Meet our team of passionate advocates

& therapists

Nina Ythier



Founder & CEO

Nina Ythier, a dedicated New York State Licensed Clinical Social Worker, has a rich background in leadership and social work. With experience in various social service agencies, she has become a staunch advocate for her clients. Her expertise spans across trauma, homelessness, domestic violence, sexual assault, mental illnesses, disabilities, and substance abuse. In 2017, she founded Mind Speak, Inc., a certified MWBE, offering specialized mental health treatment and advocacy services. Nina's therapeutic approach embraces intuitive and holistic methods, empowering individuals, families, and groups through culturally conscious practices

Valerie Mardi



Westchester county

My name is Valerie Mardi, an unapologetic proud Black Woman and HBCU Hunter College Graduate. I am a Licensed Master Social Worker and my passion is working with BIPOC adults. I specialize in trauma, life transitions, relationship issues, and communication improvement. Together we can work towards building coping skills that will promote self-healing and increased confidence.

Jennifer Hernandez



Bronx, NY

Jennifer Hernandez, LMSW, is a social worker with a strong educational background, having graduated from Fordham University with a Master's degree in Social Work. She has additional certifications in Trauma-Focused Cognitive Behavioral Therapy (TF-CBT) and is a qualified Parenting Journey facilitator. Her experience primarily lies in working with individuals who have Intellectual and Developmental Disabilities (IDD) and Serious Mental Illness (SMI) across various age groups.

"As a minority, I find it important our clients see clinicians that look like them. I want to build a trusting and culturally aware rapport with all my clients"

Apart from her professional commitments, Jennifer enjoys spending quality time with her family during her free time.

Ewelina Perkowska



Queens, NY

Ewelina Perkowska, a Licensed Social Worker in the state of NY, has been serving the community for approximately 8 years; many of which in a leadership position for one of the top social service agencies in New York City. Having received her bachelor’s degreein psychology with a master’s in social work from Lehman College, Ewelina uses her professional experience toppled with her educational background to apply a practical approach to therapy. Ewelina’s experience showcases her history of working with a  wide variety of age groups, spanning many different social backgrounds which lends to her individualistic approach to therapy. With a passion for assisting New York’s at-risk population, Ewelina seeks to provide clients with strong advocacy, a firm mental and emotional foundation, as well as the compassion and support needed to reach their personal endeavors.”

You deserve a good life.

We are ready to meet you where you are

Join the

Mind Speak, Inc. Team!

Are you a heart on fire mental health professional who is seeking an opportunity to use your expertise and heart to make a difference while working independently? If so, we would be an excellent match for collaboration. We are always looking to partner with the most passionate and talented people of all cultures, religions, races, and gender expressions so that our team is a direct reflection of those we serve.

Perks Include

Competitive compensation

Flexible schedule

Flexibility in work location and ability to work in your community

Clinical supervision and peer support

An inclusive work environment that promotes growth, professional development and wellness

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