Healthcare provider profile · identity verified

James Joseph Chamberlain, MD

Allopathic & Osteopathic Physicians|Internal Medicine · SALT LAKE CITY, UT · NPI 1093805681

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 James Joseph Chamberlain, MD received $12,880.61 in general payments during 2025 across 74 reported records.

Tandem Diabetes Care, Inc. accounted for 83.3% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 23 associated products.

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

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 16 claims for Farxiga by this doctor in 2024.

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 121 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 JARDIANCE as an associated drug or biological on 47708 records involving 23833 distinct recipient NPIs. Public Medicare Part D data also shows 121 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 MOUNJARO as an associated drug or biological on 186719 records involving 66436 distinct recipient NPIs. Public Medicare Part D data also shows 75 claims for Mounjaro 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 34 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 Fiasp as an associated drug or biological on 15 records involving 15 distinct recipient NPIs. Public Medicare Part D data also shows 11 claims for Fiasp 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 130 claims for Ozempic 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 15 claims for Rybelsus by this doctor in 2024.

SANOFI-AVENTIS U.S. 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 LANTUS as an associated drug or biological on 12 records involving 11 distinct recipient NPIs. Public Medicare Part D data also shows 39 claims for Lantus by this doctor in 2024.

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

Payment overview · 2025

General Payments

$12,880.61

74 reported records · 19 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
Tandem Diabetes Care, Inc. Unresolved — no canonical attribution shown $10,730.5183.3%162025
Abbott Laboratories Unresolved — no canonical attribution shown $386.833.0%72025
SANOFI-AVENTIS U.S. LLC Unresolved — no canonical attribution shown $374.682.9%32025
Dexcom, Inc. Unresolved — no canonical attribution shown $169.361.3%42025
BETA BIONICS, INC. Unresolved — no canonical attribution shown $162.911.3%72025
Ascensia Diabetes Care Us Inc. Unresolved — no canonical attribution shown $143.811.1%22025
Novo Nordisk Inc Unresolved — no canonical attribution shown $142.451.1%32025
Lilly USA, LLC Unresolved — no canonical attribution shown $117.530.9%72025
Sequel Med Tech, LLC Unresolved — no canonical attribution shown $102.540.8%22025
Boehringer Ingelheim Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $101.850.8%52025
Insulet Corporation Unresolved — no canonical attribution shown $101.380.8%22025
Corcept Therapeutics Unresolved — no canonical attribution shown $85.630.7%32025
Medtronic, Inc. Medtronic, Inc.
exact · evidence 2025-07-22
$68.320.5%42025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $57.070.4%32025
Xeris Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $43.270.3%22025
CeQur Corporation Unresolved — no canonical attribution shown $36.210.3%12025
ABBVIE INC. Unresolved — no canonical attribution shown $19.970.2%12025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $19.120.1%12025
Merck Sharp & Dohme LLC Unresolved — no canonical attribution shown $17.170.1%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$8,325.004
Food and Beverage$2,581.4263
Travel and Lodging$1,974.197

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
t:slim X2 Insulin Pump with Control-IQ
Normalized: t slim x2 insulin pump with control iq
Device Tandem Diabetes Care, Inc. $10,730.51 16 2025
Source payment records
FREESTYLE LIBRE 3
Normalized: freestyle libre 3
Device Abbott Laboratories $386.83 7 2025
Source payment records
TZIELD
Normalized: tzield
Biological SANOFI-AVENTIS U.S. LLC $374.68 3 2025
Source payment records
Dexcom G6 Transmitter
Normalized: dexcom g6 transmitter
Medical Supply Dexcom, Inc. $169.36 4 2025
Source payment records
iLet Bionic Pancreas
Normalized: ilet bionic pancreas
Device BETA BIONICS, INC. $162.91 7 2025
Source payment records
iLet Insulin Infusion Kit Contact Detach
Normalized: ilet insulin infusion kit contact detach
Device BETA BIONICS, INC. $162.91 7 2025
Source payment records
iLet Insulin Infusion Kit Inset
Normalized: ilet insulin infusion kit inset
Device BETA BIONICS, INC. $162.91 7 2025
Source payment records
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $142.45 3 2025
Source payment records
JARDIANCE
Normalized: jardiance
Drug Boehringer Ingelheim Pharmaceuticals, Inc., Lilly USA, LLC $132.60 6 2025
Source payment records
Rybelsus
Normalized: rybelsus
Drug Novo Nordisk Inc $128.21 2 2025
Source payment records
TWIIST
Normalized: twiist
Device Sequel Med Tech, LLC $102.54 2 2025
Source payment records
Omnipod
Normalized: omnipod
Device Insulet Corporation $101.38 2 2025
Source payment records
Korlym
Normalized: korlym
Drug Corcept Therapeutics $85.63 3 2025
Source payment records
MOUNJARO
Normalized: mounjaro
Drug Lilly USA, LLC $68.33 5 2025
Source payment records
ZEPBOUND
Normalized: zepbound
Drug Lilly USA, LLC $68.33 5 2025
Source payment records
MINIMED 780G
Normalized: minimed 780g
Device Medtronic, Inc. $68.32 4 2025
Source payment records
LEQVIO
Normalized: leqvio
Drug Novartis Pharmaceuticals Corporation $57.07 3 2025
Source payment records
GVOKE HYPOPEN
Normalized: gvoke hypopen
Drug Xeris Pharmaceuticals, Inc. $43.27 2 2025
Source payment records
CeQur Simplicity
Normalized: cequr simplicity
Device CeQur Corporation $36.21 1 2025
Source payment records
QULIPTA
Normalized: qulipta
Drug ABBVIE INC. $19.97 1 2025
Source payment records
UBRELVY
Normalized: ubrelvy
Drug ABBVIE INC. $19.97 1 2025
Source payment records
BREZTRI
Normalized: breztri
Drug AstraZeneca Pharmaceuticals LP $19.12 1 2025
Source payment records
CAPVAXIVE
Normalized: capvaxive
Biological Merck Sharp & Dohme LLC $17.17 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 121 exact normalized Medicare Part D
MOUNJARO
mounjaro
2025 Mounjaro 2024 75 exact normalized Medicare Part D
Ozempic
ozempic
2025 Ozempic 2024 130 exact normalized Medicare Part D
Rybelsus
rybelsus
2025 Rybelsus 2024 15
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
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
16 suppressed by CMS
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
121 32
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
121 32
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
75 12
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
34 suppressed by CMS
Novo Nordisk Inc
Exact reporting entity; no affiliate inference
2025 Fiasp
open payments reported associated product
CMS Open Payments — General Payments
15 supporting records · 15 recipient NPIs · example record 1188262936
Fiasp · 2024
Exact normalized brand match · 1 Part D row
11 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
130 26
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
15 suppressed by CMS
SANOFI-AVENTIS U.S. LLC
Exact reporting entity; no affiliate inference
2025 LANTUS
open payments reported associated product
CMS Open Payments — General Payments
12 supporting records · 11 recipient NPIs · example record 1233196856
Lantus · 2024
Exact normalized brand match · 1 Part D row
39 11

