Katherine Woolsey, LCPC Independent Contractor at Cornerstone Counseling

Practice Context in IntroTherapy

• • IntroTherapy lists 5 mental health practices in Maryville. Katherine Woolsey, LCPC Independent Contractor at Cornerstone Counseling is one of them.
• • 1,917 practices statewide in Illinois are tracked in our directory.
• • Typical counselor compensation in Illinois: $42,000 – $84,000 (median $53,000). Source: BLS OEWS, state cost-of-labor adjusted.

Data compiled from U.S. state licensing boards, NPI public registry, and verified practice listings. Mental health is a YMYL topic — we prioritize licensed, verified providers only. Methodology & sources · Updated May 2026.