Healthcare provider profile · identity verified

Daniel Katselnik, MD

Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism · SHAVANO PARK, TX · NPI 1861674855

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 Daniel Katselnik, MD received $79,873.08 in general payments during 2025 across 220 reported records.

SANOFI-AVENTIS U.S. LLC accounted for 45.7% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 44 associated products.

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

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 172 claims for Synthroid by this doctor in 2024.

Amphastar 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 BAQSIMI as an associated drug or biological on 80 records involving 63 distinct recipient NPIs. Public Medicare Part D data also shows 13 claims for Baqsimi 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 89 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 102 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 102 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 77 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 64 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 259 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 43 claims for Rybelsus by this doctor in 2024.

Radius Health, 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 Tymlos as an associated drug or biological on 17199 records involving 7328 distinct recipient NPIs. Public Medicare Part D data also shows 18 claims for Tymlos by this doctor in 2024.

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

Payment overview · 2025

General Payments

$79,873.08

220 reported records · 37 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
SANOFI-AVENTIS U.S. LLC Unresolved — no canonical attribution shown $36,470.7545.7%402025
Dexcom, Inc. Unresolved — no canonical attribution shown $12,856.4616.1%162025
Novo Nordisk Inc Unresolved — no canonical attribution shown $11,795.4514.8%252025
Siemens Medical Solutions USA, Inc. Unresolved — no canonical attribution shown $6,455.408.1%52025
Boehringer Ingelheim Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $6,368.078.0%132025
Lilly USA, LLC Unresolved — no canonical attribution shown $3,166.574.0%192025
Sequel Med Tech, LLC Unresolved — no canonical attribution shown $862.761.1%242025
Amgen Inc. Unresolved — no canonical attribution shown $221.700.3%162025
CeQur Corporation Unresolved — no canonical attribution shown $203.580.2%12025
Madrigal Pharmaceuticals Unresolved — no canonical attribution shown $141.410.2%92025
Ascensia Diabetes Care Us Inc. Unresolved — no canonical attribution shown $123.380.1%12025
Ascendis Pharma Endocrinology Inc Unresolved — no canonical attribution shown $110.370.1%42025
Echosens North America, Inc. Unresolved — no canonical attribution shown $99.230.1%12025
Mannkind Corporation Unresolved — no canonical attribution shown $88.440.1%52025
KYOWA KIRIN, INC. Unresolved — no canonical attribution shown $77.960.1%42025
Corcept Therapeutics Unresolved — no canonical attribution shown $77.110.1%22025
Soleno Therapeutics, Inc. Unresolved — no canonical attribution shown $72.580.1%32025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $66.790.1%32025
Almatica Pharma LLC Unresolved — no canonical attribution shown $60.040.1%22025
Averitas Pharma Inc. Unresolved — no canonical attribution shown $55.900.1%32025
Insulet Corporation Unresolved — no canonical attribution shown $53.440.1%32025
ABBVIE INC. Unresolved — no canonical attribution shown $42.210.1%32025
BETA BIONICS, INC. Unresolved — no canonical attribution shown $40.980.1%22025
RECORDATI_RARE_DISEASES_INC. Unresolved — no canonical attribution shown $38.680.1%22025
Regeneron Healthcare Solutions, Inc. Unresolved — no canonical attribution shown $36.760.1%12025
Radius Health, Inc. Unresolved — no canonical attribution shown $36.750.1%22025
Tandem Diabetes Care, Inc. Unresolved — no canonical attribution shown $35.540.0%12025
Neurocrine BioSciences, Inc. Unresolved — no canonical attribution shown $31.650.0%12025
Rhythm Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $31.420.0%12025
Ionis Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $26.190.0%12025
RGH Enterprises LLC Unresolved — no canonical attribution shown $24.000.0%12025
PFIZER INC. Unresolved — no canonical attribution shown $20.670.0%12025
Acella Pharmaceuticals, LLC Unresolved — no canonical attribution shown $18.710.0%12025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $16.410.0%12025
SHIELD THERAPEUTICS INC Unresolved — no canonical attribution shown $16.060.0%12025
Amphastar Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $15.650.0%12025
Alexion Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $14.010.0%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$50,762.7520
Compensation for serving as faculty or as a speaker for a medical education program$11,107.003
Travel and Lodging$7,191.1522
Food and Beverage$5,595.91172
Consulting Fee$5,200.002
Education$16.271

