Marilynn Klemstein, NP
Family Nurse Practitioner · Elm Grove, WI
Marilynn Klemstein, NP is a family nurse practitioner with a practice address in Elm Grove, Wisconsin, and NPI 1316377294, issued on Nov 14, 2013. Check the license (Wisconsin 5549, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Marilynn Klemstein
- Credential
- NP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 5549 WI
Self-reported in NPPES; status is on the state search - Practice location
- 12500 W Bluemound RD, Elm Grove, WI 53122
- Phone
- (262) 787-2114
- Enumerated
- Nov 14, 2013
- Record last updated
- Nov 7, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20140218000441); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 2,814 in Wisconsin → Look up another NPI →
Also registered at 12500 W Bluemound RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Erica Conley, PHARMD, BCPSPharmacist1710502257
- Holly Dorscheid, PHARMDPharmacist1053937193
- Marisa Goninen, PHARMDAmbulatory Care Pharmacist1164047684
- Jesse Schaetzel, PHARMDPharmacist1518211648
Verify Marilynn Klemstein in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license 5549Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
12% more Medicare Part D claims than the average family nurse practitioner in 2024
1,459 Medicare Part D claims for 238 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Atorvastatin Calcium166 claims
- Lisinopril92 claims
- Levothyroxine Sodium76 claims
- Amlodipine Besylate68 claims
- Sertraline Hcl53 claims
- Metformin Hcl45 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): 82.4 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
- Ascension Medical Group-Southeast Wisconsin IncBrookfield, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marilynn Klemstein among 2,814 family nurse practitioner records in Wisconsin
Marilynn Klemstein, NP is one of 2,814 family nurse practitioner records with a practice address in Wisconsin. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 26% of them.
- NPI issued2013 · 26% of these records are older, 71% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2013 · median 2019 among the 1,740 with a school on file
- Record last updated2018 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Family Nurse Practitioner providers in Wisconsin
There are 2,814 family nurse practitioner records in Wisconsin.
All 2,814 in Wisconsin → Every provider in Elm Grove → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Sandra Arens, MSN RNElkhorn, WI 531211528318870
- Susan Egan, MSN,FNP-CElkhorn, WI 531211093898645
- Kelly Brendel, FNP-BCEast Troy, WI 531201407269236
- Colleen Fraley, APNPGreendale, WI 531291861849820
- Samantha Khundmiri, RN, APNPGreendale, WI 531291104402361
- Lisa Wang, APRN, FNPDelavan, WI 531151689000911
- Erin Rafalow, NPHales Corners, WI 531301245114792
- Wendy Edwards, APNPFranklin, WI 531321518900356
Common questions
What is Marilynn Klemstein, NP's NPI number?
Marilynn Klemstein, NP's National Provider Identifier (NPI) is 1316377294, issued on Nov 14, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Marilynn Klemstein, NP located?
The NPPES record lists a practice address at 12500 W Bluemound RD, Elm Grove, WI, 53122. Phone: (262) 787-2114. Providers update this record themselves, so call before visiting.
How can I verify Marilynn Klemstein, NP's license?
NPPES lists Wisconsin license number 5549, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.
How much does Marilynn Klemstein, NP prescribe under Medicare Part D?
In 2024, Marilynn Klemstein, NP had 1,459 Medicare Part D claims for 238 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
What is Marilynn Klemstein, NP's MIPS final score?
The 2023 MIPS final score is 82.4 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.