Healthcare provider profile · identity verified

Kiet Loc, M.D.

Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology · LAGUNA HILLS, CA · NPI 1609041581

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 Kiet Loc, M.D. received $5,521.03 in general payments during 2025 across 242 reported records.

UCB, Inc. accounted for 14.0% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 49 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Gamunex-C, Nurtec Odt, Rexulti, Ultomiris.

Alexion 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 ULTOMIRIS as an associated drug or biological on 24281 records involving 10608 distinct recipient NPIs. Public Medicare Part D data also shows 13 claims for Ultomiris by this doctor in 2024.

Grifols 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 Gamunex-C as an associated drug or biological on 3977 records involving 2134 distinct recipient NPIs. Public Medicare Part D data also shows 38 claims for Gamunex-C by this doctor in 2024.

Lundbeck 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 REXULTI as an associated drug or biological on 71829 records involving 25812 distinct recipient NPIs. Public Medicare Part D data also shows 32 claims for Rexulti by this doctor in 2024.

Otsuka America Pharmaceutical, 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 REXULTI as an associated drug or biological on 160756 records involving 46288 distinct recipient NPIs. Public Medicare Part D data also shows 32 claims for Rexulti 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 NURTEC ODT as an associated drug or biological on 217574 records involving 54025 distinct recipient NPIs. Public Medicare Part D data also shows 13 claims for Nurtec Odt 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 GAMMAGARD LIQUID as an associated drug or biological on 29 records involving 8 distinct recipient NPIs. Public Medicare Part D data also shows 13 claims for Gammagard Liquid by this doctor in 2024.

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

Payment overview · 2025

General Payments

$5,521.03

242 reported records · 36 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
UCB, Inc. Unresolved — no canonical attribution shown $772.8514.0%302025
Neurocrine BioSciences, Inc. Unresolved — no canonical attribution shown $595.6510.8%212025
Biogen, Inc. Unresolved — no canonical attribution shown $435.687.9%192025
PFIZER INC. Unresolved — no canonical attribution shown $297.565.4%162025
SK Life Science, Inc. SK Life Science, Inc.
exact · evidence 2025-04-03
$281.765.1%182025
Octapharma USA, Inc. Unresolved — no canonical attribution shown $243.624.4%42025
Lilly USA, LLC Unresolved — no canonical attribution shown $242.164.4%102025
Eisai Inc. Unresolved — no canonical attribution shown $235.284.3%102025
Amgen Inc. Unresolved — no canonical attribution shown $218.284.0%82025
ABBVIE INC. Unresolved — no canonical attribution shown $200.873.6%142025
ARGENX US, INC. Unresolved — no canonical attribution shown $184.323.3%72025
Janssen Biotech, Inc. Unresolved — no canonical attribution shown $178.073.2%102025
Axsome Therapeutics, Inc. Unresolved — no canonical attribution shown $176.223.2%62025
EMD Serono, Inc. Unresolved — no canonical attribution shown $174.483.2%82025
Lundbeck LLC Unresolved — no canonical attribution shown $166.313.0%132025
LivaNova USA, Inc. Unresolved — no canonical attribution shown $136.082.5%62025
Otsuka America Pharmaceutical, Inc. Unresolved — no canonical attribution shown $120.032.2%52025
Alexion Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $109.952.0%42025
Takeda Pharmaceuticals U.S.A., Inc. Unresolved — no canonical attribution shown $100.031.8%42025
MDD US Operations, LLC Unresolved — no canonical attribution shown $68.271.2%22025
Merz Pharmaceuticals, LLC Unresolved — no canonical attribution shown $62.941.1%22025
Celgene Corporation Unresolved — no canonical attribution shown $60.271.1%22025
Amneal Pharmaceuticals LLC Unresolved — no canonical attribution shown $55.341.0%42025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $48.220.9%22025
Grifols USA, LLC Unresolved — no canonical attribution shown $47.920.9%22025
Teva Pharmaceuticals USA, Inc. Unresolved — no canonical attribution shown $47.110.8%32025
Genentech USA, Inc. Unresolved — no canonical attribution shown $45.830.8%22025
Tanabe Pharma America, Inc. Unresolved — no canonical attribution shown $39.890.7%22025
Vanda Pharmaceuticals Inc. Unresolved — no canonical attribution shown $32.670.6%12025
Impel Pharmaceuticals LLC Unresolved — no canonical attribution shown $25.800.5%12025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $24.610.5%12025
Boston Scientific Corporation Unresolved — no canonical attribution shown $23.040.4%12025
REVANCE THERAPEUTICS, INC. Unresolved — no canonical attribution shown $22.090.4%12025
SCILEX PHARMACEUTICALS INC. Unresolved — no canonical attribution shown $17.000.3%12025
Azurity Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $16.990.3%12025
Abbott Laboratories Unresolved — no canonical attribution shown $13.840.2%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$5,521.03242

