Healthcare provider profile · identity verified

Barbara Kay Schaffhauser, MD

Family Practice · BATTLE CREEK, MI · NPI 1669909776

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	399	102
Lisinopril	Lisinopril	249	69
Omeprazole	Omeprazole	211	43
Amlodipine Besylate	Amlodipine Besylate	191	51
Levothyroxine Sodium	Levothyroxine Sodium	158	37
Gabapentin	Gabapentin	144	21
Metformin Hcl	Metformin Hcl	134	36
Losartan Potassium	Losartan Potassium	123	20
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	103	19
Furosemide	Furosemide	99	27
Pregabalin	Pregabalin	99	18
Duloxetine Hcl	Duloxetine Hcl	96	14
Potassium Chloride	Potassium Chloride	93	28
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	90	23
Albuterol Sulfate Hfa	Albuterol Sulfate	89	36
Hydrochlorothiazide	Hydrochlorothiazide	83	21
Metoprolol Succinate	Metoprolol Succinate	83	26
Sertraline Hcl	Sertraline Hcl	82	17
Famotidine	Famotidine	80	20
Ibuprofen	Ibuprofen	73	19
Meloxicam	Meloxicam	72	14
Fluoxetine Hcl	Fluoxetine Hcl	67	11
Carvedilol	Carvedilol	65	11
Topiramate	Topiramate	65	suppressed
Pantoprazole Sodium	Pantoprazole Sodium	63	24
Ventolin Hfa	Albuterol Sulfate	62	18
Jardiance	Empagliflozin	60	13
Metoprolol Tartrate	Metoprolol Tartrate	60	18
Fluticasone Propionate	Fluticasone Propionate	58	23
Quetiapine Fumarate	Quetiapine Fumarate	56	suppressed
Trazodone Hcl	Trazodone Hcl	56	11
Trulicity	Dulaglutide	55	suppressed
Tamsulosin Hcl	Tamsulosin Hcl	48	11
Clopidogrel	Clopidogrel Bisulfate	44	14
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	42	suppressed
Prednisone	Prednisone	41	19
Alprazolam	Alprazolam	40	13
Ezetimibe	Ezetimibe	40	suppressed
Metformin Hcl Er	Metformin Hcl	40	suppressed
Glipizide	Glipizide	36	suppressed
Januvia	Sitagliptin Phosphate	36	suppressed
Tizanidine Hcl	Tizanidine Hcl	36	11
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	36	suppressed
Methadone Hcl	Methadone Hcl	35	suppressed
Simvastatin	Simvastatin	35	suppressed
Buspirone Hcl	Buspirone Hcl	33	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	33	suppressed
Propranolol Hcl Er	Propranolol Hcl	33	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	33	suppressed
Rosuvastatin Calcium	Rosuvastatin Calcium	32	suppressed
Symbicort	Budesonide/Formoterol Fumarate	32	suppressed
Venlafaxine Hcl Er	Venlafaxine Hcl	30	suppressed
Eliquis	Apixaban	29	suppressed
Ropinirole Hcl	Ropinirole Hcl	29	suppressed
Clonidine Hcl	Clonidine Hcl	28	suppressed
Cephalexin	Cephalexin	27	suppressed
Escitalopram Oxalate	Escitalopram Oxalate	26	11
Montelukast Sodium	Montelukast Sodium	26	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	25	suppressed
Bupropion Xl	Bupropion Hcl	25	suppressed
Diclofenac Sodium	Diclofenac Sodium	25	suppressed
Incruse Ellipta	Umeclidinium Bromide	25	suppressed
Valacyclovir	Valacyclovir Hcl	25	suppressed
Zolpidem Tartrate	Zolpidem Tartrate	25	suppressed
Baclofen	Baclofen	24	suppressed
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	24	suppressed
Tramadol Hcl	Tramadol Hcl	24	suppressed
Hydralazine Hcl	Hydralazine Hcl	23	suppressed
Buprenorphine-Naloxone	Buprenorphine Hcl/Naloxone Hcl	22	suppressed
Enalapril Maleate	Enalapril Maleate	22	suppressed
Meclizine Hcl	Meclizine Hcl	22	suppressed
Breo Ellipta	Fluticasone/Vilanterol	21	suppressed
Combivent Respimat	Ipratropium/Albuterol Sulfate	21	suppressed
Levocetirizine Dihydrochloride	Levocetirizine Dihydrochloride	21	suppressed
Acyclovir	Acyclovir	20	suppressed
Advair Hfa	Fluticasone Propion/Salmeterol	19	suppressed
Lovastatin	Lovastatin	19	suppressed
Olanzapine	Olanzapine	19	suppressed
Propranolol Hcl	Propranolol Hcl	19	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	19	11
Xarelto	Rivaroxaban	19	suppressed
Ozempic	Semaglutide	18	suppressed
Alendronate Sodium	Alendronate Sodium	17	suppressed
Atrovent Hfa	Ipratropium Bromide	17	suppressed
Methotrexate	Methotrexate Sodium	17	suppressed
Pravastatin Sodium	Pravastatin Sodium	17	suppressed
Spironolactone	Spironolactone	17	suppressed
Varenicline Tartrate	Varenicline Tartrate	17	suppressed
Acetaminophen-Codeine	Acetaminophen With Codeine	16	suppressed
Advair Diskus	Fluticasone Propion/Salmeterol	14	suppressed
Clonazepam	Clonazepam	14	suppressed
Farxiga	Dapagliflozin Propanediol	14	suppressed
Finasteride	Finasteride	14	suppressed
Hydroxychloroquine Sulfate	Hydroxychloroquine Sulfate	14	suppressed
Ondansetron Odt	Ondansetron	14	suppressed
Rybelsus	Semaglutide	14	suppressed
Alcohol Prep Pads	Alcohol Antiseptic Pads	13	suppressed
Carbamazepine Er	Carbamazepine	13	suppressed
Dicyclomine Hcl	Dicyclomine Hcl	13	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	13	suppressed
Myrbetriq	Mirabegron	13	suppressed
Nifedipine Er	Nifedipine	13	suppressed
Single Use Swab	Alcohol Antiseptic Pads	13	suppressed
Amoxicillin	Amoxicillin	12	12
Chlorthalidone	Chlorthalidone	12	suppressed
Dexlansoprazole Dr	Dexlansoprazole	12	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	12	suppressed
Humalog Kwikpen U-100	Insulin Lispro	12	suppressed
Hydroxyzine Pamoate	Hydroxyzine Pamoate	12	suppressed
Loperamide	Loperamide Hcl	12	suppressed
Midodrine Hcl	Midodrine Hcl	12	suppressed
Mirtazapine	Mirtazapine	12	suppressed
Phenytoin Sodium Extended	Phenytoin Sodium Extended	12	suppressed
Shingrix	Varicella-Zoster Ge/As01b/Pf	12	suppressed
Divalproex Sodium Er	Divalproex Sodium	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