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
Metformin HclMetformin Hcl20860
GlimepirideGlimepiride15742
Atorvastatin CalciumAtorvastatin Calcium13842
OzempicSemaglutide13026
Metformin Hcl ErMetformin Hcl12537
JardianceEmpagliflozin12132
SimvastatinSimvastatin10226
JanuviaSitagliptin Phosphate8920
Rosuvastatin CalciumRosuvastatin Calcium8928
Lantus SolostarInsulin Glargine,hum.Rec.Anlog8824
MounjaroTirzepatide7512
Tresiba Flextouch U-100Insulin Degludec7525
LisinoprilLisinopril7421
Levothyroxine SodiumLevothyroxine Sodium7022
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog6914
Losartan PotassiumLosartan Potassium6620
HumalogInsulin Lispro6519
Omnipod 5 Dexg7g6 Pods (Gen 5)Insulin Pump Cart,auto,bt,g6/76012
Humalog Kwikpen U-100Insulin Lispro5622
Novolog FlexpenInsulin Aspart5117
Insulin LisproInsulin Lispro41suppressed
Amlodipine BesylateAmlodipine Besylate3913
LantusInsulin Glargine,hum.Rec.Anlog3911
GabapentinGabapentin38suppressed
NovologInsulin Aspart3617
TrulicityDulaglutide34suppressed
Toujeo SolostarInsulin Glargine,hum.Rec.Anlog32suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide30suppressed
GlipizideGlipizide28suppressed
Escitalopram OxalateEscitalopram Oxalate26suppressed
Fiasp FlextouchInsulin Aspart (Niacinamide)25suppressed
TradjentaLinagliptin25suppressed
Tresiba Flextouch U-200Insulin Degludec23suppressed
Ultra-Fine Short Pen NeedlePen Needle, Diabetic2311
Bupropion XlBupropion Hcl21suppressed
Insulin Lispro Kwikpen U-100Insulin Lispro20suppressed
Ultra-Fine Mini Pen NeedlePen Needle, Diabetic20suppressed
Zolpidem TartrateZolpidem Tartrate20suppressed
Glipizide ErGlipizide19suppressed
Insulin SyringeSyring-Needl,disp,insul,0.3 Ml19suppressed
OmeprazoleOmeprazole18suppressed
Paroxetine HclParoxetine Hcl18suppressed
FarxigaDapagliflozin Propanediol16suppressed
Pantoprazole SodiumPantoprazole Sodium16suppressed
Tamsulosin HclTamsulosin Hcl16suppressed
Insulin Aspart FlexpenInsulin Aspart15suppressed
JanumetSitagliptin Phos/Metformin Hcl15suppressed
Nano 2nd Gen Pen NeedlePen Needle, Diabetic15suppressed
RybelsusSemaglutide15suppressed
Sertraline HclSertraline Hcl15suppressed
Gvoke Hypopen 2-PackGlucagon14suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide14suppressed
Amitriptyline HclAmitriptyline Hcl13suppressed
Bydureon BciseExenatide Microspheres13suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium13suppressed
FamotidineFamotidine13suppressed
Humulin R U-500Insulin Regular, Human13suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen13suppressed
Morphine Sulfate ErMorphine Sulfate13suppressed
PregabalinPregabalin13suppressed
RamiprilRamipril13suppressed
Droplet Pen NeedlePen Needle, Diabetic12suppressed
Pravastatin SodiumPravastatin Sodium12suppressed
AtenololAtenolol11suppressed
FiaspInsulin Aspart (Niacinamide)11suppressed
HydrochlorothiazideHydrochlorothiazide11suppressed
Insulin SyringeSyringe-Needle,insulin,0.5 Ml11suppressed

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 $12,880.61 · 74 records Tandem Diabetes Care, Inc. BREZTRI, CAPVAXIVE, CeQur Simplicity, Dexcom G6 Transmitter, FREESTYLE LIBRE 3, GVOKE HYPOPEN, JARDIANCE, Korlym, LEQVIO, MINIMED 780G, MOUNJARO, Omnipod, Ozempic, QULIPTA, Rybelsus, TWIIST, TZIELD, UBRELVY, ZEPBOUND, iLet Bionic Pancreas, iLet Insulin Infusion Kit Contact Detach, iLet Insulin Infusion Kit Inset, t:slim X2 Insulin Pump with Control-IQ 9
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