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
INGREZZA
Normalized: ingrezza
Drug Neurocrine BioSciences, Inc. $595.65 21 2025
Source payment records
Rystiggo
Normalized: rystiggo
Drug UCB, Inc. $507.16 20 2025
Source payment records
LEQEMBI
Normalized: leqembi
Drug Biogen, Inc., Eisai Inc. $445.10 20 2025
Source payment records
NURTEC ODT
Normalized: nurtec odt
Drug PFIZER INC. $260.76 14 2025
Source payment records
ZAVZPRET
Normalized: zavzpret
Drug PFIZER INC. $260.76 14 2025
Source payment records
REXULTI
Normalized: rexulti
Drug Lundbeck LLC, Otsuka America Pharmaceutical, Inc. $230.28 16 2025
Source payment records
Briviact
Normalized: briviact
Drug UCB, Inc. $203.89 8 2025
Source payment records
VUMERITY
Normalized: vumerity
Drug Biogen, Inc. $199.35 8 2025
Source payment records
OCTAGAM IMMUNE GLOBULIN (HUMAN)
Normalized: octagam immune globulin human
Biological Octapharma USA, Inc. $188.16 2 2025
Source payment records
UPLIZNA
Normalized: uplizna
Biological Amgen Inc. $187.12 7 2025
Source payment records
KISUNLA
Normalized: kisunla
Drug Lilly USA, LLC $186.50 8 2025
Source payment records
VYVGART HYTRULO
Normalized: vyvgart hytrulo
Drug ARGENX US, INC. $184.32 7 2025
Source payment records
Symbravo
Normalized: symbravo
Drug Axsome Therapeutics, Inc. $176.22 6 2025
Source payment records
UBRELVY
Normalized: ubrelvy
Drug ABBVIE INC. $131.14 5 2025
Source payment records
VNS THERAPY SENTIVA MODEL 1000 GENERATOR
Normalized: vns therapy sentiva model 1000 generator
Device LivaNova USA, Inc. $114.59 5 2025
Source payment records
QULIPTA
Normalized: qulipta
Drug ABBVIE INC. $111.02 6 2025
Source payment records
HYQVIA
Normalized: hyqvia
Biological Takeda Pharmaceuticals U.S.A., Inc. $100.03 4 2025
Source payment records
AMYVID
Normalized: amyvid
Drug Lilly USA, LLC $97.09 5 2025
Source payment records
ULTOMIRIS
Normalized: ultomiris
Biological Alexion Pharmaceuticals, Inc. $93.33 3 2025
Source payment records
PANZYGA
Normalized: panzyga
Biological Octapharma USA, Inc., PFIZER INC. $92.26 4 2025
Source payment records
TYSABRI
Normalized: tysabri
Biological Biogen, Inc. $84.79 3 2025
Source payment records
BOTOX
Normalized: botox
Biological ABBVIE INC. $69.73 9 2025
Source payment records
Gocovri
Normalized: gocovri
Drug MDD US Operations, LLC $68.27 2 2025
Source payment records
Nayzilam
Normalized: nayzilam
Drug UCB, Inc. $61.80 2 2025
Source payment records
ZEPOSIA
Normalized: zeposia
Drug Celgene Corporation $60.27 2 2025
Source payment records
VYEPTI
Normalized: vyepti
Biological Lundbeck LLC $56.06 2 2025
Source payment records
EMGALITY
Normalized: emgality
Drug Lilly USA, LLC $55.66 2 2025
Source payment records
REYVOW
Normalized: reyvow
Drug Lilly USA, LLC $55.66 2 2025
Source payment records
CREXONT
Normalized: crexont
Drug Amneal Pharmaceuticals LLC $55.34 4 2025
Source payment records
Gamunex-C
Normalized: gamunex c
Biological Grifols USA, LLC $47.92 2 2025
Source payment records
AUSTEDO XR
Normalized: austedo xr
Drug Teva Pharmaceuticals USA, Inc. $47.11 3 2025
Source payment records
Ocrevus Zunovo
Normalized: ocrevus zunovo
Biological Genentech USA, Inc. $45.83 2 2025
Source payment records
Radicava
Normalized: radicava
Drug Tanabe Pharma America, Inc. $39.89 2 2025
Source payment records
INBRIJA
Normalized: inbrija
