Healthcare provider profile · identity verified

Robert M Oberstein, MD, FACE

Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism · HARTFORD, CT · NPI 1568404267

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 Robert M Oberstein, MD, FACE received $85,461.47 in general payments during 2025 across 240 reported records.

Lilly USA, LLC accounted for 59.7% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 28 associated products.

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

ABBVIE 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 SYNTHROID as an associated drug or biological on 10655 records involving 4881 distinct recipient NPIs. Public Medicare Part D data also shows 846 claims for Synthroid by this doctor in 2024.

Amneal Pharmaceuticals 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 UNITHROID as an associated drug or biological on 7282 records involving 3230 distinct recipient NPIs. Public Medicare Part D data also shows 372 claims for Unithroid 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 272 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 986 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 29 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 16 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 288 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 68 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

$85,461.47

240 reported records · 16 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 $50,986.4359.7%1202025
Abbott Laboratories Unresolved — no canonical attribution shown $24,761.8529.0%732025
Ascendis Pharma Endocrinology Inc Unresolved — no canonical attribution shown $8,315.339.7%52025
Dexcom, Inc. Unresolved — no canonical attribution shown $422.690.5%92025
Novo Nordisk Inc Unresolved — no canonical attribution shown $370.310.4%152025
Sequel Med Tech, LLC Unresolved — no canonical attribution shown $185.810.2%22025
Medtronic, Inc. Medtronic, Inc.
exact · evidence 2025-07-22
$114.080.1%12025
Amgen Inc. Unresolved — no canonical attribution shown $75.700.1%42025
Insulet Corporation Unresolved — no canonical attribution shown $45.800.1%22025
BETA BIONICS, INC. Unresolved — no canonical attribution shown $42.630.1%22025
Amneal Pharmaceuticals LLC Unresolved — no canonical attribution shown $30.700.0%22025
Intra-Sana Laboratories Unresolved — no canonical attribution shown $24.730.0%12025
Almatica Pharma LLC Unresolved — no canonical attribution shown $22.440.0%12025
Neurocrine BioSciences, Inc. Unresolved — no canonical attribution shown $21.350.0%12025
ABBVIE INC. Unresolved — no canonical attribution shown $20.870.0%12025
Antares Pharma, Inc. Unresolved — no canonical attribution shown $20.750.0%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$56,477.0048
Compensation for serving as faculty or as a speaker for a medical education program$21,000.0128
Food and Beverage$4,322.64116
Travel and Lodging$3,661.8248