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
TZIELD
Normalized: tzield
Biological SANOFI-AVENTIS U.S. LLC $36,470.75 40 2025
Source payment records
DEXCOM G7 GSS (161)
Normalized: dexcom g7 gss 161
Medical Supply Dexcom, Inc. $12,668.39 9 2025
Source payment records
DEXCOM STELO GLUCOSE BIOSENSOR
Normalized: dexcom stelo glucose biosensor
Not specified Dexcom, Inc. $12,668.39 9 2025
Source payment records
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $11,691.87 20 2025
Source payment records
JARDIANCE
Normalized: jardiance
Drug Boehringer Ingelheim Pharmaceuticals, Inc., Lilly USA, LLC $7,854.65 26 2025
Source payment records
Atellica IM 1300 Analyzer
Normalized: atellica im 1300 analyzer
Device Siemens Medical Solutions USA, Inc. $6,455.40 5 2025
Source payment records
TWIIST
Normalized: twiist
Device Sequel Med Tech, LLC $862.76 24 2025
Source payment records
CeQur Simplicity
Normalized: cequr simplicity
Device CeQur Corporation $203.58 1 2025
Source payment records
Dexcom G6 Transmitter
Normalized: dexcom g6 transmitter
Medical Supply Dexcom, Inc. $188.07 7 2025
Source payment records
Rybelsus
Normalized: rybelsus
Drug Novo Nordisk Inc $144.43 8 2025
Source payment records
REZDIFFRA
Normalized: rezdiffra
Drug Madrigal Pharmaceuticals $141.41 9 2025
Source payment records
TEPEZZA
Normalized: tepezza
Biological Amgen Inc. $118.99 6 2025
Source payment records
Wegovy
Normalized: wegovy
Drug Novo Nordisk Inc $103.58 5 2025
Source payment records
Fibroscan
Normalized: fibroscan
Device Echosens North America, Inc. $99.23 1 2025
Source payment records
AFREZZA
Normalized: afrezza
Drug Mannkind Corporation $88.44 5 2025
Source payment records
Yorvipath
Normalized: yorvipath
Drug Ascendis Pharma Endocrinology Inc $83.80 3 2025
Source payment records
MOUNJARO
Normalized: mounjaro
Drug Lilly USA, LLC $79.99 4 2025
Source payment records
CRYSVITA
Normalized: crysvita
Drug KYOWA KIRIN, INC. $77.96 4 2025
Source payment records
Korlym
Normalized: korlym
Drug Corcept Therapeutics $77.11 2 2025
Source payment records
VYKAT XR
Normalized: vykat xr
Drug Soleno Therapeutics, Inc. $72.58 3 2025
Source payment records
LEQVIO
Normalized: leqvio
Drug Novartis Pharmaceuticals Corporation $66.79 3 2025
Source payment records
REPATHA
Normalized: repatha
Biological Amgen Inc. $60.05 6 2025
Source payment records
TERIPARATIDE
Normalized: teriparatide
Drug Almatica Pharma LLC $60.04 2 2025
Source payment records
QUTENZA
Normalized: qutenza
Drug Averitas Pharma Inc. $55.90 3 2025
Source payment records
Omnipod
Normalized: omnipod
Device Insulet Corporation $53.44 3 2025
Source payment records
EVENITY
Normalized: evenity
Biological Amgen Inc. $42.66 4 2025
Source payment records
iLet Bionic Pancreas
Normalized: ilet bionic pancreas
Device BETA BIONICS, INC. $40.98 2 2025
Source payment records
iLet Insulin Infusion Kit Contact Detach
Normalized: ilet insulin infusion kit contact detach
Device BETA BIONICS, INC. $40.98 2 2025
Source payment records
iLet Insulin Infusion Kit Inset
Normalized: ilet insulin infusion kit inset
Device BETA BIONICS, INC. $40.98 2 2025
Source payment records
ISTURISA
Normalized: isturisa
Drug RECORDATI_RARE_DISEASES_INC. $38.68 2 2025
Source payment records
EVKEEZA
Normalized: evkeeza
Biological Regeneron Healthcare Solutions, Inc. $36.76 1 2025
Source payment records
Tymlos
Normalized: tymlos
Drug Radius Health, Inc. $36.75 2 2025
Source payment records
t:slim X2 Insulin Pump with Control-IQ
Normalized: t slim x2 insulin pump with control iq
Device Tandem Diabetes Care, Inc. $35.54 1 2025
Source payment records
PROLIA
Normalized: prolia
Biological Amgen Inc. $32.74 3 2025
Source payment records
CRENESSITY
Normalized: crenessity
Drug Neurocrine BioSciences, Inc. $31.65 1 2025
Source payment records
IMCIVREE
Normalized: imcivree
Drug Rhythm Pharmaceuticals, Inc. $31.42 1 2025
Source payment records
SYNTHROID
Normalized: synthroid
Drug ABBVIE INC. $28.66 2 2025
Source payment records
TRYNGOLZA
Normalized: tryngolza
Drug Ionis Pharmaceuticals, Inc. $26.19 1 2025
Source payment records
GENOTROPIN
Normalized: genotropin
Drug PFIZER INC. $20.67 1 2025
Source payment records
SOMAVERT
Normalized: somavert
Drug PFIZER INC. $20.67 1 2025
Source payment records
NP Thyroid 60
Normalized: np thyroid 60
Drug Acella Pharmaceuticals, LLC $18.71 1 2025
