Healthcare provider profile · identity verified

Peter Michael Grondziowski, MD

Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism · PITTSBURGH, PA · NPI 1447250469

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 Peter Michael Grondziowski, MD received $1,170.61 in general payments during 2025 across 30 reported records.

Tandem Diabetes Care, Inc. accounted for 21.7% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 16 associated products.

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

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 66 claims for Synthroid 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 35 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 35 claims for Jardiance 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 46 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

$1,170.61

30 reported records · 14 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 $253.5821.7%32025
Madrigal Pharmaceuticals Unresolved — no canonical attribution shown $138.6711.8%12025
Novo Nordisk Inc Unresolved — no canonical attribution shown $138.5911.8%22025
SANOFI-AVENTIS U.S. LLC Unresolved — no canonical attribution shown $119.6410.2%32025
Lilly USA, LLC Unresolved — no canonical attribution shown $117.1010.0%62025
Amgen Inc. Unresolved — no canonical attribution shown $107.509.2%12025
ABBVIE INC. Unresolved — no canonical attribution shown $98.088.4%42025
Dexcom, Inc. Unresolved — no canonical attribution shown $57.734.9%32025
Esperion Therapeutics, Inc. Unresolved — no canonical attribution shown $43.763.7%22025
Boehringer Ingelheim Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $20.751.8%12025
Neurocrine BioSciences, Inc. Unresolved — no canonical attribution shown $19.491.7%12025
Bayer Healthcare Pharmaceuticals Inc. Unresolved — no canonical attribution shown $19.231.6%12025
Ascendis Pharma Endocrinology Inc Unresolved — no canonical attribution shown $18.841.6%12025
Amneal Pharmaceuticals LLC Unresolved — no canonical attribution shown $17.651.5%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$1,170.6130

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. $253.58 3 2025
Source payment records
REZDIFFRA
Normalized: rezdiffra
Drug Madrigal Pharmaceuticals $138.67 1 2025
Source payment records
TZIELD
Normalized: tzield
Biological SANOFI-AVENTIS U.S. LLC $119.64 3 2025
Source payment records
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $117.47 1 2025
Source payment records
REPATHA
Normalized: repatha
Biological Amgen Inc. $107.50 1 2025
Source payment records
MOUNJARO
Normalized: mounjaro
Drug Lilly USA, LLC $94.55 5 2025
Source payment records
ZEPBOUND
Normalized: zepbound
Drug Lilly USA, LLC $94.55 5 2025
Source payment records
Dexcom G6 Transmitter
Normalized: dexcom g6 transmitter
Medical Supply Dexcom, Inc. $57.73 3 2025
Source payment records
NEXLETOL
Normalized: nexletol
Drug Esperion Therapeutics, Inc. $43.76 2 2025
Source payment records
JARDIANCE
Normalized: jardiance
Drug Boehringer Ingelheim Pharmaceuticals, Inc., Lilly USA, LLC $43.30 2 2025
Source payment records
UBRELVY
Normalized: ubrelvy
Drug ABBVIE INC. $27.93 1 2025
Source payment records
Wegovy
Normalized: wegovy
Drug Novo Nordisk Inc $21.12 1 2025
Source payment records
CRENESSITY
Normalized: crenessity
Drug Neurocrine BioSciences, Inc. $19.49 1 2025
Source payment records
Kerendia
Normalized: kerendia
Drug Bayer Healthcare Pharmaceuticals Inc. $19.23 1 2025
Source payment records
Yorvipath
Normalized: yorvipath
Drug Ascendis Pharma Endocrinology Inc $18.84 1 2025
Source payment records
UNITHROID
Normalized: unithroid
Drug Amneal Pharmaceuticals LLC $17.65 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 35
Beneficiary count suppressed
exact normalized Medicare Part D
Ozempic
ozempic
2025 Ozempic 2024 46
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
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
66 19
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
35 suppressed by CMS
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
35 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
46 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
Metformin HclMetformin Hcl8227
SynthroidLevothyroxine Sodium6619
Rosuvastatin CalciumRosuvastatin Calcium5218
OzempicSemaglutide46suppressed
Levothyroxine SodiumLevothyroxine Sodium4012
Tresiba Flextouch U-200Insulin Degludec37suppressed
JardianceEmpagliflozin35suppressed
Atorvastatin CalciumAtorvastatin Calcium3411
IrbesartanIrbesartan31suppressed
Pioglitazone HclPioglitazone Hcl29suppressed
Amlodipine BesylateAmlodipine Besylate27suppressed
LisinoprilLisinopril27suppressed
Metformin Hcl ErMetformin Hcl25suppressed
FarxigaDapagliflozin Propanediol24suppressed
GlimepirideGlimepiride24suppressed
AllopurinolAllopurinol21suppressed
NovologInsulin Aspart19suppressed
HydrocortisoneHydrocortisone17suppressed
Pravastatin SodiumPravastatin Sodium16suppressed
HydrochlorothiazideHydrochlorothiazide15suppressed
Ultra-Fine Mini Pen NeedlePen Needle, Diabetic15suppressed
Omnipod 5 Dexg7g6 Pods (Gen 5)Insulin Pump Cart,auto,bt,g6/713suppressed
Toujeo SolostarInsulin Glargine,hum.Rec.Anlog13suppressed
Humalog Kwikpen U-100Insulin Lispro12suppressed
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 $1,170.61 · 30 records Tandem Diabetes Care, Inc. CRENESSITY, Dexcom G6 Transmitter, JARDIANCE, Kerendia, MOUNJARO, NEXLETOL, Ozempic, REPATHA, REZDIFFRA, TZIELD, UBRELVY, UNITHROID, Wegovy, Yorvipath, ZEPBOUND, t:slim X2 Insulin Pump with Control-IQ 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