Healthcare provider profile · identity verified

John Daerin Ro, M.D.

Family Practice · TORRANCE, CA · NPI 1780620021

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	683	208
Amlodipine Besylate	Amlodipine Besylate	356	118
Rosuvastatin Calcium	Rosuvastatin Calcium	327	112
Losartan Potassium	Losartan Potassium	311	100
Lisinopril	Lisinopril	279	90
Levothyroxine Sodium	Levothyroxine Sodium	217	76
Tamsulosin Hcl	Tamsulosin Hcl	204	75
Metoprolol Succinate	Metoprolol Succinate	183	56
Omeprazole	Omeprazole	183	73
Albuterol Sulfate Hfa	Albuterol Sulfate	151	64
Trazodone Hcl	Trazodone Hcl	146	47
Metformin Hcl	Metformin Hcl	136	45
Baclofen	Baclofen	125	54
Pioglitazone Hcl	Pioglitazone Hcl	116	43
Meloxicam	Meloxicam	106	48
Metformin Hcl Er	Metformin Hcl	104	35
Allopurinol	Allopurinol	103	31
Tramadol Hcl	Tramadol Hcl	102	38
Alendronate Sodium	Alendronate Sodium	101	35
Furosemide	Furosemide	101	38
Hydrochlorothiazide	Hydrochlorothiazide	95	28
Atenolol	Atenolol	93	26
Prednisone	Prednisone	93	54
Gabapentin	Gabapentin	92	41
Pravastatin Sodium	Pravastatin Sodium	92	31
Metoprolol Tartrate	Metoprolol Tartrate	89	30
Famotidine	Famotidine	88	29
Jardiance	Empagliflozin	84	21
Carvedilol	Carvedilol	72	23
Azithromycin	Azithromycin	66	46
Finasteride	Finasteride	66	23
Montelukast Sodium	Montelukast Sodium	66	17
Ropinirole Hcl	Ropinirole Hcl	65	16
Hydralazine Hcl	Hydralazine Hcl	64	22
Glimepiride	Glimepiride	63	23
Escitalopram Oxalate	Escitalopram Oxalate	62	16
Pantoprazole Sodium	Pantoprazole Sodium	62	22
Benazepril Hcl	Benazepril Hcl	58	18
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	58	24
Clotrimazole-Betamethasone	Clotrimazole/Betamethasone Dip	57	29
Clopidogrel	Clopidogrel Bisulfate	56	19
Eliquis	Apixaban	54	18
Simvastatin	Simvastatin	51	17
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	50	17
Meclizine Hcl	Meclizine Hcl	49	24
Sertraline Hcl	Sertraline Hcl	49	19
Triamcinolone Acetonide	Triamcinolone Acetonide	48	26
Fluticasone Propionate	Fluticasone Propionate	43	14
Potassium Chloride	Potassium Chloride	42	13
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	40	32
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	39	14
Duloxetine Hcl	Duloxetine Hcl	38	13
Alprazolam	Alprazolam	37	17
Lorazepam	Lorazepam	37	suppressed
Pregabalin	Pregabalin	36	16
Sildenafil Citrate	Sildenafil Citrate	35	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	32	suppressed
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	31	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	31	30
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	30	suppressed
Ibuprofen	Ibuprofen	29	suppressed
Wixela Inhub	Fluticasone Propion/Salmeterol	29	suppressed
Naproxen	Naproxen	28	16
Clonidine Hcl	Clonidine Hcl	27	suppressed
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	27	suppressed
Farxiga	Dapagliflozin Propanediol	26	11
Doxycycline Hyclate	Doxycycline Hyclate	24	22
Mirtazapine	Mirtazapine	24	15
Zolpidem Tartrate	Zolpidem Tartrate	22	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	21	suppressed
Nifedipine Er	Nifedipine	21	suppressed
Ondansetron Odt	Ondansetron	21	suppressed
Valacyclovir	Valacyclovir Hcl	21	suppressed
Synthroid	Levothyroxine Sodium	20	suppressed
Terazosin Hcl	Terazosin Hcl	20	suppressed
Ezetimibe	Ezetimibe	19	suppressed
Mounjaro	Tirzepatide	19	suppressed
Ozempic	Semaglutide	19	suppressed
Felodipine Er	Felodipine	18	suppressed
Colchicine	Colchicine	17	suppressed
Donepezil Hcl	Donepezil Hcl	17	suppressed
Xarelto	Rivaroxaban	17	suppressed
Chlorthalidone	Chlorthalidone	16	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	16	suppressed
Levetiracetam	Levetiracetam	16	suppressed
Myrbetriq	Mirabegron	16	suppressed
Spironolactone	Spironolactone	16	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	15	suppressed
Clobetasol Propionate	Clobetasol Propionate	15	suppressed
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	15	suppressed
Pioglitazone-Metformin	Pioglitazone Hcl/Metformin Hcl	15	suppressed
Acetaminophen-Codeine	Acetaminophen With Codeine	14	suppressed
Benazepril-Hydrochlorothiazide	Benazepril/Hydrochlorothiazide	14	suppressed
Bydureon Bcise	Exenatide Microspheres	14	suppressed
Diclofenac Sodium	Diclofenac Sodium	14	suppressed
Fluoxetine Hcl	Fluoxetine Hcl	14	suppressed
Olmesartan Medoxomil	Olmesartan Medoxomil	14	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	14	suppressed
Acyclovir	Acyclovir	13	suppressed
Dropsafe Prep Pads	Alcohol Antiseptic Pads	13	suppressed
Lovastatin	Lovastatin	13	suppressed
Nitroglycerin	Nitroglycerin	13	suppressed
Venlafaxine Hcl Er	Venlafaxine Hcl	13	suppressed
Ciprofloxacin Hcl	Ciprofloxacin Hcl	12	11
Estradiol	Estradiol	12	suppressed
Valsartan	Valsartan	12	suppressed
Biktarvy	Bictegrav/Emtricit/Tenofov Ala	11	suppressed
Irbesartan	Irbesartan	11	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	11	suppressed
Latanoprost	Latanoprost	11	suppressed
Nabumetone	Nabumetone	11	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	11	suppressed
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	11	suppressed
Paroxetine Hcl	Paroxetine Hcl	11	suppressed
Propranolol Hcl Er	Propranolol 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

Full methodology · Questions & answers · Report a possible error