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Therapist in Mukwonago, Wisconsin Jacob Mecca-Guillien, Therapist

Gender Identity: Male (He/Him)

Ages Served: 18-75+

Appointments: In-office and Online

Manages Medications: No, provides therapy only

Accepts Insurance: Yes - View accepted plans

Jacob Mecca-Guillien, Therapist

Jacob Mecca-Guillien, MS, LPC

Specializes In:

ADHD
Attention & focus
Depression/feeling down
Self-esteem
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Jacob Mecca-Guillien is a Licensed Professional Counselor who has earned his Master’s Degree in Counseling from the University of Wisconsin-Whitewater. He works with adults who are dealing with ADHD, depression, anxiety disorders, grief, stress management, and adjustment difficulties. His goal is to help clients achieve their personal goals toward wellness and recovery in their lives.

Jacob is an ADHD-Clinically Certified Service Provider (ADHD-CCSP), with specialized training in the assessment and treatment of ADHD in adults across the lifespan. He brings a nuanced understanding of executive functioning challenges and tailors interventions to support clients in building practical skills, improving focus, and enhancing self-regulation.

He is also a trained practitioner of Acceptance and Commitment Therapy (ACT), a mindfulness-based behavioral therapy that helps clients develop psychological flexibility and live in alignment with their values, even in the presence of difficult thoughts and emotions. Jacob integrates ACT alongside Cognitive Behavioral Therapy (CBT) and Dialectical Behavior Therapy (DBT), as well as other evidence-based modalities, to create a compassionate and individualized approach for each client.

In his free time, Jacob enjoys spending time with his wife, family, and friends. He loves getting time on his motorcycle, snowboarding, and playing board games with friends.

Types of Care & Ages Served

Areas of Focus

Individual Therapy

Get help addressing challenges and improve well-being with a clinician's guidance.

  • ADHD
  • Attention & focus
  • Depression/feeling down
  • Self-esteem
  • Aging
  • Anger issues
  • Anxiety
  • Career & relationships (mid-life)
  • Career & work issues
  • Early adulthood: Independent living or relationships
  • Early adulthood: Starting college or career
  • Empty nesters
  • General relationship issues
  • Grief & loss
  • LGBTQ+
  • Marital stress or divorce
  • Men's health/issues
  • Panic attacks
  • Parenthood
  • Phobias
  • Premarital counseling
  • Retirement
  • Sleep issues or insomnia
  • Social skills & communication
  • Stress management

Languages

  • English

Education

  • University of Wisconsin - Whitewater

FAQs

Please call us at 262-458-9436 to schedule an appointment with Jacob Mecca-Guillien.

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See what our patients are saying about Jacob Mecca-Guillien

I have been working with Jacob for the past year and I cannot say enough good things about him as a therapist! Jacob is very knowledgeable, a fantastic listener, and truly cares about the wellbeing of his patients. I was nervous to start therapy as I've heard many people discuss the difficulty of finding someone who is the right fit. One of my biggest concerns was ending up with a therapist that only focuses on validating my feelings and repeatedly talking about the same struggles, but doesn't push me to actually make positive changes. I didn't want to find myself caught in an echo chamber that stagnates my life and doesn't provide any skills or meaningful coping strategies. I have seen this happen to people close to me and it can be damaging. Not to mention, therapy can be quite expensive; it's important to make sure that your seeing positive results from it. Rest assured, this is absolutely not a concern with Jacob. Jacob has a very warm, inviting personality that makes opening up feel quite natural and safe. He does a wonderful job of listening intently and validating your concerns, then providing helpful tools and resources to improve your situation - whether that be skill worksheets, books, online tools, online groups/orgs, or just offering a totally unique perspective on a situation. I appreciate his ability to offer multiple solutions without causing overwhelm as well as his consistency in following up on your progress and tailoring the tools to fit you and your life circumstances. My life has changed drastically for the better this past year and, while I of course had to do the work to make it happen, I am am so grateful to have had Jacob in my corner helping guide me through the many challenging situations. His guidance has been invaluable.
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Hannah A.

Hannah A.

Sep 19, 2025
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Very knowledgeable, great listener, and has a warm and welcoming demeanor. Gives modalities based on your individual needs and not a general basis. Highly recommended!
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Courtney L.

Courtney L.

May 22, 2024
Google Google
I've been working with Jacob for a little over a year. Making appointments is easy and convenient. He's a great therapist. 👍
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Jessica Jerde (.

Jessica Jerde (.

Oct 17, 2024
Google Google
Very helpful and knowledgeable. Good listener.
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Mark S.

Mark S.

Aug 28, 2024
Google Google
Excellent experience
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Bev J.

Bev J.

Oct 24, 2025
Google Google
Excellent experience
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Tom

Tom

Apr 12, 2025
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Patient Review Disclaimer

The testimonials and reviews shared on our platforms reflect the personal experiences and opinions of individuals voluntarily shared on third-party sites (e.g., Google). These reviews are voluntarily provided and are not compensated, solicited, or endorsed by LifeStance Health.

Important Notes:

  • Reviews do not represent the views of LifeStance Health, Inc., its clinicians, or affiliates
  • Individual results may vary – testimonials are not guarantees of similar outcomes
  • We do not independently verify the clinical accuracy or authenticity of statements
  • Clinician qualifications, expertise, and fit for your specific needs should be assessed through direct consultation

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