Meet Our Team

Meet Our Team

At Top Tier Therapy Billing, our team brings together experienced therapy billing specialists who understand the unique needs of mental health providers. From denial management to HIPAA-compliant billing workflows, we focus on accuracy, compliance, and compassion—so providers can focus on client care while we manage the billing process.

Norlisha Gistarb headshot

Norlisha Gistarb

Founder & Lead Billing Specialist

20 years of experience in medical and mental health billing. Specializes in denial management, credentialing, and HIPAA compliance to help providers streamline revenue and reduce stress.

Cuoshatta Tolliver headshot

Cuoshatta Tolliver

Billing & A/R Specialist

Certified Medical Assistant with 15+ years in behavioral health billing. Skilled in Charm software and both commercial and government payers, delivering accurate, compassionate support.

Work With a Team That Cares

Tell us about your practice—we’ll respond within 1 business day. Let us simplify your billing workflows so you can focus fully on your clients.

Scroll to Top