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 $50,149.67 110 2025
Source payment records
FREESTYLE LIBRE 3
Normalized: freestyle libre 3
Device Abbott Laboratories $24,761.85 73 2025
Source payment records
Yorvipath
Normalized: yorvipath
Drug Ascendis Pharma Endocrinology Inc $8,315.33 5 2025
Source payment records
ZEPBOUND
Normalized: zepbound
Drug Lilly USA, LLC $364.53 11 2025
Source payment records
Dexcom G6 Transmitter
Normalized: dexcom g6 transmitter
Medical Supply Dexcom, Inc. $279.61 8 2025
Source payment records
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $232.99 8 2025
Source payment records
TWIIST
Normalized: twiist
Device Sequel Med Tech, LLC $185.81 2 2025
Source payment records
DEXCOM G7 GSS (161)
Normalized: dexcom g7 gss 161
Medical Supply Dexcom, Inc. $143.08 1 2025
Source payment records
DEXCOM STELO GLUCOSE BIOSENSOR
Normalized: dexcom stelo glucose biosensor
Not specified Dexcom, Inc. $143.08 1 2025
Source payment records
MINIMED 780G
Normalized: minimed 780g
Device Medtronic, Inc. $114.08 1 2025
Source payment records
JARDIANCE
Normalized: jardiance
Drug Lilly USA, LLC $83.89 5 2025
Source payment records
Omnipod
Normalized: omnipod
Device Insulet Corporation $45.80 2 2025
Source payment records
iLet Bionic Pancreas
Normalized: ilet bionic pancreas
Device BETA BIONICS, INC. $42.63 2 2025
Source payment records
iLet Insulin Infusion Kit Contact Detach
Normalized: ilet insulin infusion kit contact detach
Device BETA BIONICS, INC. $42.63 2 2025
Source payment records
iLet Insulin Infusion Kit Inset
Normalized: ilet insulin infusion kit inset
Device BETA BIONICS, INC. $42.63 2 2025
Source payment records
TEPEZZA
Normalized: tepezza
Biological Amgen Inc. $42.42 2 2025
Source payment records
UNITHROID
Normalized: unithroid
Drug Amneal Pharmaceuticals LLC $30.70 2 2025
Source payment records
GLYCATE
Normalized: glycate
Drug Intra-Sana Laboratories $24.73 1 2025
Source payment records
RELTONE 200 MG
Normalized: reltone 200 mg
Drug Intra-Sana Laboratories $24.73 1 2025
Source payment records
RELTONE 400 MG
Normalized: reltone 400 mg
Drug Intra-Sana Laboratories $24.73 1 2025
Source payment records
Wegovy
Normalized: wegovy
Drug Novo Nordisk Inc $23.93 1 2025
Source payment records
TERIPARATIDE
Normalized: teriparatide
Drug Almatica Pharma LLC $22.44 1 2025
Source payment records
CRENESSITY
Normalized: crenessity
Drug Neurocrine BioSciences, Inc. $21.35 1 2025
Source payment records
SYNTHROID
Normalized: synthroid
Drug ABBVIE INC. $20.87 1 2025
Source payment records
XYOSTED
Normalized: xyosted
Drug Antares Pharma, Inc. $20.75 1 2025
Source payment records
REPATHA
Normalized: repatha
Biological Amgen Inc. $18.97 1 2025
Source payment records
EVENITY
Normalized: evenity
Biological Amgen Inc. $14.31 1 2025
Source payment records
PROLIA
Normalized: prolia
Biological Amgen Inc. $14.31 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 272 exact normalized Medicare Part D
MOUNJARO
mounjaro
2025 Mounjaro 2024 986 exact normalized Medicare Part D
Ozempic
ozempic
2025 Ozempic 2024 288 exact normalized Medicare Part D
SYNTHROID
synthroid
2025 Synthroid 2024 846 exact normalized Medicare Part D
TERIPARATIDE
teriparatide
2025 Teriparatide 2024 14
Beneficiary count suppressed
exact normalized Medicare Part D
UNITHROID
unithroid
2025 Unithroid 2024 372 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
ABBVIE INC.
Exact reporting entity; no affiliate inference
2025 SYNTHROID
open payments reported associated product
CMS Open Payments — General Payments
10655 supporting records · 4881 recipient NPIs · example record 1201352636
Synthroid · 2024
Exact normalized brand match · 1 Part D row
846 211
Amneal Pharmaceuticals LLC
Exact reporting entity; no affiliate inference
2025 UNITHROID
open payments reported associated product
CMS Open Payments — General Payments
7282 supporting records · 3230 recipient NPIs · example record 1220525525
Unithroid · 2024
Exact normalized brand match · 1 Part D row
372 100
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
272 71
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
986 148
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
29 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
16 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
288 65
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
68 15

