Healthcare provider profile · identity verified

David M Greenberg

Family Practice · DURANGO, CO · NPI 1003896408

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	1885	306
Levothyroxine Sodium	Levothyroxine Sodium	1874	220
Gabapentin	Gabapentin	1762	243
Furosemide	Furosemide	1571	189
Metformin Hcl	Metformin Hcl	1232	175
Lisinopril	Lisinopril	1158	200
Tamsulosin Hcl	Tamsulosin Hcl	1087	147
Eliquis	Apixaban	1083	123
Amlodipine Besylate	Amlodipine Besylate	1081	178
Quetiapine Fumarate	Quetiapine Fumarate	772	106
Pantoprazole Sodium	Pantoprazole Sodium	753	138
Clopidogrel	Clopidogrel Bisulfate	667	84
Trazodone Hcl	Trazodone Hcl	666	115
Potassium Chloride	Potassium Chloride	637	112
Levetiracetam	Levetiracetam	598	77
Losartan Potassium	Losartan Potassium	569	103
Sertraline Hcl	Sertraline Hcl	565	94
Metoprolol Tartrate	Metoprolol Tartrate	564	89
Metoprolol Succinate	Metoprolol Succinate	558	98
Mirtazapine	Mirtazapine	495	91
Baclofen	Baclofen	477	54
Duloxetine Hcl	Duloxetine Hcl	465	66
Donepezil Hcl	Donepezil Hcl	435	70
Carvedilol	Carvedilol	431	91
Famotidine	Famotidine	417	93
Risperidone	Risperidone	401	68
Finasteride	Finasteride	400	59
Spironolactone	Spironolactone	391	60
Divalproex Sodium	Divalproex Sodium	379	53
Escitalopram Oxalate	Escitalopram Oxalate	304	55
Citalopram Hbr	Citalopram Hydrobromide	297	56
Ondansetron Hcl	Ondansetron Hcl	297	131
Omeprazole	Omeprazole	289	64
Carbidopa-Levodopa	Carbidopa/Levodopa	275	45
Fluoxetine Hcl	Fluoxetine Hcl	271	39
Memantine Hcl	Memantine Hcl	260	44
Olanzapine	Olanzapine	255	49
Lactulose	Lactulose	248	63
Glipizide	Glipizide	241	33
Hydroxyzine Hcl	Hydroxyzine Hcl	223	77
Alendronate Sodium	Alendronate Sodium	213	26
Venlafaxine Hcl Er	Venlafaxine Hcl	203	22
Latanoprost	Latanoprost	198	42
Jardiance	Empagliflozin	194	23
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	192	49
Simvastatin	Simvastatin	189	35
Xarelto	Rivaroxaban	187	29
Meloxicam	Meloxicam	186	24
Buspirone Hcl	Buspirone Hcl	182	25
Hydrochlorothiazide	Hydrochlorothiazide	175	30
Cephalexin	Cephalexin	168	95
Hydralazine Hcl	Hydralazine Hcl	160	33
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	159	44
Nystop	Nystatin	156	59
Ropinirole Hcl	Ropinirole Hcl	152	22
Amitriptyline Hcl	Amitriptyline Hcl	147	23
Aripiprazole	Aripiprazole	145	21
Lorazepam	Lorazepam	142	56
Bupropion Hcl Sr	Bupropion Hcl	140	21
Allopurinol	Allopurinol	136	25
Enulose	Lactulose	131	37
Fluticasone Propionate	Fluticasone Propionate	130	39
Prazosin Hcl	Prazosin Hcl	122	14
Bupropion Xl	Bupropion Hcl	120	18
Insulin Glargine-Yfgn	Insulin Glargine-Yfgn	120	49
Januvia	Sitagliptin Phosphate	115	12
Prednisolone Acetate	Prednisolone Acetate	111	26
Ibuprofen	Ibuprofen	107	46
Midodrine Hcl	Midodrine Hcl	107	27
Oseltamivir Phosphate	Oseltamivir Phosphate	107	60
Sucralfate	Sucralfate	106	18
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	100	44
