Find In-Network Beacon Therapists, Psychiatrists or Psychologists in Maryland

5550 Friendship Blvd, Suite 590

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Dr. Thomas Sixbey, Psychiatrist

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Millersville , MD

8258 Veterans Highway, Suite 13

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Louis Woolard, Therapist

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Crofton , MD

1662 Village Green, Suite 100

Gambrills , MD

2410 Evergreen Road, Suite 104

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Antonia Tsutsumi, Therapist

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Crofton , MD

1662 Village Green, Suite 100

Gambrills , MD

2410 Evergreen Road, Suite 104

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Kenneth Gilstein, Psychologist

Kenneth W. Gilstein, Ph.D. is a licensed psychologist, with a subspecialty in neuropsychology, and an expertise in mild Traumatic Brain Injuries. He graduated from Cornell University, with a major in neurobiology and behavior, and obtained a Ph.D. from Utah State University, majoring in Professional Scientific Psychology (a combination of clinical, counseling and school psychology). In 2003 he received an award from the Connecticut Psychological Association for ?Distinguished Contribution to the Science of Psychology? for his work in mild traumatic brain injury. Dr. Gilstein has had over 40 years of experience working with children, adolescents, adults, families and couples, both doing therapy and psychological evaluations, including ADHD and learning disabilities. He also specializes in family and marital therapy. During the last 25 years, Dr. Gilstein has spent a great deal of his professional life evaluating and treating individuals with mild Traumatic Brain Injuries and Sports Concussions. He has studied, and done research, with the University of Pittsburgh Medical Center's Sports Concussion Program, and with some of the leading professionals in the field of mild Traumatic Brain Injury. This has led Dr. Gilstein to be involved in litigation, doing numerous depositions and court appearances. Dr. Gilstein has presented workshops in mild Traumatic Brain Injuries and Sports Concussions in various states, and internationally. Before coming to Spectrum, Dr. Gilstein worked as a clinical psychologist and psychological examiner at the Mokihana Program on Kauai, HI. The Mokihana Program is unique in that clinical psychologists are placed at specific schools, where they have their office, and work directly with the school population. He was involved in doing individual and family therapy, school consultations, and psychological, cognitive, and neuropsychological evaluations with children as young as 2 ½ years of age, adolescents, and their families. At the same time, he kept a part-time private practice in psychotherapy, Disability Evaluations for the state of Hawaii, and neuropsychological evaluations for the V.A. on Kauai, and for the general public of the island. Dr. Gilstein is an avid lacrosse fan, having played lacrosse at Cornell University. Since 1969 he has coached lacrosse at both the college and youth levels. Originally from New York, he has lived in the Bowie area since 2015.

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Crofton , MD

1662 Village Green, Suite 100

Gambrills , MD

2410 Evergreen Road, Suite 104

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Gwendolyn Merchant, Nurse Practitioner

Gwendolyn Merchant, NP, is a dedicated psychiatric nurse practitioner serving individuals across Maryland. With over a decade of experience in healthcare, she is passionate about providing compassionate, evidence-based mental health care. She offers individualized medication management for adolescents, adults, and older adults, working collaboratively with her patients to develop personalized treatment plans that support their overall well-being. Gwendolyn specializes in treating anxiety, depression, and bipolar disorder, among other mental health conditions. She has a particular interest in working with individuals navigating ADHD, PTSD/trauma, and sleep disorders. Understanding the complex interplay between physical and mental health, she integrates a holistic approach to care, ensuring that both emotional and physiological factors are considered in treatment. Her goal is to empower her patients with the education and tools they need to manage their mental health effectively. She is especially passionate about supporting individuals experiencing postpartum depression and anxiety, as well as those dealing with obsessive-compulsive disorder and women’s mental health concerns. She provides a safe, nonjudgmental space for clients to explore their challenges while offering practical strategies for symptom management and recovery. In addition to her work with the general population, Gwendolyn has extensive experience supporting individuals with autism spectrum disorders, first responders, and LGBTQ+ individuals. Beyond her professional life, Gwendolyn enjoys cooking and trying new recipes, attending brunch on Sundays, and exploring different cultures through travel. She also loves dancing, attending comedy shows, festivals, concerts, and theater performances.

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Crofton , MD

1662 Village Green, Suite 100

Gambrills , MD

2410 Evergreen Road, Suite 104

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Rashidat Akinsanya, Nurse Practitioner

Rashidat Akinsanya, PMHNP, is dedicated to helping adolescents, adults, and seniors in Maryland manage and overcome mental health challenges through thoughtful, individualized medication management. She combines clinical precision with deep empathy to support patients as they work toward emotional stability, improved daily functioning, and overall wellness. Rashidat treats a range of mental health concerns, with a focus on evidence-based psychopharmacological care for individuals aged 15 and up. At LifeStance Health, Rashidat offers specialized care for those navigating conditions such as depression, anxiety, and bipolar disorder. She takes the time to understand each patient’s unique experiences and medical history, working collaboratively to create treatment plans that support long-term mental health goals. Rashidat serves a broad spectrum of individuals, including members of the LGBTQ+ community, veterans, first responders, and individuals with developmental disabilities or autism spectrum disorders. Rashidat is especially passionate about supporting patients during major life transitions and helping them manage the emotional weight of grief, medical conditions, or postpartum depression and anxiety. She also works with individuals coping with trauma, school avoidance, hoarding behaviors, and health-related psychological issues, offering compassionate, tailored support to help them regain control and find a path forward. Outside of her clinical work, Rashidat enjoys reading, attending church with her family, and spending meaningful time with loved ones—values that inform her warm, person-centered approach to care.

