Healthcare provider profile · identity verified

Michael A Valbuena, MD

Internal Medicine · PORTLAND, OR · NPI 1871536276

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	653	65
Gabapentin	Gabapentin	433	40
Furosemide	Furosemide	400	44
Amlodipine Besylate	Amlodipine Besylate	398	36
Levothyroxine Sodium	Levothyroxine Sodium	318	32
Memantine Hcl	Memantine Hcl	318	31
Lisinopril	Lisinopril	294	35
Omeprazole	Omeprazole	284	30
Losartan Potassium	Losartan Potassium	265	26
Eliquis	Apixaban	208	20
Duloxetine Hcl	Duloxetine Hcl	198	19
Trazodone Hcl	Trazodone Hcl	197	20
Metoprolol Succinate	Metoprolol Succinate	193	23
Tamsulosin Hcl	Tamsulosin Hcl	183	19
Pantoprazole Sodium	Pantoprazole Sodium	180	19
Sertraline Hcl	Sertraline Hcl	179	18
Metoprolol Tartrate	Metoprolol Tartrate	171	20
Oxycodone Hcl	Oxycodone Hcl	157	39
Risperidone	Risperidone	154	17
Donepezil Hcl	Donepezil Hcl	151	14
Metformin Hcl	Metformin Hcl	136	13
Metformin Hcl Er	Metformin Hcl	135	15
Fluoxetine Hcl	Fluoxetine Hcl	132	11
Simvastatin	Simvastatin	126	12
Potassium Chloride	Potassium Chloride	119	15
Citalopram Hbr	Citalopram Hydrobromide	113	13
Carvedilol	Carvedilol	110	11
Buspirone Hcl	Buspirone Hcl	109	12
Famotidine	Famotidine	105	13
Olanzapine	Olanzapine	103	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	101	suppressed
Jardiance	Empagliflozin	99	suppressed
Albuterol Sulfate Hfa	Albuterol Sulfate	98	38
Allopurinol	Allopurinol	95	suppressed
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	94	19
Carbidopa-Levodopa	Carbidopa/Levodopa	92	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	87	suppressed
Bupropion Xl	Bupropion Hcl	85	suppressed
Fluticasone Propionate	Fluticasone Propionate	84	22
Torsemide	Torsemide	80	11
Montelukast Sodium	Montelukast Sodium	79	suppressed
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	78	20
Cephalexin	Cephalexin	75	45
Prednisone	Prednisone	74	15
Finasteride	Finasteride	73	suppressed
Aripiprazole	Aripiprazole	72	suppressed
Autoshield Duo Pen Needle	Pen Needle,dual Safety,diabetc	67	suppressed
Clopidogrel	Clopidogrel Bisulfate	67	suppressed
Pregabalin	Pregabalin	65	suppressed
Budesonide-Formoterol Fumarate	Budesonide/Formoterol Fumarate	59	suppressed
Klor-Con 10	Potassium Chloride	59	suppressed
Hydrochlorothiazide	Hydrochlorothiazide	58	suppressed
Methenamine Hippurate	Methenamine Hippurate	58	suppressed
Lidocaine	Lidocaine	56	16
Shingrix	Varicella-Zoster Ge/As01b/Pf	48	27
Prazosin Hcl	Prazosin Hcl	47	suppressed
Baclofen	Baclofen	46	suppressed
Hydralazine Hcl	Hydralazine Hcl	46	suppressed
Latanoprost	Latanoprost	46	11
Tizanidine Hcl	Tizanidine Hcl	46	suppressed
Abrysvo	Rsv Vacc, Pref A And Pref B/Pf	45	43
Mirtazapine	Mirtazapine	45	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	45	suppressed
Lorazepam	Lorazepam	42	suppressed
Diclofenac Sodium	Diclofenac Sodium	41	25
Escitalopram Oxalate	Escitalopram Oxalate	41	suppressed
Alendronate Sodium	Alendronate Sodium	38	suppressed
Atenolol	Atenolol	38	suppressed
Levetiracetam	Levetiracetam	37	suppressed
Rosuvastatin Calcium	Rosuvastatin Calcium	37	suppressed
Ondansetron Odt	Ondansetron	36	23
Propranolol Hcl	Propranolol Hcl	36	suppressed
Carbamazepine	Carbamazepine	35	suppressed
Venlafaxine Hcl Er	Venlafaxine Hcl	35	suppressed
Clonazepam	Clonazepam	34	suppressed
Ondansetron Hcl	Ondansetron Hcl	34	17
Spironolactone	Spironolactone	34	suppressed
Trulicity	Dulaglutide	33	suppressed
Calcitriol	Calcitriol	32	suppressed
Hydroxychloroquine Sulfate	Hydroxychloroquine Sulfate	32	suppressed
Tramadol Hcl	Tramadol Hcl	31	suppressed
Vitamin B-1	Thiamine Hcl	31	suppressed
Warfarin Sodium	Warfarin Sodium	31	suppressed
Digoxin	Digoxin	30	suppressed
Clozapine	Clozapine	29	suppressed
Doxepin Hcl	Doxepin Hcl	29	suppressed
Spiriva Respimat	Tiotropium Bromide	29	suppressed
Boostrix Tdap	Diphth,pertuss(Acell),tet Vac	28	26
Doxazosin Mesylate	Doxazosin Mesylate	28	suppressed
Lovastatin	Lovastatin	28	suppressed
Risperidone Odt	Risperidone	28	suppressed
