Healthcare provider profile · identity verified

Katrina Marie Maher, MD

Family Practice · COLVILLE, WA · NPI 1568874733

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
Levothyroxine Sodium	Levothyroxine Sodium	630	139
Atorvastatin Calcium	Atorvastatin Calcium	571	161
Losartan Potassium	Losartan Potassium	421	126
Amlodipine Besylate	Amlodipine Besylate	367	100
Lisinopril	Lisinopril	366	107
Omeprazole	Omeprazole	357	94
Rosuvastatin Calcium	Rosuvastatin Calcium	314	94
Simvastatin	Simvastatin	300	54
Hydrochlorothiazide	Hydrochlorothiazide	251	75
Metoprolol Succinate	Metoprolol Succinate	227	66
Gabapentin	Gabapentin	223	66
Citalopram Hbr	Citalopram Hydrobromide	168	31
Metformin Hcl	Metformin Hcl	168	48
Meloxicam	Meloxicam	158	47
Metformin Hcl Er	Metformin Hcl	148	41
Trazodone Hcl	Trazodone Hcl	141	40
Pantoprazole Sodium	Pantoprazole Sodium	140	26
Eliquis	Apixaban	136	33
Furosemide	Furosemide	134	27
Tamsulosin Hcl	Tamsulosin Hcl	120	37
Duloxetine Hcl	Duloxetine Hcl	118	33
Sertraline Hcl	Sertraline Hcl	116	34
Metoprolol Tartrate	Metoprolol Tartrate	102	24
Tramadol Hcl	Tramadol Hcl	101	26
Allopurinol	Allopurinol	97	23
Atenolol	Atenolol	97	14
Albuterol Sulfate Hfa	Albuterol Sulfate	91	44
Pravastatin Sodium	Pravastatin Sodium	90	14
Warfarin Sodium	Warfarin Sodium	89	12
Alendronate Sodium	Alendronate Sodium	88	31
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	84	23
Glimepiride	Glimepiride	80	22
Ozempic	Semaglutide	78	15
Buspirone Hcl	Buspirone Hcl	74	19
Chlorthalidone	Chlorthalidone	74	20
Zolpidem Tartrate	Zolpidem Tartrate	74	20
Escitalopram Oxalate	Escitalopram Oxalate	73	24
Fluoxetine Hcl	Fluoxetine Hcl	69	19
Carvedilol	Carvedilol	68	19
Paroxetine Hcl	Paroxetine Hcl	68	suppressed
Montelukast Sodium	Montelukast Sodium	66	18
Spironolactone	Spironolactone	66	19
Pregabalin	Pregabalin	65	suppressed
Enalapril Maleate	Enalapril Maleate	63	15
Potassium Chloride	Potassium Chloride	61	19
Xarelto	Rivaroxaban	59	17
Esomeprazole Magnesium	Esomeprazole Magnesium	53	suppressed
Galantamine Hbr	Galantamine Hbr	52	suppressed
Valsartan	Valsartan	52	suppressed
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	51	14
Venlafaxine Hcl Er	Venlafaxine Hcl	49	13
Lovastatin	Lovastatin	48	14
Finasteride	Finasteride	47	11
Oxycodone Hcl	Oxycodone Hcl	47	suppressed
Propranolol Hcl	Propranolol Hcl	47	12
Bupropion Xl	Bupropion Hcl	46	21
Clopidogrel	Clopidogrel Bisulfate	45	15
Trulicity	Dulaglutide	45	suppressed
Torsemide	Torsemide	44	suppressed
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	43	suppressed
Glipizide	Glipizide	41	14
Hydroxyzine Hcl	Hydroxyzine Hcl	40	suppressed
Synthroid	Levothyroxine Sodium	40	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	40	12
Jardiance	Empagliflozin	38	11
Prednisone	Prednisone	38	24
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	37	11
Fluticasone Propionate	Fluticasone Propionate	37	15
Methocarbamol	Methocarbamol	35	suppressed
Irbesartan	Irbesartan	34	11
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	34	suppressed
Valacyclovir	Valacyclovir Hcl	34	16
Famotidine	Famotidine	33	11
Ventolin Hfa	Albuterol Sulfate	33	13
Hydromorphone Hcl	Hydromorphone Hcl	32	suppressed
Lamotrigine	Lamotrigine	32	suppressed
Levetiracetam	Levetiracetam	31	suppressed
Acetaminophen-Codeine	Acetaminophen With Codeine	30	suppressed
Fenofibrate	Fenofibrate	30	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	29	suppressed
Clonazepam	Clonazepam	28	suppressed
Estradiol	Estradiol	28	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	26	suppressed
Estradiol (Once Weekly)	Estradiol	26	suppressed
Lorazepam	Lorazepam	26	14
Olmesartan Medoxomil	Olmesartan Medoxomil	26	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	26	suppressed
Nano 2nd Gen Pen Needle	Pen Needle, Diabetic	23	suppressed
Rizatriptan	Rizatriptan Benzoate	23	suppressed
Mounjaro	Tirzepatide	22	suppressed
Nystatin	Nystatin	21	11
Meclizine Hcl	Meclizine Hcl	20	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	19	13
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	19	suppressed
Januvia	Sitagliptin Phosphate	19	suppressed
Doxepin Hcl	Doxepin Hcl	18	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	18	suppressed
Ropinirole Hcl	Ropinirole Hcl	18	suppressed
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	17	suppressed
Ibandronate Sodium	Ibandronate Sodium	17	suppressed
Incruse Ellipta	Umeclidinium Bromide	17	suppressed
Metronidazole	Metronidazole	17	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	17	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	17	11
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	16	suppressed
Ondansetron Odt	Ondansetron	16	11
Spiriva Respimat	Tiotropium Bromide	16	suppressed
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	15	suppressed
Ezetimibe	Ezetimibe	15	suppressed
Ondansetron Hcl	Ondansetron Hcl	15	suppressed
Cephalexin	Cephalexin	14	suppressed
Nystop	Nystatin	14	suppressed
Baclofen	Baclofen	13	suppressed
Benazepril Hcl	Benazepril Hcl	13	suppressed
Breo Ellipta	Fluticasone/Vilanterol	13	suppressed
Desmopressin Acetate	Desmopressin Acetate	13	suppressed
Fiasp Flextouch	Insulin Aspart (Niacinamide)	13	suppressed
Fluconazole	Fluconazole	13	suppressed
Ibu	Ibuprofen	13	suppressed
Aripiprazole	Aripiprazole	12	suppressed
Butalbital-Acetaminophen-Caffe	Butalb/Acetaminophen/Caffeine	12	suppressed
Combivent Respimat	Ipratropium/Albuterol Sulfate	12	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	12	suppressed
Fentanyl	Fentanyl	12	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	12	suppressed
Ketoconazole	Ketoconazole	12	suppressed
Propranolol Hcl Er	Propranolol Hcl	12	suppressed
Spiriva Handihaler	Tiotropium Bromide	12	suppressed
Sucralfate	Sucralfate	12	suppressed
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	12	suppressed
Ciprofloxacin Hcl	Ciprofloxacin Hcl	11	suppressed
Diphenoxylate-Atropine	Diphenoxylate Hcl/Atropine	11	suppressed
Doxycycline Hyclate	Doxycycline Hyclate	11	suppressed
Liothyronine Sodium	Liothyronine Sodium	11	suppressed
Mirtazapine	Mirtazapine	11	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	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