Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Jennifer Helene Olkowski, LPC, CADC III

Professional Counselor in Appleton, WI · enumerated 2007 · practices at Milwaukee Health Services.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1992841795

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Registry record

Entity type Individual (Type 1)

Name Jennifer Helene Olkowski

Credential LPC, CADC III

Sex Female

Practice address Appleton, WI, 54911

Phone (920) 202-3954

Enumeration date Jan 29, 2007

Last updated in NPPES Jan 14, 2009

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License 11543 (WI) Secondary

101YP2500X Professional Counselor Behavioral Health & Social Service Providers · License 3526-125 (WI) Primary

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

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 → Validate an NPI →

Frequently asked questions

Where does Jennifer Olkowski practice?

The practice location on file with NPPES is in Appleton, WI. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Jennifer Olkowski?

The National Provider Identifier (NPI) for Jennifer Olkowski is 1992841795, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Ashley Behling Addiction (Substance Use Disorder) Counselor · Appleton, WI NPI 1477878551 Milwaukee Health Services Substance Abuse Rehabilitation Facility · Appleton, WI NPI 1578883567 Jennifer Cronin Licensed Practical Nurse · Appleton, WI NPI 1114247673 Parnee Paras Licensed Practical Nurse · Appleton, WI NPI 1407162860 Jane Jumes Physician Assistant · Appleton, WI NPI 1053661892 Gwendolynn Stella Licensed Practical Nurse · Appleton, WI NPI 1497170344 Ashley Bessette Licensed Practical Nurse · Appleton, WI NPI 1073903829 Connie Jo Delongchamp Licensed Practical Nurse · Appleton, WI NPI 1710357934

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-01-14.