Healthcare provider profile · identity verified

Laurence H Klein, MD

Hospitalist · TURNERS FALLS, MA · NPI 1285621144

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
Eliquis	Apixaban	302	33
Levothyroxine Sodium	Levothyroxine Sodium	255	42
Gabapentin	Gabapentin	190	34
Atorvastatin Calcium	Atorvastatin Calcium	122	37
Amlodipine Besylate	Amlodipine Besylate	117	29
Trazodone Hcl	Trazodone Hcl	111	20
Metformin Hcl	Metformin Hcl	95	22
Lisinopril	Lisinopril	82	14
Jardiance	Empagliflozin	80	suppressed
Sertraline Hcl	Sertraline Hcl	76	19
Metoprolol Succinate	Metoprolol Succinate	69	13
Tamsulosin Hcl	Tamsulosin Hcl	61	17
Furosemide	Furosemide	56	19
Carvedilol	Carvedilol	52	12
Donepezil Hcl	Donepezil Hcl	51	suppressed
Mirtazapine	Mirtazapine	51	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	48	suppressed
Divalproex Sodium Er	Divalproex Sodium	47	suppressed
Escitalopram Oxalate	Escitalopram Oxalate	46	12
Citalopram Hbr	Citalopram Hydrobromide	45	suppressed
Metoprolol Tartrate	Metoprolol Tartrate	43	13
Risperidone	Risperidone	41	suppressed
Xarelto	Rivaroxaban	39	suppressed
Januvia	Sitagliptin Phosphate	38	suppressed
Rosuvastatin Calcium	Rosuvastatin Calcium	37	suppressed
Ropinirole Hcl	Ropinirole Hcl	36	suppressed
Ondansetron Odt	Ondansetron	35	suppressed
Multaq	Dronedarone Hcl	33	suppressed
Nystatin	Nystatin	32	11
Memantine Hcl	Memantine Hcl	31	suppressed
Montelukast Sodium	Montelukast Sodium	31	suppressed
Levetiracetam	Levetiracetam	30	suppressed
Cephalexin	Cephalexin	29	suppressed
Amiodarone Hcl	Amiodarone Hcl	28	suppressed
Simvastatin	Simvastatin	27	suppressed
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	26	suppressed
Myrbetriq	Mirabegron	26	suppressed
Tradjenta	Linagliptin	26	suppressed
Potassium Chloride	Potassium Chloride	25	suppressed
Bupropion Hcl Sr	Bupropion Hcl	24	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	24	suppressed
Pantoprazole Sodium	Pantoprazole Sodium	23	suppressed
Digoxin	Digoxin	22	suppressed
Farxiga	Dapagliflozin Propanediol	22	suppressed
Omeprazole	Omeprazole	22	suppressed
Spironolactone	Spironolactone	21	suppressed
Finasteride	Finasteride	20	suppressed
Bupropion Xl	Bupropion Hcl	19	suppressed
Meclizine Hcl	Meclizine Hcl	19	suppressed
Duloxetine Hcl	Duloxetine Hcl	18	suppressed
Torsemide	Torsemide	18	suppressed
Carbidopa-Levodopa	Carbidopa/Levodopa	17	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	17	suppressed
Buspirone Hcl	Buspirone Hcl	16	suppressed
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	16	suppressed
Fenofibrate	Fenofibrate	15	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	15	suppressed
Fluoxetine Hcl	Fluoxetine Hcl	14	suppressed
Levocetirizine Dihydrochloride	Levocetirizine Dihydrochloride	14	suppressed
Losartan Potassium	Losartan Potassium	14	suppressed
Pravastatin Sodium	Pravastatin Sodium	14	suppressed
Calcitriol	Calcitriol	13	suppressed
Ciclopirox	Ciclopirox Olamine	13	suppressed
Clonidine Hcl	Clonidine Hcl	13	suppressed
Clozapine	Clozapine	13	suppressed
Quetiapine Fumarate Er	Quetiapine Fumarate	13	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	13	suppressed
Trulicity	Dulaglutide	13	suppressed
Xifaxan	Rifaximin	13	suppressed
Clotrimazole-Betamethasone	Clotrimazole/Betamethasone Dip	12	suppressed
Fludrocortisone Acetate	Fludrocortisone Acetate	12	suppressed
Lurasidone Hcl	Lurasidone Hcl	12	suppressed
Metformin Hcl Er	Metformin Hcl	12	suppressed
Nitrofurantoin	Nitrofurantoin Macrocrystal	12	suppressed
Ondansetron Hcl	Ondansetron Hcl	12	suppressed
Prednisone	Prednisone	12	suppressed
Breo Ellipta	Fluticasone/Vilanterol	11	suppressed
Doxepin Hcl	Doxepin Hcl	11	suppressed
Famotidine	Famotidine	11	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	11	suppressed
Novolog Flexpen	Insulin Aspart	11	suppressed
Pioglitazone Hcl	Pioglitazone Hcl	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