingelheim Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $17.484.8%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$364.3815

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
CAMZYOS
Normalized: camzyos
Drug E.R. Squibb & Sons, L.L.C. $105.93 5 2025
Source payment records
AVVIGO Guidance System
Normalized: avvigo guidance system
Device Boston Scientific Corporation $75.31 2 2025
Source payment records
LEQVIO
Normalized: leqvio
Drug Novartis Pharmaceuticals Corporation $40.97 2 2025
Source payment records
ROTAPRO
Normalized: rotapro
Device Boston Scientific Corporation $37.50 1 2025
Source payment records
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $22.53 1 2025
Source payment records
VYNDAQEL
Normalized: vyndaqel
Drug PFIZER INC. $22.25 1 2025
Source payment records
Wegovy
Normalized: wegovy
Drug Novo Nordisk Inc $21.96 1 2025
Source payment records
ELIQUIS
Normalized: eliquis
Drug E.R. Squibb & Sons, L.L.C. $20.45 1 2025
Source payment records
JARDIANCE
Normalized: jardiance
Drug Boehringer Ingelheim Pharmaceuticals, Inc. $17.48 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
ELIQUIS
eliquis
2025 Eliquis 2024 339 exact normalized Medicare Part D
JARDIANCE
jardiance
2025 Jardiance 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
Boehringer Ingelheim Pharmaceuticals, Inc.
Exact reporting entity; no affiliate inference
2025 JARDIANCE
open payments reported associated product
CMS Open Payments — General Payments
123636 supporting records · 49438 recipient NPIs · example record 1221811583
Jardiance · 2024
Exact normalized brand match · 1 Part D row
18 suppressed by CMS
E.R. Squibb & Sons, L.L.C.
Exact reporting entity; no affiliate inference
2025 ELIQUIS
open payments reported associated product
CMS Open Payments — General Payments
27956 supporting records · 14870 recipient NPIs · example record 1184377713
Eliquis · 2024
Exact normalized brand match · 1 Part D row
339 74
Novartis Pharmaceuticals Corporation
Exact reporting entity; no affiliate inference
2025 ENTRESTO
open payments reported associated product
CMS Open Payments — General Payments
9346 supporting records · 6254 recipient NPIs · example record 1200004797
Entresto · 2024
Exact normalized brand match · 1 Part D row
161 40
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 ELIQUIS
open payments reported associated product
CMS Open Payments — General Payments
87112 supporting records · 36032 recipient NPIs · example record 1228794063
Eliquis · 2024
Exact normalized brand match · 1 Part D row
339 74

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
Rosuvastatin CalciumRosuvastatin Calcium597176
CarvedilolCarvedilol37595
EliquisApixaban33974
Atorvastatin CalciumAtorvastatin Calcium325104
Metoprolol SuccinateMetoprolol Succinate32591
Amlodipine BesylateAmlodipine Besylate29085
ValsartanValsartan23869
Losartan PotassiumLosartan Potassium23668
ClopidogrelClopidogrel Bisulfate23065
EzetimibeEzetimibe22865
LisinoprilLisinopril20564
FurosemideFurosemide19468
Warfarin SodiumWarfarin Sodium19283
Metoprolol TartrateMetoprolol Tartrate17652
HydrochlorothiazideHydrochlorothiazide16951
EntrestoSacubitril/Valsartan16140
Pravastatin SodiumPravastatin Sodium11229
SimvastatinSimvastatin10126
AtenololAtenolol8926
XareltoRivaroxaban7514
Amiodarone HclAmiodarone Hcl6820
Isosorbide Mononitrate ErIsosorbide Mononitrate5914
Potassium ChloridePotassium Chloride5316
Repatha SureclickEvolocumab42suppressed
FarxigaDapagliflozin Propanediol40suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid35suppressed
Benazepril HclBenazepril Hcl30suppressed
Nifedipine ErNifedipine30suppressed
Ranolazine ErRanolazine30suppressed
DigoxinDigoxin29suppressed
SpironolactoneSpironolactone28suppressed
Prasugrel HclPrasugrel Hcl27suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide26suppressed
NitroglycerinNitroglycerin2614
RamiprilRamipril26suppressed
BrilintaTicagrelor25suppressed
Hydralazine HclHydralazine Hcl21suppressed
Olmesartan MedoxomilOlmesartan Medoxomil19suppressed
JardianceEmpagliflozin18suppressed
Propranolol HclPropranolol Hcl18suppressed
IrbesartanIrbesartan17suppressed
Felodipine ErFelodipine16suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide15suppressed
MetolazoneMetolazone14suppressed
Niacin ErNiacin14suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl13suppressed
Enoxaparin SodiumEnoxaparin Sodium13suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide13suppressed
DiovanValsartan12suppressed
Enalapril MaleateEnalapril Maleate12suppressed
Isosorbide DinitrateIsosorbide Dinitrate12suppressed
Propranolol Hcl ErPropranolol Hcl12suppressed
Repatha SyringeEvolocumab12suppressed
LovastatinLovastatin11suppressed
SotalolSotalol 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 $364.38 · 15 records E.R. Squibb & Sons, L.L.C. AVVIGO Guidance System, CAMZYOS, ELIQUIS, JARDIANCE, LEQVIO, Ozempic, ROTAPRO, VYNDAQEL, Wegovy 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