Healthcare provider profile · identity verified

Bhrett Allison Lash, MD

Internal Medicine · OAKLAND, CA · NPI 1568489383

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	1401	483
Amlodipine Besylate	Amlodipine Besylate	915	336
Metformin Hcl	Metformin Hcl	501	169
Gabapentin	Gabapentin	489	167
Losartan Potassium	Losartan Potassium	420	147
Lisinopril	Lisinopril	414	157
Albuterol Sulfate Hfa	Albuterol Sulfate	322	107
Famotidine	Famotidine	290	99
Furosemide	Furosemide	250	75
Omeprazole	Omeprazole	248	85
Fluticasone Propionate	Fluticasone Propionate	242	80
Tamsulosin Hcl	Tamsulosin Hcl	240	87
Metoprolol Succinate	Metoprolol Succinate	221	81
Pantoprazole Sodium	Pantoprazole Sodium	212	61
Jardiance	Empagliflozin	206	65
Hydrochlorothiazide	Hydrochlorothiazide	203	85
Levothyroxine Sodium	Levothyroxine Sodium	194	69
Duloxetine Hcl	Duloxetine Hcl	180	48
Ozempic	Semaglutide	163	50
Carvedilol	Carvedilol	162	57
Baclofen	Baclofen	158	53
Metformin Hcl Er	Metformin Hcl	153	59
Trazodone Hcl	Trazodone Hcl	143	51
Spironolactone	Spironolactone	115	40
Finasteride	Finasteride	114	37
Ibuprofen	Ibuprofen	114	46
Trulicity	Dulaglutide	111	28
Pravastatin Sodium	Pravastatin Sodium	108	26
Ventolin Hfa	Albuterol Sulfate	108	43
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	107	33
Diclofenac Sodium	Diclofenac Sodium	106	45
Mirtazapine	Mirtazapine	102	34
Eliquis	Apixaban	97	43
Glipizide	Glipizide	94	33
Lidocaine	Lidocaine	92	39
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	92	36
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	91	46
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	89	44
Alendronate Sodium	Alendronate Sodium	86	32
Allopurinol	Allopurinol	86	26
Xarelto	Rivaroxaban	83	26
Hydralazine Hcl	Hydralazine Hcl	82	22
Nifedipine Er	Nifedipine	75	30
Nano 2nd Gen Pen Needle	Pen Needle, Diabetic	74	41
Enalapril Maleate	Enalapril Maleate	69	29
Clopidogrel	Clopidogrel Bisulfate	68	24
Meloxicam	Meloxicam	67	26
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	66	32
Bumetanide	Bumetanide	62	17
Arnuity Ellipta	Fluticasone Furoate	60	16
Rosuvastatin Calcium	Rosuvastatin Calcium	60	22
Incruse Ellipta	Umeclidinium Bromide	58	19
Tradjenta	Linagliptin	58	16
Naproxen	Naproxen	57	15
Potassium Chloride	Potassium Chloride	57	14
Hydroxyzine Hcl	Hydroxyzine Hcl	55	20
Simvastatin	Simvastatin	55	26
Triamcinolone Acetonide	Triamcinolone Acetonide	54	27
Advair Hfa	Fluticasone Propion/Salmeterol	53	13
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	53	12
Fluoxetine Hcl	Fluoxetine Hcl	52	14
Sertraline Hcl	Sertraline Hcl	52	25
Breo Ellipta	Fluticasone/Vilanterol	51	16
Ultra-Fine Nano Pen Needle	Pen Needle, Diabetic	50	19
Escitalopram Oxalate	Escitalopram Oxalate	46	15
Venlafaxine Hcl Er	Venlafaxine Hcl	43	14
Levetiracetam	Levetiracetam	41	14
Meclizine Hcl	Meclizine Hcl	41	15
Amitriptyline Hcl	Amitriptyline Hcl	40	13
Bupropion Xl	Bupropion Hcl	40	suppressed
Januvia	Sitagliptin Phosphate	37	14
Atrovent Hfa	Ipratropium Bromide	36	suppressed
Rybelsus	Semaglutide	36	11
Hydrocortisone	Hydrocortisone	35	20
Chlorthalidone	Chlorthalidone	34	16
Montelukast Sodium	Montelukast Sodium	33	15
