Healthcare provider profile · identity verified

Gregory Rubin, M.D.

Internal Medicine · PORTLAND, OR · NPI 1326269721

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	834	246
Lisinopril	Lisinopril	688	208
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	502	112
Oxycodone Hcl	Oxycodone Hcl	488	100
Amlodipine Besylate	Amlodipine Besylate	438	136
Levothyroxine Sodium	Levothyroxine Sodium	401	109
Losartan Potassium	Losartan Potassium	363	113
Simvastatin	Simvastatin	310	89
Albuterol Sulfate Hfa	Albuterol Sulfate	307	119
Trazodone Hcl	Trazodone Hcl	299	92
Metoprolol Tartrate	Metoprolol Tartrate	288	92
Pradaxa	Dabigatran Etexilate Mesylate	241	69
Metformin Hcl	Metformin Hcl	234	72
Tamsulosin Hcl	Tamsulosin Hcl	216	74
Gabapentin	Gabapentin	215	61
Potassium Chloride	Potassium Chloride	205	70
Glipizide	Glipizide	198	62
Omeprazole	Omeprazole	198	61
Furosemide	Furosemide	190	72
Pantoprazole Sodium	Pantoprazole Sodium	162	63
Pravastatin Sodium	Pravastatin Sodium	161	47
Atenolol	Atenolol	160	54
Sertraline Hcl	Sertraline Hcl	143	45
Prednisone	Prednisone	137	75
Allopurinol	Allopurinol	134	38
Hydrochlorothiazide	Hydrochlorothiazide	132	43
Warfarin Sodium	Warfarin Sodium	120	38
Fluticasone Propionate	Fluticasone Propionate	117	36
Fluoxetine Hcl	Fluoxetine Hcl	116	36
Wixela Inhub	Fluticasone Propion/Salmeterol	115	41
Meloxicam	Meloxicam	111	44
Metformin Hcl Er	Metformin Hcl	109	40
Donepezil Hcl	Donepezil Hcl	106	33
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	106	35
Humulin N	Insulin Nph Human Isophane	102	33
Rosuvastatin Calcium	Rosuvastatin Calcium	99	33
Citalopram Hbr	Citalopram Hydrobromide	97	31
Triamcinolone Acetonide	Triamcinolone Acetonide	96	46
Jardiance	Empagliflozin	92	30
Spiriva Respimat	Tiotropium Bromide	89	30
Lorazepam	Lorazepam	88	28
Clopidogrel	Clopidogrel Bisulfate	87	22
Metoprolol Succinate	Metoprolol Succinate	85	28
Carvedilol	Carvedilol	83	30
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	82	30
Alendronate Sodium	Alendronate Sodium	81	37
Spironolactone	Spironolactone	80	27
Alvesco	Ciclesonide	77	28
Veo Insulin Syringe	Syringe-Needle,insulin,0.5 Ml	75	21
Ozempic	Semaglutide	72	12
Tramadol Hcl	Tramadol Hcl	72	20
Nifedipine Er	Nifedipine	71	23
Nitroglycerin	Nitroglycerin	68	37
Doxycycline Monohydrate	Doxycycline Monohydrate	65	31
Duloxetine Hcl	Duloxetine Hcl	65	16
Alprazolam	Alprazolam	64	17
Famotidine	Famotidine	64	23
Veo Insulin Syringe	Syringe And Needle,insulin,1ml	64	15
Nystatin	Nystatin	62	25
Shingrix	Varicella-Zoster Ge/As01b/Pf	62	54
Finasteride	Finasteride	61	18
Ibuprofen	Ibuprofen	61	21
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	60	19
Ondansetron Odt	Ondansetron	59	27
Torsemide	Torsemide	59	21
Mirtazapine	Mirtazapine	56	18
Valacyclovir	Valacyclovir Hcl	56	13
Methocarbamol	Methocarbamol	54	14
Propranolol Hcl	Propranolol Hcl	54	18
Ropinirole Hcl	Ropinirole Hcl	53	15
Quetiapine Fumarate	Quetiapine Fumarate	52	12
Zolpidem Tartrate	Zolpidem Tartrate	51	suppressed
Bupropion Xl	Bupropion Hcl	50	22
Pregabalin	Pregabalin	48	17
Insulin Glargine-Yfgn	Insulin Glargine-Yfgn	47	16
Tizanidine Hcl	Tizanidine Hcl	47	suppressed
Estradiol	Estradiol	45	18
Morphine Sulfate	Morphine Sulfate	45	14
Trospium Chloride	Trospium Chloride	42	11
Humulin R	Insulin Regular, Human	39	12
Humulin 70-30	Insulin Nph Hum/Reg Insulin Hm	38	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	38	11
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	37	12
Morphine Sulfate Er	Morphine Sulfate	37	14
Bupropion Hcl Sr	Bupropion Hcl	36	suppressed
Eliquis	Apixaban	36	12
Escitalopram Oxalate	Escitalopram Oxalate	36	18
Lovastatin	Lovastatin	34	11
Buspirone Hcl	Buspirone Hcl	33	11