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Baltimore , MD

667-430-2777

2650 Quarry Lake Drive, Suite 200

667-430-2777

Millersville , MD

8258 Veterans Highway, Suite 13

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Gabrielle Bismarck, Therapist

Gabrielle Bismarck, LCPC helps adolescents, teens, and adults in Maryland find clarity, resilience, and connection through compassionate, evidence-based mental health care. At LifeStance Health, she provides individual and family therapy with a focus on understanding the underlying patterns that impact well-being. Gabrielle partners with clients facing challenges such as depression, anxiety, or relational conflict, offering a collaborative space to explore emotions, shift unhelpful thinking, and build skills that support long-term change. Gabrielle specializes in treating anxiety, trauma, and grief, blending Cognitive Behavioral Therapy (CBT), Dialectical Behavior Therapy (DBT), and mindfulness-based interventions. Her work supports clients in identifying core beliefs, regulating emotions, and improving relationships. Gabrielle also integrates family systems work when appropriate to strengthen communication and connection across generations. Her clinical experience spans a wide range of concerns, including ADHD, school avoidance, postpartum anxiety, and women's issues. Gabrielle is especially passionate about helping individuals navigate relational difficulties, attachment wounds, and complex trauma. She works to foster a deeper sense of self-understanding and emotional security by addressing not only symptoms, but the early experiences and internal narratives that shape how clients move through the world. Her approach is depth-oriented, trauma-informed, and grounded in the belief that meaningful healing occurs when clients feel both safe and seen. Gabrielle is affirming of LGBTQ+ individuals and has a particular interest in supporting clients from the adoption and foster care communities. Her warm, open therapeutic style creates a space where clients of all backgrounds can feel respected, empowered, and supported on their journey. Outside of her clinical work, Gabrielle enjoys cooking, baking, watching movies, spending time with her pets, and staying active through exercise. She values balance and creativity as important components of a healthy life.

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Crofton , MD

1662 Village Green, Suite 100

Gambrills , MD

2410 Evergreen Road, Suite 104

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Xiujun Zhao, Psychiatrist

Dr. Xiujun Zhao provides comprehensive and compassionate psychiatric care to adolescents and adults throughout Maryland. With over 15 years of experience, Dr. Zhao helps patients find stability and balance through evidence-based treatment and personalized care. He offers medication management, Transcranial Magnetic Stimulation (TMS), and individual therapy for a wide range of mental health conditions, including depression, anxiety, ADHD, and bipolar disorder. His approach combines medical expertise with a deep respect for each patient’s life experience, supporting recovery and long-term emotional wellness. Dr. Zhao is especially dedicated to helping individuals who have experienced trauma, grief, or post-traumatic stress disorder (PTSD). He integrates biological, psychological, and social perspectives to design individualized treatment plans that address the root causes of distress. By creating a supportive and collaborative environment, Dr. Zhao empowers patients to rebuild confidence, improve daily functioning, and enhance their overall quality of life. In addition to treating mood and anxiety disorders, Dr. Zhao provides specialized support for sleep disorders, postpartum depression and anxiety, and obsessive-compulsive disorder (OCD). His expertise in TMS therapy allows him to offer patients an effective, noninvasive option for treatment-resistant depression. Dr. Zhao also works with veterans and military populations, understanding the unique challenges faced by those who serve. Outside of his clinical work with LifeStance Health, Dr. Zhao enjoys playing sports, officiating basketball, and spending quality time with his family. These activities reflect his belief in the importance of balance, connection, and physical well-being as key components of a healthy life. Dr. Xiujun Zhao proudly serves patients across Maryland through LifeStance.

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Chevy Chase , MD

5550 Friendship Blvd, Suite 590

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Sika Yeme, Nurse Practitioner

Sika Yeme, PMHNP, helps children, adolescents, teens, and adults across Maryland gain stability and improved quality of life through compassionate, evidence-based psychiatric care. As a psychiatric nurse practitioner with LifeStance Health, she provides thoughtful medication management for a wide range of mental health conditions, including ADHD, anxiety, and depression. Sika works with patients ages 6 through older adulthood, creating individualized treatment plans that support both symptom relief and long-term mental wellness for individuals and families throughout Maryland. A particular focus of Sika’s practice is supporting individuals who have recently been discharged from a psychiatric hospital. She understands that the transition from inpatient care back to everyday life can be challenging and often requires close follow-up, medication adjustments, and consistent support. Sika is deeply committed to helping these patients maintain stability, reduce the risk of readmission, and build sustainable coping strategies as they continue their recovery journey. In addition to this work, she treats conditions such as ADHD, anxiety, and cooccurring issues through psychiatric evaluation and medication management. She also has experience supporting individuals facing mood disorders, trauma-related symptoms, and other complex mental health concerns. Sika works with diverse populations, including individuals with developmental disabilities, first responders, and members of the LGBTQ+ community, and she offers care in French and Ewe. Her clinical background includes experience in both mental health and high-acuity medical environments, strengthening her ability to assess complex psychiatric needs. Outside of her clinical work, Sika enjoys reading, cooking, and traveling

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Crofton , MD

1662 Village Green, Suite 100

Gambrills , MD

2410 Evergreen Road, Suite 104