Oxybutynin Chloride Er	Oxybutynin Chloride	100	14
Triamcinolone Acetonide	Triamcinolone Acetonide	99	28
Rosuvastatin Calcium	Rosuvastatin Calcium	97	21
Divalproex Sodium Er	Divalproex Sodium	96	12
Hydrocortisone	Hydrocortisone	96	suppressed
Myrbetriq	Mirabegron	96	13
Tizanidine Hcl	Tizanidine Hcl	91	21
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	89	25
Insulin Lispro Kwikpen U-100	Insulin Lispro	89	35
Metformin Hcl Er	Metformin Hcl	89	16
Prednisone	Prednisone	89	44
Pregabalin	Pregabalin	88	17
Nifedipine Er	Nifedipine	87	12
Oxcarbazepine	Oxcarbazepine	87	12
Pravastatin Sodium	Pravastatin Sodium	87	14
Xifaxan	Rifaximin	87	11
Amiodarone Hcl	Amiodarone Hcl	86	17
Benztropine Mesylate	Benztropine Mesylate	86	11
Lamotrigine	Lamotrigine	86	15
Ciprofloxacin Hcl	Ciprofloxacin Hcl	84	51
Brimonidine Tartrate	Brimonidine Tartrate	81	19
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	79	46
Nystatin	Nystatin	78	56
Propranolol Hcl	Propranolol Hcl	78	16
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	77	49
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	76	suppressed
Paroxetine Hcl	Paroxetine Hcl	76	18
Doxycycline Hyclate	Doxycycline Hyclate	75	42
Haloperidol	Haloperidol	75	19
Lithium Carbonate	Lithium Carbonate	75	suppressed
Phenytoin Sodium Extended	Phenytoin Sodium Extended	71	suppressed
Montelukast Sodium	Montelukast Sodium	70	18
Clonidine Hcl	Clonidine Hcl	67	18
Novolog Flexpen	Insulin Aspart	67	26
Valproic Acid	Valproic Acid	67	suppressed
Admelog Solostar	Insulin Lispro	66	15
Ezetimibe	Ezetimibe	66	suppressed
Methocarbamol	Methocarbamol	65	14
Atenolol	Atenolol	64	suppressed
Ondansetron Odt	Ondansetron	64	37
Isosorbide Mononitrate Er	Isosorbide Mononitrate	63	13
Oxybutynin Chloride	Oxybutynin Chloride	63	18
Albuterol Sulfate Hfa	Albuterol Sulfate	62	42
Amoxicillin	Amoxicillin	61	38
Nitrofurantoin	Nitrofurantoin Macrocrystal	59	suppressed
Diclofenac Sodium	Diclofenac Sodium	58	24
Carbamazepine	Carbamazepine	57	suppressed
Lantus	Insulin Glargine,hum.Rec.Anlog	57	16
Buprenorphine-Naloxone	Buprenorphine Hcl/Naloxone Hcl	56	suppressed
Albuterol Sulfate	Albuterol Sulfate	55	24
Ipratropium-Albuterol	Ipratropium/Albuterol Sulfate	55	33
Lovastatin	Lovastatin	53	suppressed
Naproxen	Naproxen	53	12
Dicyclomine Hcl	Dicyclomine Hcl	50	suppressed
Morphine Sulfate	Morphine Sulfate	49	41
Chlorthalidone	Chlorthalidone	46	suppressed
Timolol Maleate	Timolol Maleate	46	suppressed
Insulin Aspart Flexpen	Insulin Aspart	45	19
Pioglitazone Hcl	Pioglitazone Hcl	45	suppressed
Amantadine	Amantadine Hcl	44	suppressed
Enoxaparin Sodium	Enoxaparin Sodium	43	12
Oxycodone Hcl	Oxycodone Hcl	42	23
Venlafaxine Hcl	Venlafaxine Hcl	42	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	41	suppressed
Phenobarbital	Phenobarbital	41	suppressed
Tresiba Flextouch U-100	Insulin Degludec	41	suppressed
