Find In-Network Evernorth (Cigna) Therapists, Psychiatrists or Psychologists in South Carolina

871 Lowcountry Blvd, Suite 200

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Nancy Winston, Therapist

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Cayce, SC

440 Knox Abbott Dr, Suite 400

Summerville, SC

651 Scholar Way, Suite 101

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Cassandra Sims, Therapist

Cassandra Sims, LISW-CP, is dedicated to helping adults in South Carolina navigate life’s challenges with evidence-based therapeutic support. She works with individuals facing anxiety, depression, PTSD, and later life transitions, providing compassionate guidance tailored to each client’s needs. With decades of experience in community mental health, Cassandra understands the complexities of emotional wellness and strives to empower individuals through practical coping strategies and mindfulness techniques. Cassandra is particularly passionate about supporting individuals experiencing grief, obsessive-compulsive disorder (OCD), and hoarding behaviors. She helps clients process loss, develop healthier thought patterns, and create structured approaches to managing overwhelming situations. By integrating Dialectical Behavior Therapy (DBT) skills with Acceptance and Commitment Therapy (ACT) and Cognitive Behavioral Therapy (CBT), she equips clients with the tools necessary to foster resilience and personal growth. In addition to individual therapy, Cassandra offers couples counseling, helping partners navigate communication barriers, relationship stress, and emotional disconnection. Her client-centered approach focuses on fostering understanding and strengthening relational bonds. She also serves military veterans and first responders, recognizing the unique mental health challenges faced by these populations and providing tailored support to enhance overall well-being. A South Carolina native, Cassandra has been practicing since 1979 and brings a wealth of experience from both community and private practice settings. When she’s not working with clients, she enjoys reading, solving crossword puzzles, word searches, and line dancing.

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Columbia, SC

115 Atrium Way, Suite 221

Columbia, SC

2000 Center Point Rd, Suite 2350

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Jason Clemons, Therapist

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Summerville, SC

651 Scholar Way, Suite 101

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Sarah McMullan, Therapist

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Mount Pleasant, SC

871 Lowcountry Blvd, Suite 200

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Erica N Armstead-Whitaker, Therapist

Erica Whitaker, LPC, helps individuals and families in South Carolina navigate life’s challenges with compassion and evidence-based care. She provides a safe, supportive environment where teens and adults can work through struggles with anxiety, depression, and life transitions. Serving patients across South Carolina through LifeStance Health, she focuses on building trust and tailoring therapy to each person’s unique needs so that they can move toward greater balance and emotional well-being. Erica works extensively with children, adolescents, teens, and adults, offering both individual and family therapy. She has particular expertise in helping clients manage ADHD, school avoidance, and women’s issues. By drawing on therapeutic approaches such as Cognitive Behavioral Therapy (CBT), Dialectical Behavior Therapy (DBT), and mindfulness, she helps clients gain tools to regulate emotions, shift unhelpful thought patterns, and improve daily functioning. She is especially passionate about supporting members of the adoption and foster care community, guiding individuals through the complexities of identity, belonging, and adjustment. Erica also works closely with LGBTQ+ individuals and families, creating an affirming space where clients feel seen, heard, and empowered. These specialties reflect her deep commitment to fostering resilience, self-acceptance, and growth in populations that often face unique challenges. Outside of her clinical work, Erica finds joy in gaming, anime, and attending concerts. She also enjoys painting and coloring as creative outlets, which bring balance and help her stay grounded.

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Cayce, SC

440 Knox Abbott Dr, Suite 400

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Rico Hogan, Therapist

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Columbia, SC

3600 Forest Drive, Suite 302

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Maire Diemer, Psychologist

Maire Diemer, PhD, helps individuals and families across South Carolina navigate emotional, behavioral, and developmental challenges with a calm, evidence-based, and compassionate approach. She supports patients across the lifespan—including children, adolescents, teens, and adults—through individual and family therapy at LifeStance Health. Her deepest clinical passion centers on early childhood concerns, women’s health and reproductive issues, trauma, and autism evaluation. Maire offers diagnostic testing services to evaluate neurodevelopmental differences, mood concerns, trauma, personality, and other clinical diagnostic questions. She provides developmentally sensitive assessment and treatment for infants, toddlers, and young children, with specialized expertise in psychological testing for autism, developmental delays, and ADHD.<br><br>In her therapy practice, she offers structured intervention, practical coping strategies, and a supportive therapeutic space that focuses on safety, continuity of care, and long-term resilience. She also supports women navigating postpartum depression and anxiety, reproductive challenges, and associated mood or identity shifts, creating space for healing that integrates both emotional and physical health experiences. Maire incorporates Cognitive Behavioral Therapy, Dialectical Behavior Therapy, Cognitive Processing Therapy, and Mindfulness-based approaches, along with additional interventions as clinically appropriate. For children and families, she offers Parent-Child Interaction Therapy and evidence based-trauma treatments. She works frequently with individuals experiencing anxiety, depression, ADHD, or trauma-related symptoms and provides care for diverse populations including LGBTQ+ individuals, people with developmental disabilities or autism spectrum disorders, and children in adoption or foster-care systems. She offers additional specialties beyond those highlighted here. Outside the office, she enjoys cooking and live music.