Doxazosin Mesylate	Doxazosin Mesylate	31	suppressed
Techlite Pen Needle	Pen Needle, Diabetic	31	17
Donepezil Hcl	Donepezil Hcl	29	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	28	suppressed
Atenolol	Atenolol	26	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	26	suppressed
Tizanidine Hcl	Tizanidine Hcl	26	suppressed
Dulera	Mometasone/Formoterol	25	suppressed
Nortriptyline Hcl	Nortriptyline Hcl	25	suppressed
Metoprolol Tartrate	Metoprolol Tartrate	24	13
Quetiapine Fumarate	Quetiapine Fumarate	24	suppressed
Spiriva Handihaler	Tiotropium Bromide	24	suppressed
Valsartan	Valsartan	24	11
Aspirin-Dipyridamole Er	Aspirin/Dipyridamole	23	suppressed
Labetalol Hcl	Labetalol Hcl	23	suppressed
Novolog Flexpen	Insulin Aspart	23	11
Sumatriptan Succinate	Sumatriptan Succinate	23	suppressed
Entresto	Sacubitril/Valsartan	22	suppressed
Ezetimibe	Ezetimibe	22	suppressed
Latanoprost	Latanoprost	22	suppressed
Memantine Hcl	Memantine Hcl	22	suppressed
Citalopram Hbr	Citalopram Hydrobromide	21	suppressed
Clindamycin Phosphate	Clindamycin Phosphate	21	suppressed
Nitroglycerin	Nitroglycerin	21	suppressed
Propranolol Hcl	Propranolol Hcl	21	suppressed
Cilostazol	Cilostazol	20	suppressed
Farxiga	Dapagliflozin Propanediol	20	suppressed
Fluticasone Propionate Hfa	Fluticasone Propionate	20	11
Anoro Ellipta	Umeclidinium Brm/Vilanterol Tr	19	suppressed
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	19	suppressed
Humalog Kwikpen U-100	Insulin Lispro	18	suppressed
Insupen Pen Needle	Pen Needle, Diabetic	18	suppressed
Spiriva Respimat	Tiotropium Bromide	18	suppressed
Advair Diskus	Fluticasone Propion/Salmeterol	17	suppressed
Cromolyn Sodium	Cromolyn Sodium	17	suppressed
Doxepin Hcl	Doxepin Hcl	17	suppressed
Fluocinonide	Fluocinonide	17	suppressed
Prednisone	Prednisone	17	suppressed
Tiotropium Bromide	Tiotropium Bromide	17	suppressed
Estradiol	Estradiol	16	suppressed
Bisoprolol Fumarate	Bisoprolol Fumarate	15	suppressed
Buprenorphine	Buprenorphine	15	suppressed
Clotrimazole	Clotrimazole	15	suppressed
Lansoprazole	Lansoprazole	15	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	15	suppressed
Symbicort	Budesonide/Formoterol Fumarate	15	suppressed
Calcipotriene	Calcipotriene	14	suppressed
Comfort Ez Pen Needle	Pen Needle, Diabetic	14	suppressed
Easy Touch Alcohol Prep Pads	Alcohol Antiseptic Pads	14	suppressed
Stiolto Respimat	Tiotropium Br/Olodaterol Hcl	14	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	14	suppressed
Ultra-Fine Mini Pen Needle	Pen Needle, Diabetic	14	suppressed
Hydroxyurea	Hydroxyurea	13	suppressed
Methimazole	Methimazole	13	suppressed
Verapamil Er	Verapamil Hcl	13	suppressed
Bupropion Hcl Sr	Bupropion Hcl	12	suppressed
Celecoxib	Celecoxib	12	suppressed
Venlafaxine Hcl	Venlafaxine Hcl	12	suppressed
Zenpep	Lipase/Protease/Amylase	12	suppressed
Azelastine Hcl	Azelastine Hcl	11	suppressed
Divalproex Sodium Er	Divalproex Sodium	11	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	11	suppressed
Loperamide	Loperamide Hcl	11	suppressed
Lurasidone Hcl	Lurasidone Hcl	11	suppressed
Naloxone Hcl	Naloxone 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

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