Trulicity	Dulaglutide	41	suppressed
Warfarin Sodium	Warfarin Sodium	41	suppressed
Desmopressin Acetate	Desmopressin Acetate	39	suppressed
Farxiga	Dapagliflozin Propanediol	39	suppressed
Gemfibrozil	Gemfibrozil	39	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	39	suppressed
Torsemide	Torsemide	39	suppressed
Atropine Sulfate	Atropine Sulfate	37	suppressed
Calcitriol	Calcitriol	37	suppressed
Erythromycin	Erythromycin Base	37	12
Valsartan	Valsartan	37	suppressed
Fluconazole	Fluconazole	36	20
Metoclopramide Hcl	Metoclopramide Hcl	36	suppressed
Entresto	Sacubitril/Valsartan	35	suppressed
Haloperidol Lactate	Haloperidol Lactate	35	28
Methimazole	Methimazole	35	suppressed
Ofloxacin	Ofloxacin	35	21
Celecoxib	Celecoxib	34	suppressed
Dorzolamide-Timolol	Dorzolamide Hcl/Timolol Maleat	33	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	33	suppressed
Humalog	Insulin Lispro	33	12
Lacosamide	Lacosamide	33	suppressed
Levofloxacin	Levofloxacin	33	24
Wixela Inhub	Fluticasone Propion/Salmeterol	33	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	32	suppressed
Humalog Kwikpen U-100	Insulin Lispro	32	14
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	32	19
Incruse Ellipta	Umeclidinium Bromide	32	suppressed
Digoxin	Digoxin	31	suppressed
Ozempic	Semaglutide	31	13
Bumetanide	Bumetanide	30	13
Dorzolamide Hcl	Dorzolamide Hcl	30	suppressed
Glipizide Er	Glipizide	30	suppressed
Naltrexone Hcl	Naltrexone Hcl	30	suppressed
Ventolin Hfa	Albuterol Sulfate	30	suppressed
Enalapril Maleate	Enalapril Maleate	29	suppressed
Klayesta	Nystatin	29	18
Gemtesa	Vibegron	28	suppressed
Methenamine Hippurate	Methenamine Hippurate	28	suppressed
Azithromycin	Azithromycin	27	22
Caplyta	Lumateperone Tosylate	27	suppressed
Estradiol	Estradiol	27	suppressed
Novolin R	Insulin Regular, Human	27	suppressed
Rivastigmine	Rivastigmine	27	suppressed
Tradjenta	Linagliptin	27	suppressed
Cefadroxil	Cefadroxil	26	suppressed
Mupirocin	Mupirocin	26	18
Nitroglycerin	Nitroglycerin	26	18
Dexamethasone	Dexamethasone	25	15
Dilt-Xr	Diltiazem Hcl	25	suppressed
Fiasp Flextouch	Insulin Aspart (Niacinamide)	25	12
Flecainide Acetate	Flecainide Acetate	25	suppressed
Spiriva Respimat	Tiotropium Bromide	25	suppressed
Levetiracetam Er	Levetiracetam	24	suppressed
Benazepril Hcl	Benazepril Hcl	23	suppressed
Hydroxychloroquine Sulfate	Hydroxychloroquine Sulfate	23	suppressed
Insulin Lispro	Insulin Lispro	23	12
Methotrexate	Methotrexate Sodium	23	suppressed
Calcium Acetate	Calcium Acetate	22	suppressed
Methadone Hcl	Methadone Hcl	22	suppressed
Oxycontin	Oxycodone Hcl	22	suppressed
Sodium Chloride	0.9 % Sodium Chloride	22	suppressed
Terbinafine Hcl	Terbinafine Hcl	22	suppressed
Valproic Acid	Valproic Acid (As Sodium Salt)	22	suppressed
Clindamycin Hcl	Clindamycin Hcl	21	14
Creon	Lipase/Protease/Amylase	21	suppressed
