Healthcare provider profile · identity verified

Robert S Zimmerman, MD

Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism · CLEVELAND, OH · NPI 1689764706

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 S Zimmerman, MD received $5,948.69 in general payments during 2025 across 21 reported records.

Xeris Pharmaceuticals, Inc. accounted for 95.3% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 7 associated products.

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

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 184 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 241 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 118 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 Ozempic as an associated drug or biological on 261625 records involving 77793 distinct recipient NPIs. Public Medicare Part D data also shows 221 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

$5,948.69

21 reported records · 5 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
Xeris Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $5,669.1795.3%92025
Abbott Laboratories Unresolved — no canonical attribution shown $148.222.5%82025
Novo Nordisk Inc Unresolved — no canonical attribution shown $64.541.1%22025
Lilly USA, LLC Unresolved — no canonical attribution shown $34.630.6%12025
RECORDATI_RARE_DISEASES_INC. Unresolved — no canonical attribution shown $32.130.5%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Honoraria$5,334.003
Food and Beverage$500.1514
Education$64.542
Travel and Lodging$50.002

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
GVOKE HYPOPEN
Normalized: gvoke hypopen
Drug Xeris Pharmaceuticals, Inc. $5,669.17 9 2025
Source payment records
FREESTYLE LIBRE 3
Normalized: freestyle libre 3
Device Abbott Laboratories $148.22 8 2025
Source payment records
MOUNJARO
Normalized: mounjaro
Drug Lilly USA, LLC $34.63 1 2025
Source payment records
ZEPBOUND
Normalized: zepbound
Drug Lilly USA, LLC $34.63 1 2025
Source payment records
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $32.27 1 2025
Source payment records
Wegovy
Normalized: wegovy
Drug Novo Nordisk Inc $32.27 1 2025
Source payment records
SIGNIFOR LAR
Normalized: signifor lar
Drug RECORDATI_RARE_DISEASES_INC. $32.13 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
MOUNJARO
mounjaro
2025 Mounjaro 2024 241 exact normalized Medicare Part D
Ozempic
ozempic
2025 Ozempic 2024 221 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
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
184 41
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
241 41
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
118 24
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
221 43

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
Levothyroxine SodiumLevothyroxine Sodium30080
MounjaroTirzepatide24141
OzempicSemaglutide22143
JardianceEmpagliflozin18441
Atorvastatin CalciumAtorvastatin Calcium13944
Metformin Hcl ErMetformin Hcl12947
Lantus SolostarInsulin Glargine,hum.Rec.Anlog12249
TrulicityDulaglutide11824
SynthroidLevothyroxine Sodium9826
Metformin HclMetformin Hcl8626
Armour ThyroidThyroid,pork7912
LisinoprilLisinopril6724
Amlodipine BesylateAmlodipine Besylate6422
GlimepirideGlimepiride6424
Novolog FlexpenInsulin Aspart6016
Glipizide ErGlipizide5716
Humalog Kwikpen U-100Insulin Lispro5722
GabapentinGabapentin4814
JanuviaSitagliptin Phosphate4711
Losartan PotassiumLosartan Potassium4414
Ultra-Fine Mini Pen NeedlePen Needle, Diabetic4315
HumalogInsulin Lispro41suppressed
Insulin Lispro Kwikpen U-100Insulin Lispro4113
HydrochlorothiazideHydrochlorothiazide4013
AcarboseAcarbose3913
Liothyronine SodiumLiothyronine Sodium3711
Nano 2nd Gen Pen NeedlePen Needle, Diabetic3717
HydrocortisoneHydrocortisone33suppressed
Rosuvastatin CalciumRosuvastatin Calcium3314
Pioglitazone HclPioglitazone Hcl2813
TestosteroneTestosterone28suppressed
Tresiba Flextouch U-100Insulin Degludec28suppressed
GlipizideGlipizide25suppressed
Humalog Kwikpen U-200Insulin Lispro24suppressed
Ultra-Fine Short Pen NeedlePen Needle, Diabetic24suppressed
FarxigaDapagliflozin Propanediol23suppressed
Admelog SolostarInsulin Lispro22suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog22suppressed
EzetimibeEzetimibe22suppressed
Fiasp FlextouchInsulin Aspart (Niacinamide)22suppressed
LantusInsulin Glargine,hum.Rec.Anlog22suppressed
Omnipod 5 Dexg7g6 Pods (Gen 5)Insulin Pump Cart,auto,bt,g6/722suppressed
PrednisonePrednisone20suppressed
Toujeo SolostarInsulin Glargine,hum.Rec.Anlog19suppressed
Bupropion XlBupropion Hcl18suppressed
Pro Comfort Alcohol PadsAlcohol Antiseptic Pads18suppressed
Zolpidem TartrateZolpidem Tartrate18suppressed
Testosterone CypionateTestosterone Cypionate17suppressed
Gvoke Hypopen 2-PackGlucagon1613
Insulin LisproInsulin Lispro16suppressed
NovologInsulin Aspart16suppressed
OmeprazoleOmeprazole16suppressed
CarvedilolCarvedilol15suppressed
Naltrexone HclNaltrexone Hcl14suppressed
Ultra-Fine Micro Pen NeedlePen Needle, Diabetic14suppressed
Ultra-Fine Nano Pen NeedlePen Needle, Diabetic14suppressed
Pantoprazole SodiumPantoprazole Sodium13suppressed
Potassium ChloridePotassium Chloride13suppressed
Omega-3 Acid Ethyl EstersOmega-3 Acid Ethyl Esters12suppressed
Desmopressin AcetateDesmopressin (Nonrefrigerated)11suppressed
MethimazoleMethimazole11suppressed
PregabalinPregabalin11suppressed

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 $5,948.69 · 21 records Xeris Pharmaceuticals, Inc. FREESTYLE LIBRE 3, GVOKE HYPOPEN, MOUNJARO, Ozempic, SIGNIFOR LAR, Wegovy, 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