Denise Z. Toperzer, NP
Nurse Practitioner · Eau Claire, WI
Denise Z. Toperzer, NP is a nurse practitioner with a practice address in Eau Claire, Wisconsin, and NPI 1598842312, issued on Nov 1, 2006. Check the license (Wisconsin 5214, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Denise Z. Toperzer
- Credential
- NP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License numbers
- 5214 WI
R 1254787 MN
Self-reported in NPPES; status is on the state search - Practice location
- 2116 Craig RD, Eau Claire, WI 54701
- Phone
- (715) 858-4500
- Enumerated
- Nov 1, 2006
- Record last updated
- Jan 24, 2013 (not updated in 13 years: call before relying on the address or phone)
- Medicaid ID
- 872713900 MN
- Medicare enrollment
- Enrolled (PECOS I20130312000013); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 3,995 in Wisconsin → Look up another NPI →
Also registered at 2116 Craig RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Aruna Ahluwalia, MDAnesthesiology Physician1205852506
- Sharat Ahluwalia, MDNeurology Physician1629179221
- Omprakash Ahuja, MDPulmonary Disease Physician1861563058
- Brad Allar, PAPhysician Assistant1598795650
- Brent Amble, A.T.C., L.A.T.Athletic Trainer1235122771
Verify Denise Z. Toperzer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license 5214Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
6.3 times the Medicare Part D claims of the average nurse practitioner in 2024
6,969 Medicare Part D claims for 381 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 276 claims were for opioids.
Most prescribed
- Atorvastatin Calcium394 claims
- Levothyroxine Sodium307 claims
- Omeprazole228 claims
- Lisinopril218 claims
- Pantoprazole Sodium184 claims
- Amlodipine Besylate179 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 MIPS final score for 2023 (Medicare payment program): 78.9 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).
Bills Medicare through one group practice
- Mchs Hospitals IncMarshfield, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Denise Z. Toperzer among 3,995 nurse practitioner records in Wisconsin
Denise Z. Toperzer, NP is one of 3,995 nurse practitioner records with a practice address in Wisconsin. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 3% of them.
- NPI issued2006 · 3% of these records are older, 82% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated1998 · median 2017 among the 2,701 with a school on file
- Record last updated2013 · 41% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
184 nurse practitioner records list a practice address in Eau Claire
They are 184 of the 3,085 NPPES records with a practice address in Eau Claire, and 3,995 nurse practitioner records in Wisconsin.
All 3,995 in Wisconsin → Every provider in Eau Claire → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Julie Barneson, CRNPEau Claire, WI 547011841297132
- Michelle Brost, APNPEau Claire, WI 547011518978519
- Vicky BuhrEau Claire, WI 547011528182797
- Alice Knutson, NPEau Claire, WI 547011750303137
- Angela Oldenberg, NPEau Claire, WI 547011871795096
- Linda Poirier, RN FNPC APNPEau Claire, WI 547011477606242
- Mary Richbourg, NPEau Claire, WI 547011952400483
- Kristen Sandager, RNC APNPEau Claire, WI 547011447347026
Common questions
What is Denise Z. Toperzer, NP's NPI number?
Denise Z. Toperzer, NP's National Provider Identifier (NPI) is 1598842312, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Denise Z. Toperzer, NP located?
The NPPES record lists a practice address at 2116 Craig RD, Eau Claire, WI, 54701. Phone: (715) 858-4500. Providers update this record themselves, so call before visiting.
How can I verify Denise Z. Toperzer, NP's license?
NPPES lists Wisconsin license number 5214, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.
How much does Denise Z. Toperzer, NP prescribe under Medicare Part D?
In 2024, Denise Z. Toperzer, NP had 6,969 Medicare Part D claims for 381 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.
What is Denise Z. Toperzer, NP's MIPS final score?
The 2023 MIPS final score is 78.9 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), file of Aug 9, 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.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.