Marianne H. Mainhardt, NP
Nurse Practitioner · Marinette, WI
Marianne H. Mainhardt, NP is a nurse practitioner with a practice address in Marinette, Wisconsin, and NPI 1932290004, issued on Sep 27, 2006. Check the license (Wisconsin 1565, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Marianne H. Mainhardt
- Credential
- NP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- 1565 WI
Self-reported in NPPES; status is on the state search - Practice location
- 4061 Old Peshtigo RD, Marinette, WI 54143
- Phone
- (715) 732-8000
- Enumerated
- Sep 27, 2006
- Record last updated
- Oct 21, 2024
- Medicaid ID
- 36013400 WI
- Medicare enrollment
- Enrolled (PECOS I20061020000448); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 3,995 in Wisconsin → Look up another NPI →
Also registered at 4061 Old Peshtigo RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Christy Brown, APNPNurse Practitioner1740299387
Verify Marianne H. Mainhardt in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license 1565Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
43% more Medicare Part D claims than the average nurse practitioner in 2024
1,587 Medicare Part D claims for 119 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. 44 claims were for opioids.
Most prescribed
- Rosuvastatin Calcium73 claims
- Gabapentin68 claims
- Amlodipine Besylate59 claims
- Losartan Potassium54 claims
- Lisinopril42 claims
- Albuterol Sulfate Hfa40 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.
Bills Medicare through one group practice
- Aurora Medical Group, Inc.Milwaukee, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marianne H. Mainhardt among 3,995 nurse practitioner records in Wisconsin
Marianne H. Mainhardt, 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
- Graduated2006 · median 2017 among the 2,701 with a school on file
- Record last updated2024 · 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).
32 nurse practitioner records list a practice address in Marinette
They are 32 of the 452 NPPES records with a practice address in Marinette, and 3,995 nurse practitioner records in Wisconsin.
All 3,995 in Wisconsin → Every provider in Marinette → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Christy Brown, APNPMarinette, WI 541431740299387
- Katherine Callies, APNPMarinette, WI 541431063424257
- Sharon Fellion, RNC WHNPMarinette, WI 541431174511943
- Jennifer Friday, NPMarinette, WI 541431568750834
- Elaine Gavaras, NPMarinette, WI 541431518054030
- Dianna Langner, ARNP, MSN, RNMarinette, WI 541431528322849
- Kathleen Magnin, A.N.P.Marinette, WI 541431306821517
- Nicole Pullin, NPMarinette, WI 541431790046118
Common questions
What is Marianne H. Mainhardt, NP's NPI number?
Marianne H. Mainhardt, NP's National Provider Identifier (NPI) is 1932290004, issued on Sep 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marianne H. Mainhardt, NP located?
The NPPES record lists a practice address at 4061 Old Peshtigo RD, Marinette, WI, 54143. Phone: (715) 732-8000. Providers update this record themselves, so call before visiting.
How can I verify Marianne H. Mainhardt, NP's license?
NPPES lists Wisconsin license number 1565, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.
How much does Marianne H. Mainhardt, NP prescribe under Medicare Part D?
In 2024, Marianne H. Mainhardt, NP had 1,587 Medicare Part D claims for 119 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.
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.