Drug Merz Pharmaceuticals, LLC $34.46 1 2025
Source payment records
PONVORY
Normalized: ponvory
Drug Vanda Pharmaceuticals Inc. $32.67 1 2025
Source payment records
Xeomin
Normalized: xeomin
Biological Merz Pharmaceuticals, LLC $28.48 1 2025
Source payment records
AVONEX
Normalized: avonex
Biological Biogen, Inc. $27.89 1 2025
Source payment records
QALSODY
Normalized: qalsody
Drug Biogen, Inc. $26.51 1 2025
Source payment records
SPINRAZA
Normalized: spinraza
Biological Biogen, Inc. $26.51 1 2025
Source payment records
TRUDHESA
Normalized: trudhesa
Drug Impel Pharmaceuticals LLC $25.80 1 2025
Source payment records
KESIMPTA
Normalized: kesimpta
Drug Novartis Pharmaceuticals Corporation $24.61 1 2025
Source payment records
General - DBS
Normalized: general dbs
Device Boston Scientific Corporation $23.04 1 2025
Source payment records
DAXXIFY
Normalized: daxxify
Drug REVANCE THERAPEUTICS, INC. $22.09 1 2025
Source payment records
VNS Therapy
Normalized: vns therapy
Device LivaNova USA, Inc. $21.49 1 2025
Source payment records
WAINUA
Normalized: wainua
Drug AstraZeneca Pharmaceuticals LP $20.55 1 2025
Source payment records
ZTLido
Normalized: ztlido
Drug SCILEX PHARMACEUTICALS INC. $17.00 1 2025
Source payment records
HORIZANT
Normalized: horizant
Drug Azurity Pharmaceuticals, Inc. $16.99 1 2025
Source payment records
KOSELUGO
Normalized: koselugo
Drug Alexion Pharmaceuticals, Inc. $16.62 1 2025
Source payment records
INFINITY
Normalized: infinity
Device Abbott Laboratories $13.84 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
Gamunex-C
gamunex c
2025 Gamunex-C 2024 38
Beneficiary count suppressed
exact normalized Medicare Part D
NURTEC ODT
nurtec odt
2025 Nurtec Odt 2024 13
Beneficiary count suppressed
exact normalized Medicare Part D
REXULTI
rexulti
2025 Rexulti 2024 32
Beneficiary count suppressed
exact normalized Medicare Part D
ULTOMIRIS
ultomiris
2025 Ultomiris 2024 13
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
Alexion Pharmaceuticals, Inc.
Exact reporting entity; no affiliate inference
2025 ULTOMIRIS
open payments reported associated product
CMS Open Payments — General Payments
24281 supporting records · 10608 recipient NPIs · example record 1202912926
Ultomiris · 2024
Exact normalized brand match · 1 Part D row
13 suppressed by CMS
Grifols USA, LLC
Exact reporting entity; no affiliate inference
2025 Gamunex-C
open payments reported associated product
CMS Open Payments — General Payments
3977 supporting records · 2134 recipient NPIs · example record 1249529381
Gamunex-C · 2024
Exact normalized brand match · 1 Part D row
38 suppressed by CMS
Lundbeck LLC
Exact reporting entity; no affiliate inference
2025 REXULTI
open payments reported associated product
CMS Open Payments — General Payments
71829 supporting records · 25812 recipient NPIs · example record 1251759986
Rexulti · 2024
Exact normalized brand match · 1 Part D row
32 suppressed by CMS
Otsuka America Pharmaceutical, Inc.
Exact reporting entity; no affiliate inference
2025 REXULTI
open payments reported associated product
CMS Open Payments — General Payments
160756 supporting records · 46288 recipient NPIs · example record 1227267708
Rexulti · 2024
Exact normalized brand match · 1 Part D row
32 suppressed by CMS
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 NURTEC ODT
open payments reported associated product
