Healthcare provider profile · identity verified

Lawrence D Callanan, MD

Internal Medicine · SAINT PAUL, MN · NPI 1124077680

Profile state: partd only 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

We did not find matching Open Payments records for this doctor in 2025.

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

Payment overview · 2025

General Payments

We did not find matching Open Payments records for this doctor in the selected program year.

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.

Analysis 1 · Payment-linked products

Products named in Open Payments records

No payment-linked product analysis is available because no matching General Payment records were found for the selected year.

Public prescribing for products named in payments

There is no explicit payment-product set available for a Part D comparison.

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.

There is no payer-company set available for this comparison.

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

Brand	Generic	Claims	Beneficiaries
Atorvastatin Calcium	Atorvastatin Calcium	679	187
Rosuvastatin Calcium	Rosuvastatin Calcium	548	162
Lisinopril	Lisinopril	389	110
Amlodipine Besylate	Amlodipine Besylate	363	98
Levothyroxine Sodium	Levothyroxine Sodium	354	88
Omeprazole	Omeprazole	297	85
Losartan Potassium	Losartan Potassium	275	79
Hydrochlorothiazide	Hydrochlorothiazide	210	61
Simvastatin	Simvastatin	205	48
Tamsulosin Hcl	Tamsulosin Hcl	203	64
Metoprolol Succinate	Metoprolol Succinate	185	49
Metformin Hcl	Metformin Hcl	175	47
Atenolol	Atenolol	171	43
Warfarin Sodium	Warfarin Sodium	162	37
Furosemide	Furosemide	137	36
Escitalopram Oxalate	Escitalopram Oxalate	119	40
Metformin Hcl Er	Metformin Hcl	104	31
Gabapentin	Gabapentin	102	32
Trazodone Hcl	Trazodone Hcl	102	34
Eliquis	Apixaban	92	31
Metoprolol Tartrate	Metoprolol Tartrate	88	25
Sertraline Hcl	Sertraline Hcl	88	22
Glimepiride	Glimepiride	84	22
Zolpidem Tartrate	Zolpidem Tartrate	82	15
Albuterol Sulfate Hfa	Albuterol Sulfate	81	36
Allopurinol	Allopurinol	80	24
Alendronate Sodium	Alendronate Sodium	77	23
Clopidogrel	Clopidogrel Bisulfate	72	18
Xarelto	Rivaroxaban	70	23
Pantoprazole Sodium	Pantoprazole Sodium	69	26
Potassium Chloride	Potassium Chloride	66	22
Famotidine	Famotidine	65	25
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	63	15
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	58	16
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	56	15
Spironolactone	Spironolactone	49	17
Tramadol Hcl	Tramadol Hcl	49	12
Jardiance	Empagliflozin	48	suppressed
Finasteride	Finasteride	46	12
Fluticasone Propionate	Fluticasone Propionate	43	18
Mirtazapine	Mirtazapine	43	13
Montelukast Sodium	Montelukast Sodium	42	suppressed
Ozempic	Semaglutide	41	suppressed
Valsartan	Valsartan	41	suppressed
Pravastatin Sodium	Pravastatin Sodium	40	suppressed
Prednisone	Prednisone	40	14
Celecoxib	Celecoxib	39	12
Januvia	Sitagliptin Phosphate	36	suppressed
Lorazepam	Lorazepam	35	suppressed
Methocarbamol	Methocarbamol	35	suppressed
Pregabalin	Pregabalin	34	suppressed
Venlafaxine Hcl Er	Venlafaxine Hcl	33	suppressed
Alprazolam	Alprazolam	32	11
Carvedilol	Carvedilol	31	suppressed
Colchicine	Colchicine	31	14
Valacyclovir	Valacyclovir Hcl	31	13
Glipizide Er	Glipizide	30	suppressed
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	30	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	29	suppressed
Lansoprazole	Lansoprazole	29	suppressed
Paroxetine Hcl	Paroxetine Hcl	29	suppressed
Citalopram Hbr	Citalopram Hydrobromide	27	suppressed
Clonidine Hcl	Clonidine Hcl	27	suppressed
Divalproex Sodium	Divalproex Sodium	27	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	27	suppressed
Butalbital-Acetaminophen-Caffe	Butalb/Acetaminophen/Caffeine	26	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	26	suppressed
