Duanne Lafrenz, MSW, LCSW
Clinical Social Worker · Lake Geneva, WI
Duanne Lafrenz, MSW, LCSW is a clinical social worker with a practice address in Lake Geneva, Wisconsin, and NPI 1124057294, issued on Jul 1, 2006. Check the license (Wisconsin 12-123, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Duanne Lafrenz
- Credential
- MSW, LCSW
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License number
- 12-123 WI
Self-reported in NPPES; status is on the state search - Practice location
- 101 Broad St, Lake Geneva, WI 53147
- Phone
- (262) 248-7942
- Enumerated
- Jul 1, 2006
- Record last updated
- Apr 15, 2013 (not updated in 13 years: call before relying on the address or phone)
- Medicaid ID
- 39509900 WI
- Medicare enrollment
- Enrolled (PECOS I20071114000252); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest clinical social worker records → All 4,142 in Wisconsin → Look up another NPI →
Also registered at 101 Broad St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Duanne Lafrenz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license 12-123Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Lake Geneva Wellness Clinic LLCLake Geneva, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Duanne Lafrenz among 4,142 clinical social worker records in Wisconsin
Duanne Lafrenz, MSW, LCSW is one of 4,142 clinical social worker records with a practice address in Wisconsin. 22% 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 2% of them.
- NPI issued2006 · 2% of these records are older, 80% newer
- In a Medicare fileYes · 22% of these records are
- In the CMS Doctors and Clinicians fileYes · 29% of these records are
- Graduated1968 · median 2010 among the 1,186 with a school on file
- Record last updated2013 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1041C0700X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
10 clinical social worker records list a practice address in Lake Geneva
They are 10 of the 366 NPPES records with a practice address in Lake Geneva, and 4,142 clinical social worker records in Wisconsin.
All 4,142 in Wisconsin → Every provider in Lake Geneva → Clinical Social Worker nationwide →
The 8 clinical social worker records with the nearest ZIP codes
- Amy CeshkerLake Geneva, WI 531471326631433
- Mervin Langley, LCSWLake Geneva, WI 531471932317831
- Laurie Linden, LCSWLake Geneva, WI 531471659618346
- Craig Luebke, LCSWLake Geneva, WI 531471467446989
- Mark Mohapp, LCSW, CSACLake Geneva, WI 531471861487647
- Alexandria MoranLake Geneva, WI 531471386417244
- Susan O'Connell, MSW, LCSWLake Geneva, WI 531471417046376
- Lauren Orlofsky, LCSWLake Geneva, WI 531471891250817
Common questions
What is Duanne Lafrenz, MSW, LCSW's NPI number?
Duanne Lafrenz, MSW, LCSW's National Provider Identifier (NPI) is 1124057294, issued on Jul 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Duanne Lafrenz, MSW, LCSW located?
The NPPES record lists a practice address at 101 Broad St, Lake Geneva, WI, 53147. Phone: (262) 248-7942. Providers update this record themselves, so call before visiting.
How can I verify Duanne Lafrenz, MSW, LCSW's license?
NPPES lists Wisconsin license number 12-123, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity 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.