CMS Open Payments — General Payments
217574 supporting records · 54025 recipient NPIs · example record 1228794063
Nurtec Odt · 2024
Exact normalized brand match · 1 Part D row
13 suppressed by CMS
Takeda Pharmaceuticals U.S.A., Inc.
Exact reporting entity; no affiliate inference
2025 GAMMAGARD LIQUID
open payments reported associated product
CMS Open Payments — General Payments
29 supporting records · 8 recipient NPIs · example record 1223786557
Gammagard Liquid · 2024
Exact normalized brand match · 1 Part D row
13 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
Memantine HclMemantine Hcl515172
Donepezil HclDonepezil Hcl500169
GabapentinGabapentin26891
PregabalinPregabalin20671
Carbidopa-LevodopaCarbidopa/Levodopa16345
LevetiracetamLevetiracetam12138
PrimidonePrimidone12037
Amitriptyline HclAmitriptyline Hcl9630
Escitalopram OxalateEscitalopram Oxalate9628
Propranolol HclPropranolol Hcl9632
Divalproex Sodium ErDivalproex Sodium7624
BaclofenBaclofen7236
Quetiapine FumarateQuetiapine Fumarate7021
MethylprednisoloneMethylprednisolone6754
MirtazapineMirtazapine6720
ClopidogrelClopidogrel Bisulfate6124
Buspirone HclBuspirone Hcl5721
Gamunex-CImmune Globul G/Gly/Iga Avg 4638suppressed
ZonisamideZonisamide37suppressed
DiazepamDiazepam3621
Carbidopa-Levodopa ErCarbidopa/Levodopa3413
Duloxetine HclDuloxetine Hcl3311
Galantamine HbrGalantamine Hbr33suppressed
Aimovig AutoinjectorErenumab-Aooe32suppressed
Divalproex SodiumDivalproex Sodium32suppressed
RexultiBrexpiprazole32suppressed
Sumatriptan SuccinateSumatriptan Succinate32suppressed
RivastigmineRivastigmine3112
Trazodone HclTrazodone Hcl2715
EntacaponeEntacapone25suppressed
LamotrigineLamotrigine25suppressed
Nortriptyline HclNortriptyline Hcl25suppressed
Propranolol Hcl ErPropranolol Hcl24suppressed
PhenobarbitalPhenobarbital23suppressed
TopiramateTopiramate23suppressed
RivastigmineRivastigmine Tartrate21suppressed
Pyridostigmine BromidePyridostigmine Bromide20suppressed
Carbamazepine ErCarbamazepine19suppressed
RizatriptanRizatriptan Benzoate19suppressed
AzathioprineAzathioprine18suppressed
Zolpidem TartrateZolpidem Tartrate18suppressed
CarbamazepineCarbamazepine16suppressed
CopaxoneGlatiramer Acetate16suppressed
OxcarbazepineOxcarbazepine16suppressed
Sertraline HclSertraline Hcl16suppressed
Sodium Chloride0.9 % Sodium Chloride15suppressed
Gammagard LiquidImmun Glob G(Igg)/Gly/Iga Ov5013suppressed
Nurtec OdtRimegepant Sulfate13suppressed
UltomirisRavulizumab-Cwvz13suppressed
LorazepamLorazepam12suppressed
Midodrine HclMidodrine Hcl12suppressed
Fluoxetine HclFluoxetine Hcl11suppressed
GlycopyrrolateGlycopyrrolate11suppressed

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 $5,521.03 · 242 records UCB, Inc. AMYVID, AUSTEDO XR, AVONEX, BOTOX, Briviact, CREXONT, DAXXIFY, EMGALITY, Gamunex-C, General - DBS, Gocovri, HORIZANT, HYQVIA, INBRIJA, INFINITY, INGREZZA, KESIMPTA, KISUNLA, KOSELUGO, LEQEMBI, NURTEC ODT, Nayzilam, OCTAGAM IMMUNE GLOBULIN (HUMAN), Ocrevus Zunovo, PANZYGA, PONVORY, QALSODY, QULIPTA, REXULTI, REYVOW, Radicava, Rystiggo, SPINRAZA, Symbravo, TRUDHESA, TYSABRI, UBRELVY, ULTOMIRIS, UPLIZNA, VNS THERAPY SENTIVA MODEL 1000 GENERATOR, VNS Therapy, VUMERITY, VYEPTI, VYVGART HYTRULO, WAINUA, Xeomin, ZAVZPRET, ZEPOSIA, ZTLido 6
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