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About Us

Mieke Rivka Sidorsky, LCSW-C, CST (nee Windecker) uses her compassionate nature and warm personality to improve the quality of life for her clients. Clients often describe Rivka as warm, positive, and hard-working.  She believes in her clients and helps them gain the strength to believe in themselves too.  

Rivka is an AASECT Certified Sex Therapist, a licensed clinical social worker, a Board Certified Supervisor, a published author, a Harvard University research fellowship recipient, and an experienced lecturer. She is a licensed clinical social worker in the state of MD.  She is a professional member of the
American Association of Sex Educators, Counselors, and Therapists, the International Society for the Study of Women's Sexual Health, and the International Society for Sexual Medicine.  

She has been working with women and couples since 2007.  She was personally mentored and was trained in sexual dysfunction and sex therapy from internationally renowned Dr. Laura Berman, Oprah's relationship and sex expert, at the Berman Center in Chicago.  After her time at the Berman Center, she completed seven years of post-graduate training in female sexual dysfunction.  Additionally, she worked at the Center for Intimacy After Cancer Therapy, offering her services to counsel women after surviving breast cancer. She served for three years as a Member of the Board of Directors for In Shifra's Arms, a non-profit organization providing counseling and referrals for women with unplanned pregnancies. 

In addition to her private practice, Rivka is a writer, researcher, and public speaker. She speaks widely on improving intimacy, female function and dysfunction, and on intimacy after cancer at professional conferences, universities, hospitals, and for community events. She is an invited guest to train doctors, nurses, faculty, fellow therapists, and students at the University of Maryland Health Center, The University of Maryland School of Public Health Graduate Program in Marriage in Family Therapy, and at a number of professional conferences such as the National Association of Social Work Clinical Conference.  

She received her Master's Degree in Social Work from the University of Chicago School of Social Service Administration with her Bachelor's Degree in Anthropology from Brandeis University.  She has lived in many countries around the world, particularly in Asia and the Middle East and feels confident in her ability to provide culturally-sensitive therapy to those of different religions and cultures. 

She lives in Silver Spring with her husband and their four children.


Rachel Keller, LCSW-C, CST is passionate about helping individuals and couples overcome challenges in order to experience the intimacy they desire. She has been described by clients as encouraging, knowledgeable, and helpful. Rachel uses a nonjudgmental approach with respect and unconditional positive regard for each client.

Rachel is an AASECT Certified Sex Therapist and is experienced working with clients on a wide variety of issues, including painful sex; desire discrepancies in relationships; sexual aversion, guilt, or anxiety; sexual dissatisfaction; erectile dysfunction; compulsive sexual behaviors; and others. She has specialized knowledge in working with clients from a religious background, in which their faith plays a role in their intimacy and relationships. Rachel also has extensive training in trauma-focused techniques, including Eye Movement Desensitization Reprocessing (EMDR), mindfulness, and somatic attunement.  She is EMDR Certified

Rachel attended Widener University’s nationally respected dual degree Master’s program in social work and human sexuality, where she received comprehensive training on trauma-informed therapy interventions and research, cutting edge sex therapy techniques, and sexuality education. She is a licensed social worker in the state of Maryland and is a professional member of the American Association of Sex Educators, Counselors, and Therapists and the National Association of Social Workers. Rachel is an accomplished writer and speaker. She has published articles and presented at an international conference on the topics of religion and sexuality, sex addiction, and sexual fantasies.


Shana Spier, LGSW listens and works to deeply understand each patient's experience.  She believes that the ability to feel intimately connected to oneself and to others allows us to heal and experience ourselves in ways we never believed were possible.

For over ten years Shana has worked with individuals and couples struggling with anxiety around physical and emotional intimacy and connection, depression, body image, self-esteem and eating disorders, fertility issues, pregnancy and sexual desire, sexual trauma, infidelity, and performance anxiety.

Shana completed the prestigious and rigorous three years of advanced psychodynamic training at the Washington School of Psychiatry and extensive couples training in EFT (Emotionally focused therapy). She has many years of advanced training in identifying and treating intimacy and connection issues in relationships. She has attended numerous trainings in the Gottman Method of Couples Therapy.  She is currently pursuing AASECT sex therapy certification.  Shana has lived in three different countries and worked with clients from multiple cultural and religious backgrounds. She completed her Bachelor and Master’s degree in Conflict Management and Mediation at the Interdisciplinary Center in Herzliya, Israel and her MSW degree at Yeshiva University in New York.  She lives in Silver Spring with her husband and their baby.

Now offering Evening Appointments and Appointments at a Reduced Fee!

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