Rivastigmine	Rivastigmine	28	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	27	suppressed
Chlorthalidone	Chlorthalidone	26	suppressed
Divalproex Sodium	Divalproex Sodium	26	suppressed
Lantus	Insulin Glargine,hum.Rec.Anlog	26	suppressed
Venlafaxine Hcl	Venlafaxine Hcl	26	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	25	suppressed
Morphine Sulfate Er	Morphine Sulfate	25	suppressed
Paroxetine Hcl	Paroxetine Hcl	25	suppressed
Xarelto	Rivaroxaban	25	suppressed
Lamotrigine	Lamotrigine	24	suppressed
Lithium Carbonate	Lithium Carbonate	24	suppressed
Methotrexate	Methotrexate Sodium	24	suppressed
Morphine Sulfate	Morphine Sulfate	24	18
Oxycontin	Oxycodone Hcl	24	suppressed
Risperidone Er	Risperidone Microspheres	23	suppressed
Anoro Ellipta	Umeclidinium Brm/Vilanterol Tr	22	suppressed
Cholestyramine	Cholestyramine (With Sugar)	22	suppressed
Fluticasone-Vilanterol	Fluticasone/Vilanterol	22	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	22	suppressed
Valsartan	Valsartan	22	suppressed
Ropinirole Hcl	Ropinirole Hcl	21	suppressed
Mycophenolate Mofetil	Mycophenolate Mofetil	20	suppressed
Cosentyx (2 Syringes)	Secukinumab	19	suppressed
Humalog Kwikpen U-100	Insulin Lispro	19	suppressed
Trimethoprim	Trimethoprim	19	suppressed
Haloperidol Lactate	Haloperidol Lactate	18	18
Ketoconazole	Ketoconazole	18	suppressed
Sulfasalazine	Sulfasalazine	18	suppressed
Tolterodine Tartrate Er	Tolterodine Tartrate	18	suppressed
Lacosamide	Lacosamide	17	suppressed
Loperamide	Loperamide Hcl	17	suppressed
Myrbetriq	Mirabegron	17	suppressed
Valproic Acid	Valproic Acid	16	suppressed
Calcium Acetate	Calcium Acetate	15	suppressed
Clonidine Hcl	Clonidine Hcl	15	suppressed
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	15	suppressed
Fluconazole	Fluconazole	15	11
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	15	suppressed
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	15	suppressed
Pravastatin Sodium	Pravastatin Sodium	15	suppressed
Enbrel Sureclick	Etanercept	14	suppressed
Hydrocortisone	Hydrocortisone	14	suppressed
Levemir Flexpen	Insulin Detemir	14	suppressed
Prednisolone Acetate	Prednisolone Acetate	14	suppressed
Unifine Safecontrol Pen Needle	Pen Needle,dual Safety,diabetc	14	suppressed
Victoza 3-Pak	Liraglutide	14	suppressed
Amoxicillin	Amoxicillin	13	suppressed
Atropine Sulfate	Atropine Sulfate	13	suppressed
Bupropion Hcl Sr	Bupropion Hcl	13	suppressed
Dutasteride	Dutasteride	13	suppressed
Etodolac	Etodolac	13	suppressed
Fenofibrate	Fenofibrate	13	suppressed
Haloperidol Decanoate	Haloperidol Decanoate	13	suppressed
Nortriptyline Hcl	Nortriptyline Hcl	13	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	13	suppressed
Verapamil Er	Verapamil Hcl	13	suppressed
Acyclovir	Acyclovir	12	suppressed
Amantadine	Amantadine Hcl	12	suppressed
Amiodarone Hcl	Amiodarone Hcl	12	suppressed
Bisoprolol Fumarate	Bisoprolol Fumarate	12	suppressed
Fluvoxamine Maleate	Fluvoxamine Maleate	12	suppressed
Haloperidol	Haloperidol	12	suppressed
Isosorbide Dinitrate	Isosorbide Dinitrate	12	suppressed
Klor-Con M10	Potassium Chloride	12	suppressed
Liothyronine Sodium	Liothyronine Sodium	12	suppressed
Mupirocin	Mupirocin	12	suppressed
Naltrexone Hcl	Naltrexone Hcl	12	suppressed
Nitroglycerin Patch	Nitroglycerin	12	suppressed
Novolog Flexpen	Insulin Aspart	12	suppressed
Olanzapine Odt	Olanzapine	12	suppressed
Potassium Citrate Er	Potassium Citrate	12	suppressed
Propranolol Hcl Er	Propranolol Hcl	12	suppressed
Repatha Sureclick	Evolocumab	12	suppressed
Rivastigmine	Rivastigmine Tartrate	12	suppressed
Sotalol	Sotalol Hcl	12	suppressed
Tiotropium Bromide	Tiotropium Bromide	12	suppressed
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	12	suppressed
Arexvy	Rsvpref3 Antigen/As01e/Pf	11	11
Cefpodoxime Proxetil	Cefpodoxime Proxetil	11	suppressed
Estradiol	Estradiol	11	suppressed
Humalog	Insulin Lispro	11	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	11	suppressed
Paliperidone Er	Paliperidone	11	suppressed
Rybelsus	Semaglutide	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