Robertus F. Theisen, PhD, Clinical Psychologist

Practice Context in IntroTherapy

• • IntroTherapy lists 31 mental health practices in Colchester. Robertus F. Theisen, PhD, Clinical Psychologist is one of them.
• • 1,373 practices statewide in Vermont are tracked in our directory.
• • Typical psychologist compensation in Vermont: $80,000 – $150,000 (median $92,000). 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 July 2026.