Nitroglycerin	Nitroglycerin	26	16
Clonazepam	Clonazepam	24	suppressed
Terazosin Hcl	Terazosin Hcl	24	suppressed
Duloxetine Hcl	Duloxetine Hcl	23	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	23	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	21	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	21	13
Ketoconazole	Ketoconazole	21	11
Lovastatin	Lovastatin	21	suppressed
Nano 2nd Gen Pen Needle	Pen Needle, Diabetic	21	suppressed
Doxycycline Hyclate	Doxycycline Hyclate	20	17
Risperidone	Risperidone	20	suppressed
Fluoxetine Hcl	Fluoxetine Hcl	19	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	19	suppressed
Cephalexin	Cephalexin	18	15
Esomeprazole Magnesium	Esomeprazole Magnesium	18	suppressed
Naproxen	Naproxen	18	suppressed
Bupropion Xl	Bupropion Hcl	17	suppressed
Carbidopa-Levodopa	Carbidopa/Levodopa	17	suppressed
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	17	suppressed
Paxlovid	Nirmatrelvir/Ritonavir	17	17
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	16	14
Baclofen	Baclofen	16	suppressed
Ciclopirox	Ciclopirox	16	suppressed
Ezetimibe	Ezetimibe	16	suppressed
Fluticasone Propionate Hfa	Fluticasone Propionate	16	suppressed
Midodrine Hcl	Midodrine Hcl	16	suppressed
Tizanidine Hcl	Tizanidine Hcl	16	suppressed
Irbesartan	Irbesartan	15	suppressed
Klor-Con M20	Potassium Chloride	15	suppressed
Propranolol Hcl	Propranolol Hcl	15	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	15	11
Amoxicillin	Amoxicillin	14	suppressed
Indapamide	Indapamide	14	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	14	11
Oxycodone Hcl	Oxycodone Hcl	14	11
Single Use Swab	Alcohol Antiseptic Pads	14	suppressed
Aripiprazole	Aripiprazole	13	suppressed
Azithromycin	Azithromycin	13	suppressed
Carbidopa-Levodopa Er	Carbidopa/Levodopa	12	suppressed
Diclofenac Sodium	Diclofenac Sodium	12	suppressed
Nystatin	Nystatin	12	suppressed
Pioglitazone Hcl	Pioglitazone Hcl	12	suppressed
Synthroid	Levothyroxine Sodium	12	suppressed
Tolterodine Tartrate Er	Tolterodine Tartrate	12	suppressed
Wixela Inhub	Fluticasone Propion/Salmeterol	12	suppressed
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	11	suppressed
Bupropion Hcl	Bupropion Hcl	11	suppressed
Bupropion Hcl Sr	Bupropion Hcl	11	suppressed
Buspirone Hcl	Buspirone Hcl	11	suppressed
Estradiol	Estradiol	11	suppressed
Fenofibrate	Fenofibrate	11	suppressed
Myrbetriq	Mirabegron	11	suppressed
Temazepam	Temazepam	11	suppressed

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.

Year	General Payments	Main payer	Explicit products	Company overlaps	Part D coverage
2025	—	—	—	—	—
2024	—	—	—	—	Complete

Questions to ask

Questions you could discuss with your doctor

Are there reasonable alternatives I should understand when we discuss treatment options?
How should I interpret the industry-payment records shown here in the context of my care?

These are general questions generated from reviewed templates. They are not personalized medical advice.

Sources and limitations

How to read this page

Payment and Medicare prescribing data can cover different years; every comparison shows both years explicitly.
Part D does not represent a doctor’s entire practice; it excludes many patients and is subject to CMS public-release thresholds.
Company–drug relationships must have an auditable source, a precise relationship type, and a valid evidence period. Unresolved mappings are not published.
Generic drug claims are not attributed to a specific manufacturer without manufacturer-level evidence.
When a source extract is incomplete, missing rows are never treated as proof of no payments or no prescriptions.

Loaded source releases

Dataset	Year	Publication	Source
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