Expert ERP + Compassionate Perinatal Care for Adults & Families
Dr. Niles Cook, PsyD
Co-Founder & Clinical Director
Dr. Niles Cook is co-founder and clinical director of Red Elm Psychotherapy, where he specializes in the treatment of obsessive-compulsive disorder (OCD) and anxiety disorders using Exposure and Response Prevention (ERP).
His work focuses on helping people break free from cycles of intrusive thoughts, uncertainty, and compulsive behaviors that reinforce OCD over time. He works with a range of OCD presentations, including harm OCD, scrupulosity, relationship OCD, health anxiety, and other forms of obsessional doubt.
Niles takes a collaborative, direct, and compassionate approach to ERP. Treatment is not about eliminating unwanted thoughts or achieving certainty; instead, he helps clients build the skills and confidence to stop organizing their lives around OCD and move toward what matters to them.
As clinical director, Niles brings extensive experience in clinical training and education to Red Elm. He has taught doctoral psychology students, supervised clinicians in Exposure and Response Prevention (ERP), and led a psychology practicum training program at the Portland Anxiety Clinic. He has also developed and taught doctoral-level coursework in basic clinical skills, diagnosis, and treatment planning. This experience informs how he approaches clinical care and the development of Red Elm's clinical model, including how clinicians are trained and supported in providing specialized OCD treatment.
He continues to maintain an active clinical practice, working directly with clients while helping shape the clinical direction of Red Elm.
Where He Works With Clients
Niles provides therapy in Virginia and through secure telehealth in eligible PSYPACT states.
Dr. Erin Cook, PsyD, PMH-C
Co-Founder & Director
Provider certified in perinatal mental health (PMH-C) by Postpartum Support International
Dr. Erin Cook is co-founder and director of Red Elm Psychotherapy, where she leads the practice's growth, operations, and development while maintaining a clinical practice focused on perinatal mental health and OCD.
She has shaped Red Elm from the ground up, overseeing the practice's strategy, systems, partnerships, and day-to-day operations as it grows. Her role spans both the clinical and business sides of the practice, with a particular focus on building a thoughtful, sustainable practice that delivers specialized care without losing the personal connection at the heart of psychotherapy.
Clinically, Erin supports women through the many emotional stages of becoming and being a mother—from trying to conceive and navigating pregnancy to postpartum and the transition into life with a new baby. She has a particular interest in working with women experiencing intrusive thoughts, anxiety, or the grief and uncertainty of pregnancy or infant loss.
Her approach is warm, grounded, and relational, with a strong foundation in evidence-based treatment. Erin specializes in Exposure and Response Prevention (ERP) for Perinatal OCD, adapting the approach to the particular challenges of pregnancy, postpartum, and early parenthood. She also works with perinatal anxiety, high-risk pregnancy, pregnancy and infant loss, birth trauma, and the emotional challenges that can arise during the transition to parenthood.
Where She Works With Clients
Erin provides therapy in Virginia and through secure telehealth in eligible PSYPACT states.