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Colleen McMahon, PhD, LP

Licensed Psychologist

Dr. Colleen McMahon is a licensed psychologist who specializes in evidence-based treatments for children, teens, and young adults experiencing anxiety and emotional distress. She uses cognitive behavior therapy, applied behavior analysis, and behavior therapy to help children and families manage life’s challenges. Dr. McMahon offers children, teens, and families practical and proven intervention recommendations that can reduce stress and improve well-being.


Dr. McMahon grew up in the Des Moines area and earned her Ed.S. and Ph.D. degrees from The University of Iowa. She was a tenured associate professor of psychology at Cleveland State University in Ohio and a school psychology trainer at the University of California in Riverside.

Colleen McMahon, PhD, LP

In-person: West Des Moines, Iowa
Telehealth: Iowa

Professional Affiliations

Education and Experience

2026-current

Licensed Psychologist, Anxiety & OCD Treatment Services

2025-current

Private Practice Psychologist

​1998-2024

Associate Professor, Department of Psychology, Cleveland State University

​1992-1998

Assistant Professor, School of Education, University of California-Riverside

ANXIETY & OCD
TREATMENT SERVICES

OFFERING SERVICES TO IOWA, ALABAMA, FLORIDA, WISCONSIN, MICHIGAN,  AND VERMONT RESIDENTS
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Contact Information

admin@anxietytreatmentonline.com

Phone: (515) 216-0679

Fax: (515) 446-9716 

West Des Moines Office

1454 30th St, Suite 101

West Des Moines, IA  50266

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