About Us

Sheridan Counseling Group
About Sheridan Counseling Group, PC
Sheridan Counseling Group, PC, was founded on the principle that everyone deserves access to compassionate, individualized mental health care. Located in Chicago, we offer a supportive and safe space where clients can explore their thoughts and emotions, develop healthy coping strategies, and work towards lasting personal growth.
Our Approach
With over 25 years of experience, our practice combines the insights gained from extensive clinical work with a deep understanding of the complexities of human behavior. We primarily use a client-centered approach, which means we prioritize building a strong therapeutic relationship based on trust and rapport. Our sessions are conversational and relaxed.
We incorporate techniques from psychodynamic therapy and Cognitive Behavioral Therapy (CBT) to address both immediate concerns and deeper, underlying issues.
We believe that therapy is not a one-size-fits-all process.
Instead, we tailor our approach to meet the unique needs of each client, helping them gain insight into their behaviors and emotions, and empowering them to make positive, lasting changes.
Our Services
Sheridan Counseling Group offers a range of services, including:

  • Individual Therapy: Personalized sessions focused on addressing personal challenges, mental health concerns, and emotional well-being.
  • Couples Therapy / Marriage Counseling: Helping couples strengthen their relationships, improve communication, and resolve conflicts.
Meet the Founder
Mark Vastola, LCPC, is the founder of Sheridan Counseling Group and brings over 25 years of experience in the mental health field. Mark’s approach to therapy is eclectic, but deeply rooted in client-centered and psychodynamic principles. He believes that the therapeutic relationship is key to meaningful change and works to ensure that every client feels heard, understood, and supported. Mark’s extensive experience has taught him the importance of tailoring therapy to the individual, focusing on both coping strategies for immediate relief and addressing deeper issues for lasting change.
Meet Our Team
At Sheridan Counseling Group, our team of dedicated therapists brings a wealth of experience and expertise to support our clients:

  • Mark Vastola, LCPC: With over 25 years of experience, Mark specializes in helping clients gain insight and develop coping strategies through a client-centered, psychodynamic approach. His eclectic style ensures that therapy is tailored to the needs of each individual, with an emphasis on building rapport and trust.
  • Dori Geil, LCPC: A seasoned therapist with training in EMDR and addictions, Dori offers individual and couples therapy. She is dedicated to helping clients resolve personal and professional concerns through an interactive and empathetic therapeutic relationship.
  • Sara Springer, LCPC: Sara brings a client-centered approach to therapy, emphasizing the importance of humor, rapport, and understanding clients’ daily lives. She works primarily with adults dealing with mental health challenges such as depression, anxiety, and loss, helping them navigate difficulties and improve their quality of life.
  • Renee Demarchi, LCSW: With 20 years of experience, Renee combines psychodynamic therapy with CBT to help clients explore their emotions and make positive changes in their lives. Her background in medical settings provides her with a unique perspective on the interplay between physical and mental health.
Insurance and Payment
We accept several insurance plans, including: Blue Cross and Blue Choice PPO, Blue Cross HMO (Amita/Ascension group), United Healthcare (Optum/UMR), Cigna, and Aetna. If your insurance is not listed, please call us to double check.

We do recommend that clients contact their insurance company to confirm network status and benefit levels to understand potential costs.

Our goal is to make high-quality mental health care accessible, and we offer flexible payment options to accommodate your needs.

Contact Us
If you’re ready to begin your journey toward better mental health, contact us today. We are here to support you every step of the way. Call us at 773-807-0841
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