Source payment records
LOKELMA
Normalized: lokelma
Drug AstraZeneca Pharmaceuticals LP $16.41 1 2025
Source payment records
ACCRUFER
Normalized: accrufer
Drug SHIELD THERAPEUTICS INC $16.06 1 2025
Source payment records
STRENSIQ
Normalized: strensiq
Biological Alexion Pharmaceuticals, Inc. $14.01 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 102 exact normalized Medicare Part D
MOUNJARO
mounjaro
2025 Mounjaro 2024 77 exact normalized Medicare Part D
Ozempic
ozempic
2025 Ozempic 2024 259 exact normalized Medicare Part D
Rybelsus
rybelsus
2025 Rybelsus 2024 43
Beneficiary count suppressed
exact normalized Medicare Part D
SYNTHROID
synthroid
2025 Synthroid 2024 172 exact normalized Medicare Part D
Tymlos
tymlos
2025 Tymlos 2024 18
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
172 63
Amphastar Pharmaceuticals, Inc.
Exact reporting entity; no affiliate inference
2025 BAQSIMI
open payments reported associated product
CMS Open Payments — General Payments
80 supporting records · 63 recipient NPIs · example record 1222321403
Baqsimi · 2024
Exact normalized brand match · 1 Part D row
13 11
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
89 30
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
102 37
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
102 37
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
77 25
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
64 22
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
259 70
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
43 suppressed by CMS
Radius Health, Inc.
Exact reporting entity; no affiliate inference
2025 Tymlos
open payments reported associated product
CMS Open Payments — General Payments
17199 supporting records · 7328 recipient NPIs · example record 1249501587
Tymlos · 2024
Exact normalized brand match · 1 Part D row
18 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
OzempicSemaglutide25970
Levothyroxine SodiumLevothyroxine Sodium20598
SynthroidLevothyroxine Sodium17263
Rosuvastatin CalciumRosuvastatin Calcium14266
Metformin HclMetformin Hcl13860
Atorvastatin CalciumAtorvastatin Calcium10448
JardianceEmpagliflozin10237
FarxigaDapagliflozin Propanediol8930
MounjaroTirzepatide7725
TrulicityDulaglutide6422
Liothyronine SodiumLiothyronine Sodium5820
Metformin Hcl ErMetformin Hcl5126
Xigduo XrDapaglifloz Propaned/Metformin4614
RybelsusSemaglutide43suppressed
HydrochlorothiazideHydrochlorothiazide37suppressed
LisinoprilLisinopril3715
Tresiba Flextouch U-100Insulin Degludec3718
UnithroidLevothyroxine Sodium3616
Pioglitazone HclPioglitazone Hcl3413
Omnipod 5 Dexg7g6 Pods (Gen 5)Insulin Pump Cart,auto,bt,g6/732suppressed
EzetimibeEzetimibe2812
Amlodipine BesylateAmlodipine Besylate2713
Alendronate SodiumAlendronate Sodium2611
Toujeo SolostarInsulin Glargine,hum.Rec.Anlog24suppressed
Losartan PotassiumLosartan Potassium22suppressed
Nano 2nd Gen Pen NeedlePen Needle, Diabetic2212
Vitamin D2Ergocalciferol (Vitamin D2)22suppressed
SimvastatinSimvastatin20suppressed
Synjardy XrEmpagliflozin/Metformin Hcl19suppressed
TymlosAbaloparatide18suppressed
Insulin LisproInsulin Lispro17suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog17suppressed
Tresiba Flextouch U-200Insulin Degludec17suppressed
VascepaIcosapent Ethyl17suppressed
Novolog FlexpenInsulin Aspart16suppressed
GabapentinGabapentin14suppressed
BaqsimiGlucagon1311
Potassium ChloridePotassium Chloride13suppressed
Humalog Kwikpen U-100Insulin Lispro12suppressed
MethimazoleMethimazole12suppressed
Ultra-Fine Nano Pen NeedlePen Needle, Diabetic11suppressed

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 $79,873.08 · 220 records SANOFI-AVENTIS U.S. LLC ACCRUFER, AFREZZA, Atellica IM 1300 Analyzer, CRENESSITY, CRYSVITA, CeQur Simplicity, DEXCOM G7 GSS (161), DEXCOM STELO GLUCOSE BIOSENSOR, Dexcom G6 Transmitter, EVENITY, EVKEEZA, Fibroscan, GENOTROPIN, IMCIVREE, ISTURISA, JARDIANCE, Korlym, LEQVIO, LOKELMA, MOUNJARO, NP Thyroid 60, Omnipod, Ozempic, PROLIA, QUTENZA, REPATHA, REZDIFFRA, Rybelsus, SOMAVERT, STRENSIQ, SYNTHROID, TEPEZZA, TERIPARATIDE, TRYNGOLZA, TWIIST, TZIELD, Tymlos, VYKAT XR, Wegovy, Yorvipath, iLet Bionic Pancreas, iLet Insulin Infusion Kit Contact Detach, iLet Insulin Infusion Kit Inset, t:slim X2 Insulin Pump with Control-IQ 10
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