Healthcare provider profile · identity verified

Phi Tan Huynh, MD

Allopathic & Osteopathic Physicians|Internal Medicine · LODI, CA · NPI 1598742413

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 Phi Tan Huynh, MD received $1,884.14 in general payments during 2025 across 57 reported records.

Amgen Inc. accounted for 31.7% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 20 associated products.

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

Aimmune Therapeutics, 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 ZENPEP as an associated drug or biological on 32144 records involving 12432 distinct recipient NPIs. Public Medicare Part D data also shows 29 claims for Zenpep by this doctor in 2024.

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 PROLIA as an associated drug or biological on 20867 records involving 11744 distinct recipient NPIs. Public Medicare Part D data also shows 75 claims for Prolia 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 BRILINTA as an associated drug or biological on 993 records involving 512 distinct recipient NPIs. Public Medicare Part D data also shows 19 claims for Brilinta 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 FARXIGA as an associated drug or biological on 106133 records involving 42906 distinct recipient NPIs. Public Medicare Part D data also shows 98 claims for Farxiga 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 18 claims for Symbicort 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 36 claims for Kerendia by this doctor in 2024.

Gilead Sciences, 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 Vemlidy as an associated drug or biological on 782 records involving 554 distinct recipient NPIs. Public Medicare Part D data also shows 22 claims for Vemlidy 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 SHINGRIX as an associated drug or biological on 43515 records involving 26794 distinct recipient NPIs. Public Medicare Part D data also shows 13 claims for Shingrix 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 24 claims for Trelegy Ellipta 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 JARDIANCE as an associated drug or biological on 47708 records involving 23833 distinct recipient NPIs. Public Medicare Part D data also shows 263 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 15 claims for Trulicity 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 Rybelsus as an associated drug or biological on 161257 records involving 55409 distinct recipient NPIs. Public Medicare Part D data also shows 14 claims for Rybelsus by this doctor in 2024.

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

Payment overview · 2025

General Payments

$1,884.14

57 reported records · 13 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
Amgen Inc. Unresolved — no canonical attribution shown $597.2931.7%192025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $394.8020.9%52025
Lilly USA, LLC Unresolved — no canonical attribution shown $229.7412.2%62025
Bayer Healthcare Pharmaceuticals Inc. Unresolved — no canonical attribution shown $207.4111.0%92025
Aimmune Therapeutics, Inc. Unresolved — no canonical attribution shown $144.767.7%82025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $123.506.5%12025
Gilead Sciences, Inc. Unresolved — no canonical attribution shown $45.082.4%22025
Merck Sharp & Dohme LLC Unresolved — no canonical attribution shown $41.982.2%22025
Novo Nordisk Inc Unresolved — no canonical attribution shown $24.161.3%12025
Phathom Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $21.931.2%12025
RedHill Biopharma Inc. Unresolved — no canonical attribution shown $21.861.2%12025
RECORDATI_RARE_DISEASES_INC. Unresolved — no canonical attribution shown $16.570.9%12025
Optinose US, Inc. Unresolved — no canonical attribution shown $15.060.8%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$1,884.1457

