Healthcare provider profile · identity verified

Daniel Combitsis, DO

Internal Medicine · LIVERMORE, CA · NPI 1942346549

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	375	127
Levothyroxine Sodium	Levothyroxine Sodium	282	89
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	268	45
Amlodipine Besylate	Amlodipine Besylate	241	97
Rosuvastatin Calcium	Rosuvastatin Calcium	232	77
Lisinopril	Lisinopril	194	74
Furosemide	Furosemide	171	71
Metoprolol Succinate	Metoprolol Succinate	164	54
Losartan Potassium	Losartan Potassium	162	58
Tamsulosin Hcl	Tamsulosin Hcl	159	57
Omeprazole	Omeprazole	153	47
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	140	45
Famotidine	Famotidine	125	43
Gabapentin	Gabapentin	119	46
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	119	16
Fluticasone Propionate	Fluticasone Propionate	117	44
Carvedilol	Carvedilol	115	32
Trazodone Hcl	Trazodone Hcl	110	33
Hydrochlorothiazide	Hydrochlorothiazide	106	42
Alvesco	Ciclesonide	105	44
Atenolol	Atenolol	104	43
Terazosin Hcl	Terazosin Hcl	103	35
Albuterol Sulfate Hfa	Albuterol Sulfate	100	53
Chlorthalidone	Chlorthalidone	100	36
Simvastatin	Simvastatin	89	28
Potassium Chloride	Potassium Chloride	87	31
Metformin Hcl Er	Metformin Hcl	84	30
Pantoprazole Sodium	Pantoprazole Sodium	82	32
Prednisone	Prednisone	82	49
Allopurinol	Allopurinol	79	31
Sertraline Hcl	Sertraline Hcl	79	31
Glipizide	Glipizide	73	21
Doxycycline Monohydrate	Doxycycline Monohydrate	72	49
Metoprolol Tartrate	Metoprolol Tartrate	71	29
Lovastatin	Lovastatin	69	24
Spironolactone	Spironolactone	68	28
Ezetimibe	Ezetimibe	66	20
Wixela Inhub	Fluticasone Propion/Salmeterol	66	24
Jardiance	Empagliflozin	65	25
Ibuprofen	Ibuprofen	64	29
Citalopram Hbr	Citalopram Hydrobromide	62	19
Ozempic	Semaglutide	62	11
Alendronate Sodium	Alendronate Sodium	61	20
Methadone Hcl	Methadone Hcl	61	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	58	32
Cephalexin	Cephalexin	57	43
Mirtazapine	Mirtazapine	56	16
Pradaxa	Dabigatran Etexilate Mesylate	54	18
Finasteride	Finasteride	52	18
Sumatriptan Succinate	Sumatriptan Succinate	51	suppressed
Colchicine	Colchicine	48	21
Tizanidine Hcl	Tizanidine Hcl	48	17
Fluocinonide	Fluocinonide	47	17
Meloxicam	Meloxicam	47	24
Amoxicillin	Amoxicillin	45	27
Morphine Sulfate	Morphine Sulfate	44	suppressed
Azelastine Hcl	Azelastine Hcl	39	15
Metformin Hcl	Metformin Hcl	39	14
Ondansetron Hcl	Ondansetron Hcl	39	11
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	38	28
Lorazepam	Lorazepam	38	17
Fluoxetine Hcl	Fluoxetine Hcl	34	13
Baclofen	Baclofen	33	suppressed
Hydralazine Hcl	Hydralazine Hcl	33	15
Nifedipine Er	Nifedipine	33	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	32	12
Spiriva Respimat	Tiotropium Bromide	32	17
Celecoxib	Celecoxib	31	suppressed
Fentanyl	Fentanyl	31	suppressed
Metronidazole	Metronidazole	30	18
Propranolol Hcl Er	Propranolol Hcl	30	suppressed
Bisoprolol Fumarate	Bisoprolol Fumarate	26	suppressed
Hydrocortisone	Hydrocortisone	26	17
Pravastatin Sodium	Pravastatin Sodium	26	14
Acyclovir	Acyclovir	25	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	24	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	24	suppressed
Zolpidem Tartrate	Zolpidem Tartrate	23	suppressed
Humulin N	Insulin Nph Human Isophane	22	suppressed
Ciprofloxacin Hcl	Ciprofloxacin Hcl	21	17
Fluconazole	Fluconazole	21	suppressed
Morphine Sulfate Er	Morphine Sulfate	20	suppressed
Bumetanide	Bumetanide	19	suppressed
Glipizide Er	Glipizide	19	suppressed
Pregabalin	Pregabalin	19	suppressed
Tramadol Hcl	Tramadol Hcl	19	suppressed
Veo Insulin Syringe	Syringe-Needle,insulin,0.5 Ml	19	suppressed
Ketoconazole	Ketoconazole	18	11
Megestrol Acetate	Megestrol Acetate	18	suppressed
Nitroglycerin	Nitroglycerin	18	15
Pilocarpine Hcl	Pilocarpine Hcl	18	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	18	suppressed
Clonidine Hcl	Clonidine Hcl	17	suppressed
Clopidogrel	Clopidogrel Bisulfate	17	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	17	suppressed
Duloxetine Hcl	Duloxetine Hcl	17	suppressed
Clindamycin Phosphate	Clindamycin Phosphate	16	suppressed
Oxycodone Hcl	Oxycodone Hcl	16	suppressed
Torsemide	Torsemide	16	suppressed
Ultra-Fine Short Pen Needle	Pen Needle, Diabetic	16	suppressed
Acetaminophen-Codeine	Acetaminophen With Codeine	15	suppressed
Clobetasol Propionate	Clobetasol Propionate	15	12
Nortriptyline Hcl	Nortriptyline Hcl	15	suppressed
Pentoxifylline	Pentoxifylline	15	suppressed
Bupropion Hcl Sr	Bupropion Hcl	14	suppressed
Montelukast Sodium	Montelukast Sodium	14	suppressed
Naproxen	Naproxen	14	suppressed
Insulin Glargine-Yfgn	Insulin Glargine-Yfgn	13	suppressed
Trospium Chloride	Trospium Chloride	13	suppressed
Warfarin Sodium	Warfarin Sodium	13	suppressed
Adacel Tdap	Diph,pertuss(Acell),tet Vac/Pf	12	12
Azithromycin	Azithromycin	12	suppressed
Cholestyramine	Cholestyramine (With Sugar)	12	suppressed
Cholestyramine Light	Cholestyramine	12	suppressed
Fludrocortisone Acetate	Fludrocortisone Acetate	12	suppressed
Humalog	Insulin Lispro	12	suppressed
Humulin R	Insulin Regular, Human	12	suppressed
Ipratropium Bromide	Ipratropium Bromide	12	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	12	suppressed
Propranolol Hcl	Propranolol Hcl	12	suppressed
Combivent Respimat	Ipratropium/Albuterol Sulfate	11	suppressed
Levocetirizine Dihydrochloride	Levocetirizine Dihydrochloride	11	suppressed
Metoclopramide Hcl	Metoclopramide Hcl	11	suppressed
Nystatin	Nystatin	11	suppressed
Venlafaxine Hcl Er	Venlafaxine Hcl	11	suppressed
Verapamil Er	Verapamil 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