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Charleston, SC

854-246-1100

4000 Faber Place Drive, Suite 110

854-246-1100

Mount Pleasant, SC

871 Lowcountry Blvd, Suite 200

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Lynn Gilderhus, Therapist

Lynn Gilderhus, LPC, LMFT, helps patients build resilience, restore connection, and find practical ways to move through anxiety, depression, and trauma so they can live with greater stability and purpose. At LifeStance Health in South Carolina, he provides Individual Therapy, Couples Therapy, and Family Therapy for children, adolescents, teens, adults, and seniors, offering care that is both compassionate and grounded in evidence-based mental health treatment for the diverse communities he serves throughout the state. Lynn is especially passionate about working with trauma in all its forms, including military and combat trauma, relational trauma, childhood and developmental trauma, and school avoidance that grows out of overwhelming experiences. He brings deep clinical experience to helping people process painful memories, reduce emotional reactivity, and rebuild a sense of safety in themselves and in their relationships. This focus allows him to support lasting recovery for individuals and families impacted by PTSD and complex trauma. His primary specialties include Anxiety, PTSD/Trauma, and Couple’s Issues, with additional areas of focus available to meet a wide range of mental health needs. He works with select populations such as First Responders, Military/Veterans, and LGBTQ+ individuals, and offers a blend of Cognitive Behavioral Therapy (CBT), EMDR, and Couples/Marital Counseling, along with additional therapeutic approaches when clinically appropriate. These interventions are tailored to help clients improve coping skills, communication, and emotional regulation. With more than two decades of clinical practice, Lynn brings a steady, thoughtful approach to therapy that supports meaningful change across the lifespan. Outside of his clinical work, he enjoys spending time with family, reading, photography and travel.

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Cayce, SC

440 Knox Abbott Dr, Suite 400

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Shiloh Sears, Therapist

Shiloh Sears, LPC, helps children, teens, young adults, and families across South Carolina build practical skills to navigate life’s challenges and improve emotional well-being. At LifeStance Health, she provides compassionate, evidence-based therapy for concerns such as anxiety, ADHD, and depression, while supporting families through difficult transitions and everyday stressors. Shiloh’s approach emphasizes collaboration, helping clients better understand their thoughts, emotions, and behaviors while developing tools that promote resilience and long-term mental health. Shiloh is especially passionate about working with young people and families experiencing childhood behavior challenges, school avoidance, and trauma-related concerns. She understands that early emotional and behavioral struggles can affect relationships, confidence, and academic success. Through a supportive and developmentally informed approach, she partners with parents and caregivers to create a stable foundation for growth while helping children and adolescents learn effective coping strategies and emotional regulation skills. Her clinical work also includes support for individuals navigating ADHD, anxiety, and depression, along with additional areas of focus. Shiloh utilizes evidence-based approaches including Cognitive Behavioral Therapy (CBT), Acceptance and Commitment Therapy, and Parent Child Interaction Therapy, tailoring treatment to each client’s needs. She works with diverse populations including individuals connected to adoption or foster care, people with developmental disabilities, members of the LGBTQ+ community, and women. Outside of her clinical work, Shiloh enjoys spending time with her family, playing piano, kayaking, reading, and attending live music events.

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Columbia, SC

115 Atrium Way, Suite 221

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Tasha Cowan, Therapist

Tasha Cowan, LPC, helps adolescents, teens, and adults across South Carolina navigate anxiety, depression, trauma, and life’s most overwhelming transitions with compassion and clinical skill. At LifeStance Health, she provides individual therapy designed to build trust, strengthen emotional resilience, and create meaningful, lasting change. Her approach is grounded in the belief that feeling heard and understood is the foundation for healing, and she works collaboratively with clients to develop practical strategies that support growth both inside and outside of sessions. Tasha is especially passionate about treating anxiety, depression, and PTSD/trauma. She understands how persistent worry, low mood, or unresolved traumatic experiences can impact relationships, school, work, and self-esteem. Using evidence-based treatments such as Cognitive Behavioral Therapy (CBT), Dialectical Behavior Therapy (DBT), and EMDR, she helps clients regulate intense emotions, reduce self-defeating thought patterns, and process painful memories in a safe, structured way. Her work is particularly effective for those struggling with emotion regulation and self-harming behaviors, offering skills that foster stability and self-confidence. She provides therapy for teens (11–17), young adults, adults, and seniors, and has experience supporting individuals within the LGBTQ+ community, women, and those connected to adoption or foster care. Tasha creates an affirming, inclusive space where clients can explore identity, relationships, grief, and other personal challenges without judgment. While her primary focus includes anxiety, depression, and trauma-related concerns, she also offers support for additional mental health needs. Since beginning her practice in 2021, Tasha has been committed to ongoing professional growth and delivering high-quality mental health care. Outside of her clinical work, she enjoys reading, swimming, listening to music, traveling, and spending time with her dogs and family.

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Cayce, SC

440 Knox Abbott Dr, Suite 400

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Trent Peeler, Therapist

Trent Peeler, LPC, helps individuals across South Carolina navigate life’s challenges with clarity, resilience, and a renewed sense of purpose. He provides individualized therapy for teens and adults, creating a supportive space where clients can address concerns such as anxiety, trauma, and ADHD while building practical coping skills that translate into everyday life. Trent is particularly passionate about helping clients work through complex emotional and behavioral patterns that impact their well-being. He integrates evidence-based approaches like Cognitive Behavioral Therapy (CBT) and EMDR alongside faith-based counseling to support healing on both a psychological and personal level. His approach is thoughtful and adaptable, meeting each person where they are while guiding meaningful progress. He has experience supporting first responders, military members and veterans, and individuals within the LGBTQ+ community, with sensitivity to the unique pressures and experiences these populations may face. In addition to his primary specialties, Trent offers support for a wide range of mental health concerns, tailoring care to each client’s goals and circumstances. Services are offered in Spanish and Arabic to better support diverse communities. Trent works with teens and adults across all life stages, helping clients manage transitions, process difficult experiences, and build healthier patterns for the future. His style is collaborative, grounded, and focused on creating measurable, lasting change. Outside of his clinical work, Trent enjoys reading, traveling, hiking, watching soccer, and spending time with friends and family.

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Cayce, SC

440 Knox Abbott Dr, Suite 400