Esomeprazole Magnesium	Esomeprazole Magnesium	21	suppressed
Metronidazole	Metronidazole	21	14
Tolterodine Tartrate Er	Tolterodine Tartrate	21	suppressed
Topiramate	Topiramate	21	suppressed
Ceftriaxone	Ceftriaxone Sodium	20	14
Glimepiride	Glimepiride	20	suppressed
Hydroxyurea	Hydroxyurea	20	suppressed
Sevelamer Carbonate	Sevelamer Carbonate	20	11
Breyna	Budesonide/Formoterol Fumarate	19	suppressed
Veltassa	Patiromer Calcium Sorbitex	19	suppressed
Fenofibrate	Fenofibrate	18	suppressed
Fentanyl	Fentanyl	18	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	18	suppressed
Tramadol Hcl	Tramadol Hcl	17	11
Novolin 70-30 Flexpen	Insulin Nph Hum/Reg Insulin Hm	16	suppressed
Tobramycin	Tobramycin	16	15
Chlorhexidine Gluconate	Chlorhexidine Gluconate	15	suppressed
Diltiazem Hcl	Diltiazem Hcl	15	suppressed
Humulin R	Insulin Regular, Human	15	suppressed
Ketoconazole	Ketoconazole	15	suppressed
Lorazepam Intensol	Lorazepam	15	suppressed
Rexulti	Brexpiprazole	15	suppressed
Terazosin Hcl	Terazosin Hcl	15	suppressed
Acyclovir	Acyclovir	14	suppressed
Admelog	Insulin Lispro	14	suppressed
Combivent Respimat	Ipratropium/Albuterol Sulfate	14	suppressed
Fludrocortisone Acetate	Fludrocortisone Acetate	14	suppressed
Ivermectin	Ivermectin	14	13
Moxifloxacin	Moxifloxacin Hcl	14	suppressed
Risperdal Consta	Risperidone Microspheres	14	suppressed
Solifenacin Succinate	Solifenacin Succinate	14	suppressed
Symbicort	Budesonide/Formoterol Fumarate	14	suppressed
Disopyramide Phosphate	Disopyramide Phosphate	13	suppressed
Insulin Aspart	Insulin Aspart	13	suppressed
Ketorolac Tromethamine	Ketorolac Tromethamine	13	suppressed
Labetalol Hcl	Labetalol Hcl	13	suppressed
Levocarnitine	Levocarnitine (With Sugar)	13	suppressed
Pindolol	Pindolol	13	suppressed
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	13	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	13	suppressed
Cholestyramine Light	Cholestyramine	12	suppressed
Dapagliflozin	Dapagliflozin Propanediol	12	suppressed
Fluticasone Propionate Hfa	Fluticasone Propionate	12	suppressed
Levemir Flexpen	Insulin Detemir	12	suppressed
Neomycin-Polymyxin-Dexameth	Neomycin/Polymyxin B/Dexametha	12	suppressed
Novolin R Flexpen	Insulin Regular, Human	12	suppressed
Promethazine Hcl	Promethazine Hcl	12	suppressed
Ramipril	Ramipril	12	suppressed
Santyl	Collagenase Clostridium Hist.	12	suppressed
Steglatro	Ertugliflozin Pidolate	12	suppressed
Trifluoperazine Hcl	Trifluoperazine Hcl	12	suppressed
Aristada	Aripiprazole Lauroxil	11	suppressed
Dilantin	Phenytoin Sodium Extended	11	suppressed
Dutasteride	Dutasteride	11	suppressed
Estradiol (Once Weekly)	Estradiol	11	suppressed
Kapspargo Sprinkle	Metoprolol Succinate	11	suppressed
Propranolol Hcl Er	Propranolol Hcl	11	suppressed
Scopolamine	Scopolamine	11	suppressed
Vancomycin Hcl	Vancomycin 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