NPI Portal NPI Lookup & Verification

Mr. Steven S Wille, LPC

Mr. Steven S Wille is a Mental Health Counselor provider (Counselor) practicing in Appleton, WI, registered in the NPPES registry with NPI 1851541080 since 2008. The credential LPC stands for Licensed Professional Counselor.

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NPI 1851541080
Entity type Individual (Type 1)
Name Mr. Steven S Wille
Credential LPC
Sex Male
Practice address 4321 W COLLEGE AVE STE 200, Appleton, WI, 54914
Phone 9206103473
Enumeration date 2008-09-24
Last updated in NPPES 2026-04-29

Taxonomy & licenses

Taxonomy code Specialty Primary License State
101YP2500X Professional Counselor Secondary 4181-125 WI
101YM0800X Mental Health Counselor Primary 4181-125 WI

LPC — Licensed Professional Counselor: A licensed mental-health counselor providing psychotherapy. About the LPC credential

Other identifiers

Identifier Type State Issuer
43744500 Medicaid WI
Copy-ready billing details
Provider: Steven Wille, LPC
NPI: 1851541080
Taxonomy: 101YM0800X (Mental Health Counselor)
Address: 4321 W COLLEGE AVE STE 200, Appleton, WI, 54914

Other providers at this practice address

NPI Name Type Specialty Location
1598885709 Ruth Nelson-Lau Individual Family Nurse Practitioner Appleton, WI
1104096189 Sandra Mittelsteadt Individual Professional Counselor Appleton, WI
1891085130 Eric Rueff Individual Child & Adolescent Psychiatry Physician Appleton, WI
1033485552 Emily Hoch Individual Clinical Social Worker Appleton, WI
1427495829 Loretta Markus Individual Psychologist Appleton, WI
1922422807 Sarah Saleemi Individual Internal Medicine Physician Appleton, WI
1235630625 The Cervical Spine Institute and Neuromonitoring, LLC Organization Clinical Neurophysiology Physician Appleton, WI
1033745930 Northeast Wisconsin Surgical Assistants, LLC Organization Physician Assistant Appleton, WI

Verify this record

Cross-check NPI 1851541080 against the authoritative CMS record: view Mr. Steven S Wille 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

What specialty is Steven Wille?
Steven Wille is registered in NPPES with the primary taxonomy of Mental Health Counselor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2026-04-29.