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
MounjaroTirzepatide986148
SynthroidLevothyroxine Sodium846211
Levothyroxine SodiumLevothyroxine Sodium697187
UnithroidLevothyroxine Sodium372100
OzempicSemaglutide28865
JardianceEmpagliflozin27271
Metformin HclMetformin Hcl24475
Rosuvastatin CalciumRosuvastatin Calcium22762
FarxigaDapagliflozin Propanediol21751
Metformin Hcl ErMetformin Hcl19459
Atorvastatin CalciumAtorvastatin Calcium17148
Pioglitazone HclPioglitazone Hcl16343
EzetimibeEzetimibe15644
MethimazoleMethimazole14638
Nano 2nd Gen Pen NeedlePen Needle, Diabetic9745
Liothyronine SodiumLiothyronine Sodium9329
Omnipod 5 Dexg7g6 Pods (Gen 5)Insulin Pump Cart,auto,bt,g6/79019
LisinoprilLisinopril7623
Amlodipine BesylateAmlodipine Besylate7019
Tresiba Flextouch U-100Insulin Degludec7022
RybelsusSemaglutide6815
Lantus SolostarInsulin Glargine,hum.Rec.Anlog6622
Tresiba Flextouch U-200Insulin Degludec6517
HydrochlorothiazideHydrochlorothiazide6015
GlimepirideGlimepiride5421
TestosteroneTestosterone4912
PrednisonePrednisone4813
Humalog Kwikpen U-100Insulin Lispro4414
Toujeo SolostarInsulin Glargine,hum.Rec.Anlog4413
Janumet XrSitagliptin Phos/Metformin Hcl4313
CalcitriolCalcitriol4113
NovologInsulin Aspart3914
VascepaIcosapent Ethyl3811
HumalogInsulin Lispro36suppressed
IrbesartanIrbesartan3613
Olmesartan MedoxomilOlmesartan Medoxomil36suppressed
LevoxylLevothyroxine Sodium35suppressed
Testosterone CypionateTestosterone Cypionate35suppressed
Candesartan CilexetilCandesartan Cilexetil34suppressed
Alendronate SodiumAlendronate Sodium33suppressed
SpironolactoneSpironolactone33suppressed
SimvastatinSimvastatin32suppressed
Novolog FlexpenInsulin Aspart3014
RamiprilRamipril29suppressed
TradjentaLinagliptin29suppressed
TrulicityDulaglutide29suppressed
Losartan PotassiumLosartan Potassium27suppressed
Xigduo XrDapaglifloz Propaned/Metformin26suppressed
LyumjevInsulin Lispro-Aabc25suppressed
AllopurinolAllopurinol24suppressed
Ultra-Fine Mini Pen NeedlePen Needle, Diabetic24suppressed
Synjardy XrEmpagliflozin/Metformin Hcl22suppressed
JanuviaSitagliptin Phosphate21suppressed
SynjardyEmpagliflozin/Metformin Hcl20suppressed
ValsartanValsartan20suppressed
Humalog Kwikpen U-200Insulin Lispro19suppressed
Metoprolol SuccinateMetoprolol Succinate19suppressed
Omega-3 Acid Ethyl EstersOmega-3 Acid Ethyl Esters19suppressed
Toujeo Max SolostarInsulin Glargine,hum.Rec.Anlog19suppressed
RepaglinideRepaglinide18suppressed
Risedronate SodiumRisedronate Sodium18suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog17suppressed
Insulin Lispro Kwikpen U-100Insulin Lispro17suppressed
Fenofibric AcidFenofibric Acid (Choline)16suppressed
FiaspInsulin Aspart (Niacinamide)16suppressed
Repatha SureclickEvolocumab16suppressed
ChlorthalidoneChlorthalidone15suppressed
Ultra-Fine Nano Pen NeedlePen Needle, Diabetic15suppressed
Pravastatin SodiumPravastatin Sodium14suppressed
TeriparatideTeriparatide14suppressed
Fludrocortisone AcetateFludrocortisone Acetate13suppressed
DapagliflozinDapagliflozin Propanediol12suppressed
Desmopressin AcetateDesmopressin Acetate12suppressed
Insulin LisproInsulin Lispro12suppressed
Nutropin Aq NuspinSomatropin12suppressed
Omnipod Dash Pods (Gen 4)Insulin Pump Cart,cont Inf,bt12suppressed
TymlosAbaloparatide12suppressed

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 $85,461.47 · 240 records Lilly USA, LLC CRENESSITY, DEXCOM G7 GSS (161), DEXCOM STELO GLUCOSE BIOSENSOR, Dexcom G6 Transmitter, EVENITY, FREESTYLE LIBRE 3, GLYCATE, JARDIANCE, MINIMED 780G, MOUNJARO, Omnipod, Ozempic, PROLIA, RELTONE 200 MG, RELTONE 400 MG, REPATHA, SYNTHROID, TEPEZZA, TERIPARATIDE, TWIIST, UNITHROID, Wegovy, XYOSTED, Yorvipath, ZEPBOUND, iLet Bionic Pancreas, iLet Insulin Infusion Kit Contact Detach, iLet Insulin Infusion Kit Inset 8
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