Heather N Mikkelson, LCSW,CSAC
Heather N Mikkelson is a Clinical Social Worker provider (Social Worker) practicing in Appleton, WI, registered in the NPPES registry with NPI 1588190607 since 2017. The credential LCSW stands for Licensed Clinical Social Worker. Practices at Partnership Community Health Center, Inc (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1588190607 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Heather N Mikkelson |
| Credential | LCSW,CSAC |
| Sex | Female |
| Practice address | Appleton, WI, 54913 |
| Phone | 9207317445 |
| Enumeration date | 2017-05-10 |
| Last updated in NPPES | 2026-03-30 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 101YM0800X | Mental Health Counselor | Secondary | — | WI |
| 1041C0700X | Clinical Social Worker | Primary | 9240-123 | WI |
| 101Y00000X | Counselor | Secondary | — | WI |
| 101YA0400X | Addiction (Substance Use Disorder) Counselor | Secondary | — | WI |
LCSW — Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW credential
Copy-ready billing details
Provider: Heather Mikkelson, LCSW,CSAC NPI: 1588190607 Taxonomy: 1041C0700X (Clinical Social Worker) Address: Appleton, WI, 54913
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1215921127 | Karen Beutler | Individual | Family Medicine Physician | Appleton, WI |
| 1558308577 | Iris Torres | Individual | Family Medicine Physician | Appleton, WI |
| 1558423517 | Joanne Stephany | Individual | Nurse Practitioner | Appleton, WI |
| 1730452400 | Susan Haydar | Individual | Clinical Psychologist | Appleton, WI |
| 1750796488 | Kelly Thomack | Individual | Professional Counselor | Appleton, WI |
| 1235634510 | Kristin Knott | Individual | Body Imaging Physician | Appleton, WI |
| 1003449596 | Vicki Aho | Individual | Addiction (Substance Use Disorder) Registered Nurse | Appleton, WI |
| 1447870910 | Partnership Community Health Center, Inc | Organization | Federally Qualified Health Center (FQHC) | Appleton, WI |
Verify this record
Cross-check NPI 1588190607 against the authoritative CMS record: view Heather N Mikkelson on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2026-03-30.