Healthcare provider profile · identity verified

Derek T Phan, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine · WESTMINSTER, CA · NPI 1073729588

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 Derek T Phan, M.D. received $40.76 in general payments during 2025 across 2 reported records.

Lilly USA, LLC accounted for 52.2% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 2 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 144 claims for Jardiance by this doctor in 2024.

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 TRULICITY as an associated drug or biological on 71 records involving 57 distinct recipient NPIs. Public Medicare Part D data also shows 11 claims for Trulicity by this doctor in 2024.

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

Payment overview · 2025

General Payments

$40.76

2 reported records · 2 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
Lilly USA, LLC Unresolved — no canonical attribution shown $21.2752.2%12025
Exact Sciences Corporation Unresolved — no canonical attribution shown $19.4947.8%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$40.762

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
MOUNJARO
Normalized: mounjaro
Drug Lilly USA, LLC $21.27 1 2025
Source payment records
The Cologuard Plus Collection Kit
Normalized: the cologuard plus collection kit
Device Exact Sciences Corporation $19.49 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
144 31
Lilly USA, LLC
Exact reporting entity; no affiliate inference
2025 TRULICITY
open payments reported associated product
CMS Open Payments — General Payments
71 supporting records · 57 recipient NPIs · example record 1186464601
Trulicity · 2024
Exact normalized brand match · 1 Part D row
11 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
Amlodipine BesylateAmlodipine Besylate33490
Atorvastatin CalciumAtorvastatin Calcium28882
Metformin HclMetformin Hcl21758
Rosuvastatin CalciumRosuvastatin Calcium20558
Losartan PotassiumLosartan Potassium18151
Metoprolol SuccinateMetoprolol Succinate15947
JardianceEmpagliflozin14431
Pantoprazole SodiumPantoprazole Sodium10952
Fluticasone PropionateFluticasone Propionate8737
Benazepril HclBenazepril Hcl8523
JanuviaSitagliptin Phosphate8519
AmoxicillinAmoxicillin7556
Albuterol Sulfate HfaAlbuterol Sulfate7431
Olmesartan MedoxomilOlmesartan Medoxomil7321
AzithromycinAzithromycin7159
MeloxicamMeloxicam7145
Pioglitazone HclPioglitazone Hcl7120
Triamcinolone AcetonideTriamcinolone Acetonide6239
HydrochlorothiazideHydrochlorothiazide5819
LisinoprilLisinopril5616
AtenololAtenolol5013
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide5017
EzetimibeEzetimibe4915
Tamsulosin HclTamsulosin Hcl4814
Montelukast SodiumMontelukast Sodium4714
Alendronate SodiumAlendronate Sodium4612
GabapentinGabapentin4530
LoperamideLoperamide Hcl4538
Cromolyn SodiumCromolyn Sodium4420
IbuprofenIbuprofen3731
Glipizide ErGlipizide34suppressed
Levothyroxine SodiumLevothyroxine Sodium31suppressed
Meclizine HclMeclizine Hcl3021
SimvastatinSimvastatin30suppressed
VascepaIcosapent Ethyl28suppressed
Hydralazine HclHydralazine Hcl26suppressed
OmeprazoleOmeprazole25suppressed
ArexvyRsvpref3 Antigen/As01e/Pf2424
FarxigaDapagliflozin Propanediol24suppressed
ValsartanValsartan24suppressed
Clotrimazole-BetamethasoneClotrimazole/Betamethasone Dip2316
Alcohol Prep PadsAlcohol Antiseptic Pads2211
MirtazapineMirtazapine22suppressed
TradjentaLinagliptin21suppressed
FenofibrateFenofibrate Nanocrystallized20suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl1918
FinasterideFinasteride19suppressed
Chlorhexidine GluconateChlorhexidine Gluconate18suppressed
Omega-3 Acid Ethyl EstersOmega-3 Acid Ethyl Esters18suppressed
Pravastatin SodiumPravastatin Sodium18suppressed
AllopurinolAllopurinol17suppressed
Icosapent EthylIcosapent Ethyl16suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol15suppressed
Diclofenac SodiumDiclofenac Sodium14suppressed
JanumetSitagliptin Phos/Metformin Hcl14suppressed
LovastatinLovastatin14suppressed
Metoprolol TartrateMetoprolol Tartrate14suppressed
ShingrixVaricella-Zoster Ge/As01b/Pf1411
ClopidogrelClopidogrel Bisulfate13suppressed
FluocinonideFluocinonide13suppressed
CelecoxibCelecoxib12suppressed
MethylprednisoloneMethylprednisolone1211
Sildenafil CitrateSildenafil Citrate12suppressed
CyclosporineCyclosporine11suppressed
FamotidineFamotidine11suppressed
Single Use SwabAlcohol Antiseptic Pads11suppressed
TrulicityDulaglutide11suppressed

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 $40.76 · 2 records Lilly USA, LLC MOUNJARO, The Cologuard Plus Collection Kit 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