Healthcare provider profile · identity verified

Si-Hoi Lam, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine · BRANFORD, CT · NPI 1477574929

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 Si-Hoi Lam, M.D. received $386.32 in general payments during 2025 across 18 reported records.

Amgen Inc. accounted for 72.2% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 11 associated products.

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

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 21 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 FARXIGA as an associated drug or biological on 106133 records involving 42906 distinct recipient NPIs. Public Medicare Part D data also shows 14 claims for Farxiga 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 MOUNJARO as an associated drug or biological on 186719 records involving 66436 distinct recipient NPIs. Public Medicare Part D data also shows 36 claims for Mounjaro 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 29 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

$386.32

18 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
Amgen Inc. Unresolved — no canonical attribution shown $278.8672.2%122025
Lilly USA, LLC Unresolved — no canonical attribution shown $39.8610.3%22025
Eisai Inc. Unresolved — no canonical attribution shown $17.864.6%12025
Novo Nordisk Inc Unresolved — no canonical attribution shown $17.744.6%12025
Xeris Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $16.394.2%12025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $15.614.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$386.3218

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
EVENITY
Normalized: evenity
Biological Amgen Inc. $184.08 7 2025
Source payment records
PROLIA
Normalized: prolia
Biological Amgen Inc. $101.37 4 2025
Source payment records
REPATHA
Normalized: repatha
Biological Amgen Inc. $94.78 5 2025
Source payment records
OTEZLA
Normalized: otezla
Drug Amgen Inc. $76.94 4 2025
Source payment records
MOUNJARO
Normalized: mounjaro
Drug Lilly USA, LLC $39.86 2 2025
Source payment records
ZEPBOUND
Normalized: zepbound
Drug Lilly USA, LLC $39.86 2 2025
Source payment records
Leqembi
Normalized: leqembi
Drug Eisai Inc. $17.86 1 2025
Source payment records
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $17.74 1 2025
Source payment records
Rybelsus
Normalized: rybelsus
Drug Novo Nordisk Inc $17.74 1 2025
Source payment records
GVOKE HYPOPEN
Normalized: gvoke hypopen
Drug Xeris Pharmaceuticals, Inc. $16.39 1 2025
Source payment records
FARXIGA
Normalized: farxiga
Drug AstraZeneca Pharmaceuticals LP $15.61 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 14
Beneficiary count suppressed
exact normalized Medicare Part D
MOUNJARO
mounjaro
2025 Mounjaro 2024 36
Beneficiary count suppressed
exact normalized Medicare Part D
Ozempic
ozempic
2025 Ozempic 2024 29
Beneficiary count suppressed
exact normalized Medicare Part D
PROLIA
prolia
2025 Prolia 2024 21 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
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
21 12
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
14 suppressed by CMS
Lilly USA, LLC
Exact reporting entity; no affiliate inference
2025 MOUNJARO
open payments reported associated product
CMS Open Payments — General Payments
186719 supporting records · 66436 recipient NPIs · example record 1186464455
Mounjaro · 2024
Exact normalized brand match · 1 Part D row
36 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
29 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 Calcium473130
Metoprolol SuccinateMetoprolol Succinate13541
LisinoprilLisinopril12636
HydrochlorothiazideHydrochlorothiazide11433
Rosuvastatin CalciumRosuvastatin Calcium11435
SimvastatinSimvastatin9525
Amlodipine BesylateAmlodipine Besylate9330
Levothyroxine SodiumLevothyroxine Sodium8021
AtenololAtenolol7820
Losartan PotassiumLosartan Potassium7623
Tamsulosin HclTamsulosin Hcl7419
Metformin HclMetformin Hcl7120
FurosemideFurosemide6321
EliquisApixaban6114
Trazodone HclTrazodone Hcl5012
Doxycycline HyclateDoxycycline Hyclate4837
ChlorthalidoneChlorthalidone4712
Sertraline HclSertraline Hcl4314
NaproxenNaproxen3815
LorazepamLorazepam37suppressed
MounjaroTirzepatide36suppressed
OmeprazoleOmeprazole3614
Metoprolol TartrateMetoprolol Tartrate31suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid30suppressed
AlprazolamAlprazolam29suppressed
OzempicSemaglutide29suppressed
Alendronate SodiumAlendronate Sodium28suppressed
SpironolactoneSpironolactone27suppressed
Pravastatin SodiumPravastatin Sodium25suppressed
Albuterol Sulfate HfaAlbuterol Sulfate21suppressed
Potassium ChloridePotassium Chloride21suppressed
ProliaDenosumab2112
Wixela InhubFluticasone Propion/Salmeterol19suppressed
AllopurinolAllopurinol18suppressed
ColchicineColchicine18suppressed
EzetimibeEzetimibe18suppressed
GabapentinGabapentin17suppressed
PrednisonePrednisone1711
NystatinNystatin16suppressed
Triamcinolone AcetonideTriamcinolone Acetonide1611
MirtazapineMirtazapine15suppressed
ClonazepamClonazepam14suppressed
FarxigaDapagliflozin Propanediol14suppressed
Fluticasone PropionateFluticasone Propionate14suppressed
Oxycodone HclOxycodone Hcl14suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide13suppressed
Montelukast SodiumMontelukast Sodium13suppressed
Novolog FlexpenInsulin Aspart13suppressed
Repatha SureclickEvolocumab13suppressed
Zolpidem TartrateZolpidem Tartrate13suppressed
CelecoxibCelecoxib12suppressed
Icosapent EthylIcosapent Ethyl12suppressed
Mometasone FuroateMometasone Furoate12suppressed
Pantoprazole SodiumPantoprazole Sodium12suppressed
Paroxetine HclParoxetine Hcl12suppressed
ValsartanValsartan12suppressed
Ciprofloxacin HclCiprofloxacin Hcl1111
Donepezil HclDonepezil Hcl11suppressed
Repatha SyringeEvolocumab11suppressed

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 $386.32 · 18 records Amgen Inc. EVENITY, FARXIGA, GVOKE HYPOPEN, Leqembi, MOUNJARO, OTEZLA, Ozempic, PROLIA, REPATHA, Rybelsus, ZEPBOUND 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