Healthcare provider profile · identity verified

Twyla D. Ostercamp, D.O.

Family Practice · FOREST CITY, IA · NPI 1376585380

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	254	56
Lisinopril	Lisinopril	254	54
Levothyroxine Sodium	Levothyroxine Sodium	228	46
Eliquis	Apixaban	189	19
Losartan Potassium	Losartan Potassium	172	38
Omeprazole	Omeprazole	136	30
Amlodipine Besylate	Amlodipine Besylate	128	30
Simvastatin	Simvastatin	123	34
Metoprolol Succinate	Metoprolol Succinate	121	25
Hydrochlorothiazide	Hydrochlorothiazide	116	28
Gabapentin	Gabapentin	112	17
Duloxetine Hcl	Duloxetine Hcl	104	16
Trazodone Hcl	Trazodone Hcl	103	27
Tramadol Hcl	Tramadol Hcl	101	20
Pantoprazole Sodium	Pantoprazole Sodium	100	21
Topiramate	Topiramate	100	16
Buspirone Hcl	Buspirone Hcl	92	21
Venlafaxine Hcl Er	Venlafaxine Hcl	92	16
Furosemide	Furosemide	91	24
Montelukast Sodium	Montelukast Sodium	87	21
Potassium Chloride	Potassium Chloride	81	15
Escitalopram Oxalate	Escitalopram Oxalate	80	13
Sertraline Hcl	Sertraline Hcl	72	15
Metformin Hcl	Metformin Hcl	71	16
Warfarin Sodium	Warfarin Sodium	69	11
Pioglitazone Hcl	Pioglitazone Hcl	68	12
Fluoxetine Hcl	Fluoxetine Hcl	63	13
Lamotrigine	Lamotrigine	60	11
Torsemide	Torsemide	60	suppressed
Alendronate Sodium	Alendronate Sodium	55	12
Lovastatin	Lovastatin	54	12
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	50	suppressed
Myrbetriq	Mirabegron	50	suppressed
Mirtazapine	Mirtazapine	47	suppressed
Carvedilol	Carvedilol	46	12
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	46	13
Metoprolol Tartrate	Metoprolol Tartrate	45	suppressed
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	44	20
Metformin Hcl Er	Metformin Hcl	43	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	43	suppressed
Bupropion Xl	Bupropion Hcl	42	suppressed
Lorazepam	Lorazepam	40	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	40	suppressed
Famotidine	Famotidine	37	suppressed
Albuterol Sulfate Hfa	Albuterol Sulfate	36	16
Pregabalin	Pregabalin	35	11
Zolpidem Tartrate	Zolpidem Tartrate	35	suppressed
Aripiprazole	Aripiprazole	33	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	33	suppressed
Tizanidine Hcl	Tizanidine Hcl	33	suppressed
Meloxicam	Meloxicam	32	suppressed
Prednisone	Prednisone	32	15
Sumatriptan Succinate	Sumatriptan Succinate	32	suppressed
Diclofenac Sodium	Diclofenac Sodium	31	suppressed
Esomeprazole Magnesium	Esomeprazole Magnesium	31	suppressed
Solifenacin Succinate	Solifenacin Succinate	30	suppressed
Tamsulosin Hcl	Tamsulosin Hcl	30	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	29	suppressed
Oxycodone Hcl	Oxycodone Hcl	29	suppressed
Primidone	Primidone	29	suppressed
Rosuvastatin Calcium	Rosuvastatin Calcium	29	suppressed
Spironolactone	Spironolactone	29	suppressed
Finasteride	Finasteride	28	suppressed
Ropinirole Hcl	Ropinirole Hcl	28	suppressed
Citalopram Hbr	Citalopram Hydrobromide	27	suppressed
Alprazolam	Alprazolam	26	suppressed
Clonidine Hcl	Clonidine Hcl	25	suppressed
Propranolol Hcl Er	Propranolol Hcl	25	suppressed
Propranolol Hcl	Propranolol Hcl	24	suppressed
Celecoxib	Celecoxib	23	suppressed
Fenofibrate	Fenofibrate	23	suppressed
Latanoprost	Latanoprost	23	suppressed
Pravastatin Sodium	Pravastatin Sodium	23	suppressed
Baclofen	Baclofen	21	suppressed
Fluticasone Propionate	Fluticasone Propionate	21	suppressed
Nitrofurantoin	Nitrofurantoin Macrocrystal	21	suppressed
Farxiga	Dapagliflozin Propanediol	18	suppressed
Carbidopa-Levodopa	Carbidopa/Levodopa	17	suppressed
Clonazepam	Clonazepam	17	suppressed
Clopidogrel	Clopidogrel Bisulfate	17	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	17	suppressed
Novolog Mix 70-30 Flexpen	Insulin Aspart Prot/Insuln Asp	17	suppressed
Cefdinir	Cefdinir	16	15
Estradiol	Estradiol	16	suppressed
Ezetimibe	Ezetimibe	16	suppressed
Nortriptyline Hcl	Nortriptyline Hcl	16	suppressed
Atenolol	Atenolol	15	suppressed
Budesonide	Budesonide	15	suppressed
Glipizide Er	Glipizide	15	suppressed
Januvia	Sitagliptin Phosphate	15	suppressed
Levetiracetam	Levetiracetam	15	suppressed
Nystatin	Nystatin	15	suppressed
Ondansetron Hcl	Ondansetron Hcl	15	suppressed
Arformoterol Tartrate	Arformoterol Tartrate	14	suppressed
Breo Ellipta	Fluticasone/Vilanterol	14	suppressed
Cephalexin	Cephalexin	14	13
Dicyclomine Hcl	Dicyclomine Hcl	14	suppressed
Meclizine Hcl	Meclizine Hcl	14	suppressed
Nabumetone	Nabumetone	14	suppressed
Valacyclovir	Valacyclovir Hcl	14	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	13	suppressed
Ciprofloxacin Hcl	Ciprofloxacin Hcl	13	11
Dextroamphetamine-Amphetamine	Dextroamphetamine/Amphetamine	13	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	13	suppressed
Eszopiclone	Eszopiclone	13	suppressed
Ozempic	Semaglutide	13	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	12	suppressed
Carbidopa-Levodopa Er	Carbidopa/Levodopa	12	suppressed
Dexlansoprazole Dr	Dexlansoprazole	12	suppressed
Fentanyl	Fentanyl	12	suppressed
Haloperidol	Haloperidol	12	suppressed
Incruse Ellipta	Umeclidinium Bromide	12	suppressed
Lithium Carbonate Er	Lithium Carbonate	12	suppressed
Ranolazine Er	Ranolazine	12	suppressed
Terazosin Hcl	Terazosin Hcl	12	suppressed
Ventolin Hfa	Albuterol Sulfate	12	suppressed
Benztropine Mesylate	Benztropine Mesylate	11	suppressed
Clotrimazole	Clotrimazole	11	suppressed
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	11	suppressed
Emgality Pen	Galcanezumab-Gnlm	11	suppressed
Fenofibrate	Fenofibrate,micronized	11	suppressed
Methocarbamol	Methocarbamol	11	suppressed
Mupirocin	Mupirocin	11	suppressed
Risperidone	Risperidone	11	suppressed
Shingrix	Varicella-Zoster Ge/As01b/Pf	11	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	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