Erin C. Lassanske, NP
Family Nurse Practitioner · Milwaukee, WI
Erin C. Lassanske, NP is a family nurse practitioner with a practice address in Milwaukee, Wisconsin, and NPI 1235135559, issued on Jun 22, 2005. Check the license (Wisconsin 2564-33, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Erin C. Lassanske
- Credential
- NP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 2564-33 WI
Self-reported in NPPES; status is on the state search - Practice location
- 2901 W KK River Pkwy, Milwaukee, WI 53215
- Phone
- (414) 645-6070
- Enumerated
- Jun 22, 2005
- Record last updated
- Jul 13, 2026
- Fax
- (414) 645-6354
- Medicaid ID
- 41195700 WI
- Medicare enrollment
- Enrolled (PECOS I20040921001193); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 2901 W KK River Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Tarun KauraGastroenterology Physician1255640058
- Nilay Kumar, M.D., M.P.HGastroenterology Physician1427123702
- Franklin Loo, M.D.Gastroenterology Physician1376505255
- Imran Niazi, MDClinical Cardiac Electrophysiology Physician1689670754
- Tarun Sharma, MDGastroenterology Physician1104037340
- Ruth Treisman, ARNPAdult Health Nurse Practitioner1194056036
Verify Erin C. Lassanske in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license 2564-33Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5% fewer Medicare Part D claims than the average family nurse practitioner in 2024
1,245 Medicare Part D claims for 361 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 28% of claims.
Most prescribed
- Metoprolol Succinate195 claims
- Eliquis194 claims
- Xarelto135 claims
- Amiodarone Hcl133 claims
- Sotalol90 claims
- Metoprolol Tartrate84 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).
Industry payments in 2024: $3,768.61
13 payments; by number, the most common kind was food and beverage; the largest payer was Zoll Services LLC (a/k/a Zoll LifeCor Corp). The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
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).
458 family nurse practitioner records list a practice address in Milwaukee
They are 458 of the 18,389 NPPES records with a practice address in Milwaukee, and 2,814 family nurse practitioner records in Wisconsin.
All 458 in Milwaukee → All 2,814 in Wisconsin → Every provider in Milwaukee →
Other family nurse practitioner records in Wisconsin
- Amanda Abaya, APNPAppleton, WI1053145193
- Monaliza Abdela, FNPBrookfield, WI1760288336
- Ayia AbdeljabbarOak Creek, WI1285386094
- Adetoun Abolurin, FNPOak Creek, WI1316411390
- Anne Abresch, NURSE PRACTITIONERMilwaukee, WI1578867479
- Sumar AbushaqraSheboygan, WI1023488475
- Lindsay AchesonMilwaukee, WI1457940264
- Tyler Adamczak, APNPChippewa Falls, WI1538031588
- Inez Adams, NPWest Allis, WI1255877544
- Samantha AdamsOshkosh, WI1467853622
Common questions
What is Erin C. Lassanske, NP's NPI number?
Erin C. Lassanske, NP's National Provider Identifier (NPI) is 1235135559, issued on Jun 22, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Erin C. Lassanske, NP located?
The NPPES record lists a practice address at 2901 W KK River Pkwy, Milwaukee, WI, 53215. Phone: (414) 645-6070. Providers update this record themselves, so call before visiting.
How can I verify Erin C. Lassanske, NP's license?
NPPES lists Wisconsin license number 2564-33, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.
How much does Erin C. Lassanske, NP prescribe under Medicare Part D?
In 2024, Erin C. Lassanske, NP had 1,245 Medicare Part D claims for 361 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
What is Erin C. Lassanske, 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.