Accepted insurance & self-pay
About Milissen
Milissen Nunez is a Licensed Professional Counselor with over 8 years of experience in mental health. A proud U.S. Marine Corps veteran, she specializes in trauma, anxiety, depression, and life transitions. She has worked with clients of all ages, including individuals facing ADHD, autism spectrum disorder, oppositional defiance disorder, substance use, and personality disorders.
Milissen earned her Master’s in Mental Health Counseling from Northwestern University. Her approach is trauma-informed, person-centered, and evidence-based. She fosters a collaborative, respectful space tailored to each client’s unique needs and draws on strengths-based tools to support growth and resilience.
Milissen is passionate about walking alongside clients through life’s challenges with warmth and empathy. She believes healing begins with connection and welcomes individuals and families ready to take that first step toward meaningful change.

"As a proud Hispanic female veteran and devoted family woman, I bring a strong sense of dedication, integrity, and community to everything I do, personally and professionally."
Get to know Milissen
Why did you decide to become a counselor or psychiatric provider?
My journey to becoming a counselor is deeply personal and rooted in both lived experience and a passion for advocacy. As a Hispanic female veteran, I’ve seen firsthand the urgent need for mental health support—both within the military community and beyond. I’ve also navigated my own struggles with ADHD, which has shaped my understanding of how crucial compassionate, informed care can be. These experiences ignited a strong desire to become a voice for mental health awareness and accessibility.
Originally, my goal was to work with the Department of Veterans Affairs to serve my fellow veterans, offering them the support I know many of us need but often struggle to find. However, as I began working in the civilian sector, I was struck by the overwhelming need for mental health services across all populations. I chose to stay and continue serving in this space, committed to making a difference in the lives of individuals and families from all walks of life.
Being a counselor is more than a profession for me—it’s a calling. I’m dedicated to creating a safe space where people feel understood, empowered, and supported on their journey toward healing.
What types of clients do you work with best?
I works best with individuals who are ready to explore their experiences with honesty and openness, even if they’re not sure where to start. I connect especially well with veterans, children, adolescents, and adults navigating anxiety, ADHD, trauma, and life transitions. With a calm, supportive presence, I am able to help clients who may feel overwhelmed, misunderstood, or stuck. Whether someone is managing a recent diagnosis or carrying the weight of long-term challenges, I am able to meet my clients with empathy, patience, and a practical approach to growth and healing.
What type of clients are you most excited to work with?
I’m most excited to work with clients who are ready to take steps—big or small—toward healing and self-discovery. I have a deep passion for supporting veterans, children, and adults who are navigating trauma, ADHD, anxiety, or life transitions. I especially value working with those who may feel overlooked or misunderstood, and I’m honored to help them feel seen, supported, and empowered. Whether you’re just starting your journey or continuing one, I’m here to walk alongside you with empathy, patience, and purpose.
What's one thing you wish all clients knew?
One thing I wish all clients knew is that healing doesn’t have to look perfect—and you don’t have to have it all figured out to start. Just showing up is a powerful first step. As your therapist (and you can call me Milly), I’m here to walk alongside you without judgment, at your pace, and with genuine care. You're not alone in this.
Why did you choose to practice at Thriveworks?
Chose to practice at Thriveworks because of the support, flexibility, and reach it offers—especially through telehealth. Being able to connect with clients virtually allows me to meet people from all walks of life and provide care to those who may not have easy access to in-person services. It broadens the scope of who I can support, which aligns with my passion for making mental health care more accessible. Thriveworks also shares my commitment to client-centered care and creates an environment where both therapists and clients can thrive.
What inspires you?
I’m inspired every day by the resilience of my mother, who showed me the strength of perseverance and grace in the face of adversity. I carry that lesson with me in my work and in life. I’m also deeply moved by the growth I witness in my clients—the courage it takes to show up, do the work, and transform through the therapeutic process is truly powerful. My children and husband are a constant source of motivation—their love, support, and understanding keep me grounded and grateful. My faith and a positive attitude help me stay centered, even during life’s most difficult moments. Together, these pieces inspire me to keep showing up with compassion, hope, and purpose.
What can clients expect in their first session with you?
In your first session with me, you can expect a welcoming, judgment-free space where you’re encouraged to just be yourself. We’ll take the time to get to know each other, talk about what brings you to therapy, and begin identifying your goals. There’s no pressure to share everything right away—this is your time, and we’ll go at a pace that feels comfortable for you. My priority is to help you feel heard, supported, and safe as we start this journey together.
What do you want to accomplish with an individual in their first session?
In our first session, my main goal is to begin building a strong, trusting relationship where you feel safe, respected, and understood. We’ll talk about what brought you to therapy, explore what you’re hoping to gain, and begin setting clear, realistic expectations for our work together. I also want to give you space to ask questions and share anything that feels important. Establishing that connection early on is essential—because therapy works best when it’s built on a genuine, collaborative relationship.
What should clients know about you before scheduling a first session?
Before scheduling a session with me, I want you to know that I'm a down-to-earth, compassionate person who truly values connection and authenticity. I grew up in New York City and joined the Marine Corps at 19, which taught me resilience, discipline, and the importance of service. I now find balance through self-care—losing myself in a good book, spending time with my family, or enjoying quiet moments alone. My 10-year-old German Shepherd has me completely trained; when he wants a walk or a snack, I happily give in every time. I also have a deep love for learning and consider myself a lifelong student, always exploring ways to grow personally and professionally. I bring that same curiosity and commitment to my work as a therapist, and I look forward to meeting you exactly where you are.
What do you do for fun/on your time off?
For fun, I love getting lost in a good book—it’s one of my favorite ways to unwind and recharge. I’m very family-oriented, so spending quality time with my husband, kids, and our dog is something I truly cherish. At the same time, I also value my alone time, whether it’s taking a quiet walk, journaling, or simply enjoying a peaceful moment to myself. That balance between connection and solitude keeps me grounded.
What's one thing about you that defines you (non-professional)?
One thing that defines me is my strong work ethic and deep connection to family. I’ve always been someone who takes charge, especially when it comes to standing up for others and advocating for what’s right. My drive to make a difference—whether through social advocacy or supporting loved ones—comes from the values I was raised with and the bonds that keep me grounded.
Other areas of focus
Education and training
- Years in practice
- 8 years
- Graduating institute
- Northwestern University
- Graduating degree
- Master of Arts in Mental Health Counseling
