Rebecca Deffner, NP
Family Nurse Practitioner · Mosinee, WI
Rebecca Deffner, NP is a family nurse practitioner with a practice address in Mosinee, Wisconsin, and NPI 1578819256, issued on Jul 31, 2012. Check the license (Wisconsin 2012007838, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Rebecca Deffner
- Credential
- NP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 2012007838 WI
Self-reported in NPPES; status is on the state search - Practice location
- 1881 County Trunk XX, Mosinee, WI 54455
- Phone
- (715) 355-4040
- Enumerated
- Jul 31, 2012
- Entity
- Type 1 · individual
Verify Rebecca Deffner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license 2012007838Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
2.7 times the Medicare Part D claims of the average family nurse practitioner in 2024
3,566 Medicare Part D claims for 333 beneficiaries, against an average of 1,302 among the 128,048 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 102 claims were for opioids.
Most prescribed
- Atorvastatin Calcium220 claims
- Amlodipine Besylate160 claims
- Levothyroxine Sodium148 claims
- Omeprazole125 claims
- Lisinopril101 claims
- Rosuvastatin Calcium97 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's Medicare quality score for 2023: 84.6 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
One hospital or facility affiliation
- Aspirus Medical Group, Inc.Kronenwetter, WI
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
2 family nurse practitioner records list a Mosinee practice address
They are 2 of the 75 NPPES records with a Mosinee practice address, and 2,645 family nurse practitioner records in Wisconsin.
All 2 in Mosinee → All 2,645 in Wisconsin → Every provider in Mosinee →
Other family nurse practitioner records in Wisconsin
- Amanda Abaya, APNPAppleton, WI1053145193
- Monaliza Abdela, FNPBrookfield, WI1760288336
- Ayia AbdeljabbarOak Creek, WI1285386094
- Caroline Abel, APNPNeenah, WI1225526205
- Henrietta Abili, APNPGermantown, WI1174859524
- Adetoun Abolurin, FNPOak Creek, WI1316411390
- Anne Abresch, NURSE PRACTITIONERMilwaukee, WI1578867479
- Sumar AbushaqraSheboygan, WI1023488475
- Lindsay AchesonMilwaukee, WI1457940264
- Tyler Adamczak, APNPChippewa Falls, WI1538031588
Common questions
What is Rebecca Deffner, NP's NPI number?
Rebecca Deffner, NP's National Provider Identifier (NPI) is 1578819256, issued on Jul 31, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Rebecca Deffner, NP located?
The NPPES record lists a practice address at 1881 County Trunk XX, Mosinee, WI, 54455. Phone: (715) 355-4040. Providers update this record themselves, so call before visiting.
How can I verify Rebecca Deffner, NP's license?
NPPES lists Wisconsin license number 2012007838, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.
How much does Rebecca Deffner, NP prescribe under Medicare Part D?
In 2024, Rebecca Deffner, NP had 3,566 Medicare Part D claims for 333 beneficiaries; the average among family nurse practitioner prescribers was 1,302. Part D covers Medicare prescriptions only.
What is Rebecca Deffner, NP's Medicare quality score?
The 2023 MIPS final score is 84.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.