Acetaminophen-Codeine	Acetaminophen With Codeine	32	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	32	suppressed
Cefadroxil	Cefadroxil	31	19
Terazosin Hcl	Terazosin Hcl	31	suppressed
Fluconazole	Fluconazole	30	15
Digoxin	Digoxin	29	suppressed
Hydrocortisone	Hydrocortisone	29	17
Amitriptyline Hcl	Amitriptyline Hcl	28	suppressed
Humulin N Kwikpen	Insulin Nph Human Isophane	28	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	28	12
Amoxicillin	Amoxicillin	27	suppressed
Clonazepam	Clonazepam	27	12
Fluoridex	Fluoride (Sodium)	27	12
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	27	19
Paroxetine Hcl	Paroxetine Hcl	27	suppressed
Xarelto	Rivaroxaban	27	suppressed
Ketoconazole	Ketoconazole	26	suppressed
Venlafaxine Hcl Er	Venlafaxine Hcl	26	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	23	suppressed
Montelukast Sodium	Montelukast Sodium	23	suppressed
Cholestyramine	Cholestyramine (With Sugar)	22	suppressed
Humalog Kwikpen U-100	Insulin Lispro	22	suppressed
Nortriptyline Hcl	Nortriptyline Hcl	22	suppressed
Promethazine Hcl	Promethazine Hcl	22	suppressed
Dicyclomine Hcl	Dicyclomine Hcl	21	suppressed
Lidocaine	Lidocaine	21	12
Ultra-Fine Short Pen Needle	Pen Needle, Diabetic	21	suppressed
Amantadine	Amantadine Hcl	20	suppressed
Latanoprost	Latanoprost	20	suppressed
Methylphenidate Hcl	Methylphenidate Hcl	20	suppressed
Prochlorperazine Maleate	Prochlorperazine Maleate	20	suppressed
Venlafaxine Hcl	Venlafaxine Hcl	20	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	19	12
Hydromorphone Hcl	Hydromorphone Hcl	19	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	19	suppressed
Acyclovir	Acyclovir	18	suppressed
Lurasidone Hcl	Lurasidone Hcl	18	suppressed
Cephalexin	Cephalexin	17	16
Dabigatran Etexilate	Dabigatran Etexilate Mesylate	17	17
Hydroxyzine Hcl	Hydroxyzine Hcl	17	suppressed
Naloxone Hcl	Naloxone Hcl	17	16
Sure Comfort Pen Needle	Pen Needle, Diabetic	17	suppressed
Diphenoxylate-Atropine	Diphenoxylate Hcl/Atropine	16	suppressed
Naproxen	Naproxen	16	suppressed
Baclofen	Baclofen	15	suppressed
Chlorthalidone	Chlorthalidone	15	suppressed
Clindamycin Phosphate	Clindamycin Phosphate	15	suppressed
Enoxaparin Sodium	Enoxaparin Sodium	15	suppressed
Memantine Hcl	Memantine Hcl	15	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	15	12
Atrovent Hfa	Ipratropium Bromide	14	suppressed
Buprenorphine-Naloxone	Buprenorphine Hcl/Naloxone Hcl	14	suppressed
Lactulose	Lactulose	14	suppressed
Methadone Hcl	Methadone Hcl	14	suppressed
Nitrofurantoin	Nitrofurantoin Macrocrystal	14	suppressed
Tenivac	Tetanus-Diphtheria Toxoids/Pf	14	14
Veo Insulin Syringe	Syring-Needl,disp,insul,0.3 Ml	14	suppressed
Dextroamphetamine-Amphetamine	Dextroamphetamine/Amphetamine	13	suppressed
Diazepam	Diazepam	13	suppressed
Ezetimibe	Ezetimibe	13	suppressed
Ipratropium Bromide	Ipratropium Bromide	13	suppressed
Azithromycin	Azithromycin	12	suppressed
Bisoprolol Fumarate	Bisoprolol Fumarate	12	suppressed
Clindamycin Hcl	Clindamycin Hcl	12	suppressed
Doxepin Hcl	Doxepin Hcl	12	suppressed
Enulose	Lactulose	12	suppressed
Hydralazine Hcl	Hydralazine Hcl	12	suppressed
Linzess	Linaclotide	12	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	12	suppressed
Selenium Sulfide	Selenium Sulfide	12	suppressed
Azelastine Hcl	Azelastine Hcl	11	suppressed
Calcitonin-Salmon	Calcitonin,salmon,synthetic	11	suppressed
Carbamazepine	Carbamazepine	11	suppressed
Cilostazol	Cilostazol	11	suppressed
Epinephrine	Epinephrine	11	suppressed
Fenofibrate	Fenofibrate	11	suppressed
Midodrine Hcl	Midodrine Hcl	11	suppressed
Ultra-Fine Mini Pen Needle	Pen Needle, Diabetic	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