Healthcare provider profile · identity verified

Douglas K Klamp, MD

Internal Medicine · SCRANTON, PA · NPI 1063491728

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	277	68
Levothyroxine Sodium	Levothyroxine Sodium	162	42
Metoprolol Succinate	Metoprolol Succinate	162	36
Metformin Hcl	Metformin Hcl	131	38
Lisinopril	Lisinopril	126	29
Pravastatin Sodium	Pravastatin Sodium	107	32
Eliquis	Apixaban	102	17
Losartan Potassium	Losartan Potassium	101	33
Famotidine	Famotidine	94	26
Amlodipine Besylate	Amlodipine Besylate	89	25
Omeprazole	Omeprazole	79	21
Clopidogrel	Clopidogrel Bisulfate	75	24
Allopurinol	Allopurinol	67	17
Sertraline Hcl	Sertraline Hcl	59	suppressed
Albuterol Sulfate Hfa	Albuterol Sulfate	56	15
Alprazolam	Alprazolam	52	13
Spironolactone	Spironolactone	51	13
Duloxetine Hcl	Duloxetine Hcl	50	14
Tramadol Hcl	Tramadol Hcl	47	11
Simvastatin	Simvastatin	46	14
Finasteride	Finasteride	44	12
Furosemide	Furosemide	44	suppressed
Pantoprazole Sodium	Pantoprazole Sodium	44	11
Escitalopram Oxalate	Escitalopram Oxalate	41	suppressed
Metoprolol Tartrate	Metoprolol Tartrate	41	suppressed
Hydrochlorothiazide	Hydrochlorothiazide	40	12
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	40	suppressed
Xarelto	Rivaroxaban	40	suppressed
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	38	suppressed
Tamsulosin Hcl	Tamsulosin Hcl	36	suppressed
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	35	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	33	suppressed
Glipizide	Glipizide	32	suppressed
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	32	suppressed
Trazodone Hcl	Trazodone Hcl	32	suppressed
Atenolol	Atenolol	30	suppressed
Fluticasone Propionate	Fluticasone Propionate	30	14
Pregabalin	Pregabalin	30	suppressed
Shingrix	Varicella-Zoster Ge/As01b/Pf	29	22
Rosuvastatin Calcium	Rosuvastatin Calcium	28	suppressed
Verapamil Er	Verapamil Hcl	28	suppressed
Jardiance	Empagliflozin	27	suppressed
Naproxen	Naproxen	27	suppressed
Gabapentin	Gabapentin	26	suppressed
Oxycodone Hcl	Oxycodone Hcl	26	suppressed
Alendronate Sodium	Alendronate Sodium	25	suppressed
Sotalol	Sotalol Hcl	25	suppressed
Liothyronine Sodium	Liothyronine Sodium	23	suppressed
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	23	suppressed
Prednisone	Prednisone	23	16
Venlafaxine Hcl Er	Venlafaxine Hcl	23	suppressed
Propranolol Hcl Er	Propranolol Hcl	22	suppressed
Bupropion Xl	Bupropion Hcl	21	suppressed
Enalapril Maleate	Enalapril Maleate	21	suppressed
Glipizide Er	Glipizide	21	suppressed
Meclizine Hcl	Meclizine Hcl	20	suppressed
Propranolol Hcl	Propranolol Hcl	20	suppressed
Ropinirole Hcl	Ropinirole Hcl	20	suppressed
Invokana	Canagliflozin	19	suppressed
Fluoxetine Hcl	Fluoxetine Hcl	18	suppressed
Boostrix Tdap	Diphth,pertuss(Acell),tet Vac	17	17
Glimepiride	Glimepiride	17	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	17	suppressed
Tolterodine Tartrate Er	Tolterodine Tartrate	17	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	15	suppressed
Lorazepam	Lorazepam	14	suppressed
Myrbetriq	Mirabegron	14	suppressed
Prochlorperazine Maleate	Prochlorperazine Maleate	14	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	14	suppressed
Valsartan	Valsartan	14	suppressed
Colchicine	Colchicine	13	suppressed
Meloxicam	Meloxicam	13	suppressed
Tizanidine Hcl	Tizanidine Hcl	13	suppressed
Citalopram Hbr	Citalopram Hydrobromide	12	suppressed
Clonazepam	Clonazepam	12	suppressed
Dexlansoprazole Dr	Dexlansoprazole	12	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	12	suppressed
Temazepam	Temazepam	12	suppressed
Carbidopa-Levodopa	Carbidopa/Levodopa	11	suppressed
Cefdinir	Cefdinir	11	suppressed
Dexilant	Dexlansoprazole	11	suppressed
Montelukast Sodium	Montelukast Sodium	11	suppressed
Potassium Chloride	Potassium Chloride	11	suppressed
Testosterone	Testosterone	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