Healthcare provider profile · identity verified

Mark Christopher Anderson, MD

Family Practice · MONONA, WI · NPI 1952537375

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	398	99
Omeprazole	Omeprazole	244	62
Lisinopril	Lisinopril	217	60
Amlodipine Besylate	Amlodipine Besylate	204	60
Losartan Potassium	Losartan Potassium	195	50
Tamsulosin Hcl	Tamsulosin Hcl	187	46
Simvastatin	Simvastatin	123	32
Furosemide	Furosemide	122	24
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	120	19
Metoprolol Succinate	Metoprolol Succinate	108	30
Oxycodone Hcl	Oxycodone Hcl	107	18
Gabapentin	Gabapentin	106	36
Metformin Hcl	Metformin Hcl	102	32
Eliquis	Apixaban	98	23
Metformin Hcl Er	Metformin Hcl	87	30
Warfarin Sodium	Warfarin Sodium	86	19
Hydrochlorothiazide	Hydrochlorothiazide	84	30
Levothyroxine Sodium	Levothyroxine Sodium	83	27
Trazodone Hcl	Trazodone Hcl	83	23
Clonazepam	Clonazepam	79	14
Rosuvastatin Calcium	Rosuvastatin Calcium	79	23
Fluticasone Propionate	Fluticasone Propionate	74	30
Duloxetine Hcl	Duloxetine Hcl	73	18
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	71	24
Metoprolol Tartrate	Metoprolol Tartrate	71	16
Carvedilol	Carvedilol	67	18
Sertraline Hcl	Sertraline Hcl	66	19
Albuterol Sulfate Hfa	Albuterol Sulfate	58	19
Lamotrigine	Lamotrigine	57	suppressed
Baclofen	Baclofen	56	suppressed
Pantoprazole Sodium	Pantoprazole Sodium	54	suppressed
Diazepam	Diazepam	53	14
Methylphenidate Hcl	Methylphenidate Hcl	51	suppressed
Finasteride	Finasteride	50	12
Trulicity	Dulaglutide	49	suppressed
Allopurinol	Allopurinol	48	12
Lovastatin	Lovastatin	47	11
Amitriptyline Hcl	Amitriptyline Hcl	44	11
Famotidine	Famotidine	44	15
Enalapril Maleate	Enalapril Maleate	42	suppressed
Fluoxetine Hcl	Fluoxetine Hcl	42	11
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	41	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	40	12
Diclofenac Sodium	Diclofenac Sodium	39	20
Jardiance	Empagliflozin	39	suppressed
Alprazolam	Alprazolam	38	suppressed
Zolpidem Tartrate	Zolpidem Tartrate	38	suppressed
Januvia	Sitagliptin Phosphate	36	suppressed
Atenolol	Atenolol	32	11
Citalopram Hbr	Citalopram Hydrobromide	32	suppressed
Pregabalin	Pregabalin	31	suppressed
Aripiprazole	Aripiprazole	30	suppressed
Farxiga	Dapagliflozin Propanediol	29	suppressed
Montelukast Sodium	Montelukast Sodium	29	suppressed
Testosterone Cypionate	Testosterone Cypionate	29	suppressed
Ventolin Hfa	Albuterol Sulfate	29	suppressed
Mirtazapine	Mirtazapine	28	suppressed
Paroxetine Hcl	Paroxetine Hcl	28	suppressed
Prednisone	Prednisone	26	suppressed
Spironolactone	Spironolactone	26	suppressed
Bupropion Xl	Bupropion Hcl	25	11
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	25	suppressed
Tizanidine Hcl	Tizanidine Hcl	24	suppressed
Benazepril Hcl	Benazepril Hcl	23	suppressed
Clopidogrel	Clopidogrel Bisulfate	23	suppressed
Dextroamphetamine-Amphet Er	Dextroamphetamine/Amphetamine	23	suppressed
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	23	suppressed
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	22	suppressed
Glipizide Er	Glipizide	22	suppressed
Ozempic	Semaglutide	22	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	22	suppressed
Cephalexin	Cephalexin	21	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	21	suppressed
Nano 2nd Gen Pen Needle	Pen Needle, Diabetic	21	suppressed
Oxycontin	Oxycodone Hcl	21	suppressed
Temazepam	Temazepam	21	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	20	17
Ezetimibe	Ezetimibe	20	suppressed
Fenofibrate	Fenofibrate	20	suppressed
Morphine Sulfate Er	Morphine Sulfate	20	suppressed
Acetaminophen-Codeine	Acetaminophen With Codeine	19	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	19	suppressed
Dextroamphetamine-Amphetamine	Dextroamphetamine/Amphetamine	18	suppressed
Glimepiride	Glimepiride	18	suppressed
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	18	suppressed
Alendronate Sodium	Alendronate Sodium	17	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	17	suppressed
Mounjaro	Tirzepatide	17	suppressed
Nifedipine Er	Nifedipine	17	suppressed
Wixela Inhub	Fluticasone Propion/Salmeterol	17	suppressed
Buspirone Hcl	Buspirone Hcl	16	suppressed
Escitalopram Oxalate	Escitalopram Oxalate	16	suppressed
Fenofibrate	Fenofibrate,micronized	16	suppressed
Humalog Mix 75-25 Kwikpen	Insulin Lispro Protamin/Lispro	16	suppressed
Lidocaine	Lidocaine	16	suppressed
Memantine Hcl	Memantine Hcl	16	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	16	suppressed
Celecoxib	Celecoxib	15	suppressed
Chlorthalidone	Chlorthalidone	15	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	15	suppressed
Ketoconazole	Ketoconazole	15	suppressed
Lactulose	Lactulose	15	suppressed
Lorazepam	Lorazepam	15	suppressed
Ropinirole Hcl	Ropinirole Hcl	15	suppressed
Tresiba Flextouch U-100	Insulin Degludec	15	suppressed
Valacyclovir	Valacyclovir Hcl	15	suppressed
Arnuity Ellipta	Fluticasone Furoate	14	suppressed
Meloxicam	Meloxicam	14	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	14	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	14	suppressed
Venlafaxine Hcl Er	Venlafaxine Hcl	14	suppressed
Carbidopa-Levodopa	Carbidopa/Levodopa	13	suppressed
Carbidopa-Levodopa Er	Carbidopa/Levodopa	13	suppressed
Fentanyl	Fentanyl	13	suppressed
Methocarbamol	Methocarbamol	13	suppressed
Amoxicillin	Amoxicillin	12	11
Carbamazepine	Carbamazepine	12	suppressed
Insulin Glargine-Yfgn	Insulin Glargine-Yfgn	12	suppressed
Novolog Flexpen	Insulin Aspart	12	suppressed
Nyamyc	Nystatin	12	suppressed
Ondansetron Odt	Ondansetron	12	suppressed
Potassium Chloride	Potassium Chloride	12	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	12	suppressed
Donepezil Hcl	Donepezil Hcl	11	suppressed
Mitigare	Colchicine	11	suppressed
Spiriva Handihaler	Tiotropium Bromide	11	suppressed
Spiriva Respimat	Tiotropium Bromide	11	suppressed
Sucralfate	Sucralfate	11	suppressed
Terazosin Hcl	Terazosin Hcl	11	suppressed
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	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