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
REPATHA
Normalized: repatha
Biological Amgen Inc. $332.21 10 2025
Source payment records
BREZTRI
Normalized: breztri
Drug AstraZeneca Pharmaceuticals LP $275.33 4 2025
Source payment records
AIRSUPRA
Normalized: airsupra
Drug AstraZeneca Pharmaceuticals LP $234.43 2 2025
Source payment records
OTEZLA
Normalized: otezla
Drug Amgen Inc. $221.60 8 2025
Source payment records
JARDIANCE
Normalized: jardiance
Drug Lilly USA, LLC $209.41 5 2025
Source payment records
Kerendia
Normalized: kerendia
Drug Bayer Healthcare Pharmaceuticals Inc. $207.41 9 2025
Source payment records
ZENPEP
Normalized: zenpep
Drug Aimmune Therapeutics, Inc. $144.76 8 2025
Source payment records
AREXVY
Normalized: arexvy
Biological GlaxoSmithKline, LLC. $123.50 1 2025
Source payment records
EVENITY
Normalized: evenity
Biological Amgen Inc. $88.38 6 2025
Source payment records
CAPVAXIVE
Normalized: capvaxive
Biological Merck Sharp & Dohme LLC $41.98 2 2025
Source payment records
GARDASIL 9
Normalized: gardasil 9
Biological Merck Sharp & Dohme LLC $41.98 2 2025
Source payment records
KRYSTEXXA
Normalized: krystexxa
Biological Amgen Inc. $26.70 2 2025
Source payment records
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $24.16 1 2025
Source payment records
Rybelsus
Normalized: rybelsus
Drug Novo Nordisk Inc $24.16 1 2025
Source payment records
VOQUEZNA
Normalized: voquezna
Drug Phathom Pharmaceuticals, Inc. $21.93 1 2025
Source payment records
Talicia
Normalized: talicia
Drug RedHill Biopharma Inc. $21.86 1 2025
Source payment records
MOUNJARO
Normalized: mounjaro
Drug Lilly USA, LLC $20.33 1 2025
Source payment records
ZEPBOUND
Normalized: zepbound
Drug Lilly USA, LLC $20.33 1 2025
Source payment records
ISTURISA
Normalized: isturisa
Drug RECORDATI_RARE_DISEASES_INC. $16.57 1 2025
Source payment records
Xhance
Normalized: xhance
Drug Optinose US, Inc. $15.06 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
JARDIANCE
jardiance
2025 Jardiance 2024 263 exact normalized Medicare Part D
Kerendia
kerendia
2025 Kerendia 2024 36
Beneficiary count suppressed
exact normalized Medicare Part D
Rybelsus
rybelsus
2025 Rybelsus 2024 14
Beneficiary count suppressed
exact normalized Medicare Part D
ZENPEP
zenpep
2025 Zenpep 2024 29
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
Aimmune Therapeutics, Inc.
Exact reporting entity; no affiliate inference
2025 ZENPEP
open payments reported associated product
CMS Open Payments — General Payments
32144 supporting records · 12432 recipient NPIs · example record 1249641927
Zenpep · 2024
Exact normalized brand match · 1 Part D row
29 suppressed by CMS
Amgen Inc.
Exact reporting entity; no affiliate inference
2025 PROLIA
open payments reported associated product
CMS Open Payments — General Payments
20867 supporting records · 11744 recipient NPIs · example record 1226874448
Prolia · 2024
Exact normalized brand match · 1 Part D row
75 46
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 BRILINTA
open payments reported associated product
CMS Open Payments — General Payments
993 supporting records · 512 recipient NPIs · example record 1206131430
Brilinta · 2024
Exact normalized brand match · 1 Part D row
19 suppressed by CMS
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
98 17
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
18 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
36 suppressed by CMS
Gilead Sciences, Inc.
Exact reporting entity; no affiliate inference
2025 Vemlidy
open payments reported associated product
CMS Open Payments — General Payments
782 supporting records · 554 recipient NPIs · example record 1234350906
Vemlidy · 2024
Exact normalized brand match · 1 Part D row
22 suppressed by CMS
GlaxoSmithKline, LLC.
Exact reporting entity; no affiliate inference
2025 SHINGRIX
open payments reported associated product
CMS Open Payments — General Payments
43515 supporting records · 26794 recipient NPIs · example record 1190332452
Shingrix · 2024
Exact normalized brand match · 1 Part D row
13 11
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
24 suppressed by CMS
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
263 48
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
15 suppressed by CMS
Novo Nordisk Inc
Exact reporting entity; no affiliate inference
2025 Rybelsus
open payments reported associated product
CMS Open Payments — General Payments
161257 supporting records · 55409 recipient NPIs · example record 1188130076
Rybelsus · 2024
Exact normalized brand match · 1 Part D row
14 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 Calcium759230
Amlodipine BesylateAmlodipine Besylate503148
Losartan PotassiumLosartan Potassium364116
Metformin Hcl ErMetformin Hcl349105
Fluticasone PropionateFluticasone Propionate34598
JardianceEmpagliflozin26348
NaproxenNaproxen259120
Alendronate SodiumAlendronate Sodium22866
