Marissa Duncan, LPC, MS, WI | Psychotherapist

What patients are saying

Overall rating

5.00

Average wait time

5.00

Bedside manner

5.00

“Marissa is very nice and open to anything to help your mental health get better. She listens and listens to understand.”

Abigail C.July 4, 2025

About Marissa Duncan

Clientele seen

Teenagers (13-17)

Seniors (65+)

Young adults (18-24)

Individuals

Adults (25-64)

Identity

Gender

Female

Languages spoken

English, German

Getting to know Marissa Duncan

Marissa Duncan, a Licensed Professional Counselor at LifeStance Health in Wisconsin, is dedicated to helping individuals of all ages navigate their mental health journeys. She earned her Master's in Clinical Mental Health Counseling from Mount Mary University and holds a Bachelor's degree from the University of Wisconsin–Stevens Point. Serving clients from adolescents to seniors, Marissa provides individual therapy designed to promote healing, personal growth, and emotional resilience. She specializes in treating anxiety, depression, PTSD/trauma, and later-life transitions, offering a compassionate, nonjudgmental space where clients can explore their thoughts, feelings, and behaviors. Marissa is passionate about supporting individuals facing challenges related to women's issues, such as self-esteem struggles, relationship difficulties, and panic disorders. She also focuses on helping clients manage complex medical conditions and chronic pain, recognizing the intricate relationship between mental and physical health. Through her expertise in Cognitive Behavioral Therapy (CBT), Dialectical Behavior Therapy (DBT), and mindfulness practices, Marissa helps clients build coping skills that promote long-term well-being. In addition to her core specialties, she offers tailored support to LGBTQ+ individuals, helping them navigate gender identity concerns and the unique pressures they may face. Her practice is inclusive and welcoming to all, ensuring every client feels respected and understood. Outside of her work, Marissa enjoys hiking, traveling, and exploring marine wildlife. She also finds joy in cooking, solving puzzles, and coloring-hobbies that reflect her appreciation for mindfulness and creativity.

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Popular visit reasons

Anxiety Disorder

Depression

New Patient Visit

Nightmares

Psychotherapy

Psychotherapy Intake / Initial Visit

Sleep Problems

Young Adult Issues

Anxiety Disorder

Depression

New Patient Visit

Nightmares

Office location

Marissa Duncan, LPC, MS also offers online video visits for patients

Lifestance Health - Wisconsin

1317 W Grand Ave, Port Washington, WI 53074

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Education and background

Practice names

Lifestance Health - Wisconsin

Education and training

Mount Mary University, Master's in Clinical Mental Health Counseling
University of Wisconsin–Stevens Point (Bachelor's)

NPI number

1134995152

Patient reviews

All reviews have been submitted by patients after interacting with the practice.

Overall rating

5.00

Wait time

5.00

Bedside manner

5.00

Your trust is our top concern, so providers can't pay to alter or remove reviews. We also don't publish reviews that contain any private patient health information. Learn more here

2 reviews

Most relevant

Marissa is very nice and open to anything to help your mental health get better. She listens and listens to understand.

July 4, 2025Abigail C.Verified patient

March 24, 2026Jacob W.Verified patient

Frequently asked questions

How soon can I make an appointment with Marissa Duncan?

Generally, Marissa Duncan has appointments available on Zocdoc within 1 week. You can see Marissa Duncan's earliest availability on Zocdoc and make an appointment online.

Is Marissa Duncan accepting new patients?

Marissa Duncan generally accepts new patients on Zocdoc. You can see Marissa Duncan's earliest availability on Zocdoc and schedule an appointment online.

Does Marissa Duncan accept my insurance?

Choose your insurance plan to verify if Marissa Duncan is in-network.

Can I make an appointment with Marissa Duncan online?

Yes, you can make an appointment online with Marissa Duncan using Zocdoc. It’s simple, secure, and free.

What practice does Marissa Duncan work with?

Marissa Duncan works with Lifestance Health - Wisconsin.

Where is Marissa Duncan's office located?

Marissa Duncan has 2 office locations in Port Washington, view full addresses on Marissa Duncan's profile.

What are common reasons for patients to see Marissa Duncan?

Marissa Duncan frequently sees patients for Depression, New Patient Visit, Psychotherapy, Psychotherapy Intake / Initial Visit, and Sleep Problems. You can see other visit reasons for Marissa Duncan on their profile.

What languages does Marissa Duncan speak?

Marissa Duncan speaks English and German.

How do patients rate Marissa Duncan in reviews?

2 patients have reviewed Marissa Duncan. The overall rating for this doctor is 5/5. They have a 5/5 rating for bedside manner and a 5/5 rating for wait time. You can read individual reviews and ratings on their profile.