NPPES file of Aug 9, 2026

Heather N. Mikkelson, LCSW,CSAC

Clinical Social Worker · Appleton, WI

Heather N. Mikkelson, LCSW,CSAC is a clinical social worker with a practice address in Appleton, Wisconsin, and NPI 1588190607, issued on May 10, 2017. Check the license (Wisconsin 9240-123, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1588190607
Name
Heather N. Mikkelson
Credential
LCSW,CSAC
Primary taxonomy
Clinical Social Worker 1041C0700X
License number
9240-123 WI
Self-reported in NPPES; status is on the state search
Practice location
5471 W Waterford LN, Appleton, WI 54913
Phone
(920) 731-7445
Enumerated
May 10, 2017
Record last updated
Mar 30, 2026
Medicare enrollment
Enrolled (PECOS I20191219002807); may accept Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 5471 W Waterford LN

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Vicki AhoAddiction (Substance Use Disorder) Registered Nurse1003449596
  2. Karen Beutler, MDFamily Medicine Physician1215921127
  3. Mackenzie Broeren, APNP, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1407533672
  4. Maria Cripe, APNPFamily Nurse Practitioner1134895261
  5. Susan Haydar, PHDClinical Psychologist1730452400
  6. Kristin KnottBody Imaging Physician1235634510

Verify Heather N. Mikkelson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
    Search for license 9240-123
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Wisconsin license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Partnership Community Health Center IncAppleton, WI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

135 clinical social worker records list a practice address in Appleton

They are 135 of the 3,249 NPPES records with a practice address in Appleton, and 4,142 clinical social worker records in Wisconsin.

Other clinical social worker records in Wisconsin

  1. Kathryn Aalto, LCSWKenosha, WI1023193737
  2. S. Aardappel, MSWSheboygan, WI1235394834
  3. Sheena Abbitt, CSWDarlington, WI1679899728
  4. Daniel Abbott, LCSW, MFTMadison, WI1689681165
  5. Amy Abel, APSWWausau, WI1649686445
  6. Cassandra Abel, MSWElkhorn, WI1295155166
  7. Faye Abler, LCSWBrookfield, WI1366540163
  8. Queen Liza Aboyah, APSWMadison, WI1023843646
  9. Barbara Abrams, MSW ICSWMilwaukee, WI1770608093
  10. Rebecca Abrams, LCSWWauwatosa, WI1710420815

Common questions

What is Heather N. Mikkelson, LCSW,CSAC's NPI number?

Heather N. Mikkelson, LCSW,CSAC's National Provider Identifier (NPI) is 1588190607, issued on May 10, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Heather N. Mikkelson, LCSW,CSAC located?

The NPPES record lists a practice address at 5471 W Waterford LN, Appleton, WI, 54913. Phone: (920) 731-7445. Providers update this record themselves, so call before visiting.

How can I verify Heather N. Mikkelson, LCSW,CSAC's license?

NPPES lists Wisconsin license number 9240-123, 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.