FamotidineFamotidine22595
Triamcinolone AcetonideTriamcinolone Acetonide215105
Albuterol Sulfate HfaAlbuterol Sulfate19269
Metformin HclMetformin Hcl19157
GabapentinGabapentin17365
Montelukast SodiumMontelukast Sodium16540
Tamsulosin HclTamsulosin Hcl14451
AtenololAtenolol13638
FenofibrateFenofibrate12537
LisinoprilLisinopril12438
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide11631
Diclofenac SodiumDiclofenac Sodium10157
FarxigaDapagliflozin Propanediol9817
IbuprofenIbuprofen9765
Rosuvastatin CalciumRosuvastatin Calcium9230
Trazodone HclTrazodone Hcl8635
MethylprednisoloneMethylprednisolone7971
Pioglitazone HclPioglitazone Hcl7917
BaclofenBaclofen7654
ProliaDenosumab7546
HydrocortisoneHydrocortisone7423
OmeprazoleOmeprazole7428
AzithromycinAzithromycin7369
CelecoxibCelecoxib7127
LoperamideLoperamide Hcl6853
FinasterideFinasteride6318
JanuviaSitagliptin Phosphate6311
AmoxicillinAmoxicillin6157
Cromolyn SodiumCromolyn Sodium6122
LovastatinLovastatin6015
ColchicineColchicine5917
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst5854
Oxybutynin ChlorideOxybutynin Chloride5823
Donepezil HclDonepezil Hcl5722
Pantoprazole SodiumPantoprazole Sodium5530
SimvastatinSimvastatin5517
AllopurinolAllopurinol5216
Metoprolol SuccinateMetoprolol Succinate5216
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride5118
Levothyroxine SodiumLevothyroxine Sodium5114
Meclizine HclMeclizine Hcl5141
MirtazapineMirtazapine5118
CephalexinCephalexin4744
Sildenafil CitrateSildenafil Citrate4713
Clonidine HclClonidine Hcl4428
EntecavirEntecavir41suppressed
PrednisonePrednisone3939
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav3836
Benazepril HclBenazepril Hcl3812
Hydroxyzine HclHydroxyzine Hcl3826
Pravastatin SodiumPravastatin Sodium3814
TradjentaLinagliptin38suppressed
Alcohol Prep PadsAlcohol Antiseptic Pads3716
KerendiaFinerenone36suppressed
Metoprolol TartrateMetoprolol Tartrate3414
Clobetasol PropionateClobetasol Propionate3312
PaxlovidNirmatrelvir/Ritonavir3131
Breo ElliptaFluticasone/Vilanterol30suppressed
ZenpepLipase/Protease/Amylase29suppressed
ClopidogrelClopidogrel Bisulfate28suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol28suppressed
InvokanaCanagliflozin28suppressed
LactuloseLactulose2814
Ventolin HfaAlbuterol Sulfate28suppressed
FenofibrateFenofibrate Nanocrystallized27suppressed
Omega-3 Acid Ethyl EstersOmega-3 Acid Ethyl Esters27suppressed
CarvedilolCarvedilol25suppressed
HydrochlorothiazideHydrochlorothiazide2412
Nifedipine ErNifedipine24suppressed
Olmesartan MedoxomilOlmesartan Medoxomil24suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter24suppressed
Zolpidem TartrateZolpidem Tartrate24suppressed
Azelastine HclAzelastine Hcl23suppressed
Clotrimazole-BetamethasoneClotrimazole/Betamethasone Dip2220
Dicyclomine HclDicyclomine Hcl2212
Lantus SolostarInsulin Glargine,hum.Rec.Anlog22suppressed
Neomycin-Polymyxin-DexamethNeomycin/Polymyxin B/Dexametha2221
VascepaIcosapent Ethyl22suppressed
VemlidyTenofovir Alafenamide22suppressed
NabumetoneNabumetone21suppressed
Sertraline HclSertraline Hcl20suppressed
BrilintaTicagrelor19suppressed
EzetimibeEzetimibe19suppressed
OlanzapineOlanzapine19suppressed
Ondansetron OdtOndansetron1919
Hydralazine HclHydralazine Hcl18suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide18suppressed
SymbicortBudesonide/Formoterol Fumarate18suppressed
Doxazosin MesylateDoxazosin Mesylate17suppressed
Proctozone-HcHydrocortisone17suppressed
ValacyclovirValacyclovir Hcl17suppressed
BenzonatateBenzonatate1615
LinzessLinaclotide16suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim1615
Memantine HclMemantine Hcl15suppressed
TrulicityDulaglutide15suppressed
AcyclovirAcyclovir1412
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril14suppressed
MupirocinMupirocin14suppressed
RybelsusSemaglutide14suppressed
Felodipine ErFelodipine13suppressed
Janumet XrSitagliptin Phos/Metformin Hcl13suppressed
KetoconazoleKetoconazole1311
ShingrixVaricella-Zoster Ge/As01b/Pf1311
Silver SulfadiazineSilver Sulfadiazine13suppressed
Tenofovir Disoproxil FumarateTenofovir Disoproxil Fumarate13suppressed
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr12suppressed
Doxycycline HyclateDoxycycline Hyclate1212
IndomethacinIndomethacin12suppressed
MeloxicamMeloxicam12suppressed
ValsartanValsartan12suppressed
Chlorhexidine GluconateChlorhexidine Gluconate11suppressed
Ciprofloxacin HclCiprofloxacin Hcl1111
Fluoxetine HclFluoxetine Hcl11suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate11suppressed
XiidraLifitegrast11suppressed

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 $1,884.14 · 57 records Amgen Inc. AIRSUPRA, AREXVY, BREZTRI, CAPVAXIVE, EVENITY, GARDASIL 9, ISTURISA, JARDIANCE, KRYSTEXXA, Kerendia, MOUNJARO, OTEZLA, Ozempic, REPATHA, Rybelsus, Talicia, VOQUEZNA, Xhance, ZENPEP, ZEPBOUND 12
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