Addiction therapists & psychiatrists in Gaithersburg, MD

I am a board-certified Nurse Practitioner with training in both primary care and psychiatric mental health. I have extensive experience providing care in community, correctional, and integrated care settings, where I work with individuals managing anxiety, depression, mood disorders, trauma-related conditions, and other mental health concerns.

I strive to create a supportive, nonjudgmental space where clients feel heard and respected. I value thoughtful assessment, clear communication, and collaborative decision-making to help clients better understand their symptoms and treatment options. My goal is to partner with each client to develop a personalized care plan that supports both mental and overall well-being.

Hello, and welcome. My name is Darius Brittingham, and I am a mental health and substance abuse therapist with a Master’s degree in Rehabilitation Counseling. I am passionate about helping individuals navigate life’s challenges while building the skills needed to create meaningful and lasting change. My professional background includes working with individuals experiencing mental health concerns, substance use challenges, stress, anxiety, and life transitions. I strive to create a supportive, respectful, and non-judgmental environment where clients feel comfortable exploring their thoughts, emotions, and goals.

Dr. Troy A. Waller, a Licensed Professional Counselor with more than two decades of experience, provides services across Washington, D.C., Maryland, and Virginia. He focuses on trauma recovery and offers consultation to government agencies and hospital regarding stress, anxiety, and mental health concerns.

With 14 years as a psychiatric registered nurse before becoming a practitioner, I bring both clinical expertise and heartfelt understanding to every patient interaction. I strive to create a safe, judgment-free space where you can feel understood and supported. Together, we’ll explore your unique experiences, identify what’s holding you back, and develop strategies to help you move forward with confidence and hope.

Malcolm is a Psychiatric Nurse Practitioner with dual board certification in Family Practice. I am a native New Yorker with over 20 years of healthcare experience. Growing up in New York City, I’m comfortable working with diverse populations. I’ve served clients from various religious, socioeconomic, cultural and sexual orientation backgrounds.

I provide structured, evidence-based psychiatric care for adolescents and adults with anxiety, mood disorders, ADHD, and complex mental health conditions. I specialize in treating individuals who have had limited response to prior treatment and require a more personalized, clinically guided approach. I also have extensive experience supporting individuals with autism spectrum disorder (ASD) and intellectual and developmental disabilities (IDD) in both community and residential settings.

Welcome! I’m Dr. Alysia Sierra, a clinical psychologist with nearly 10 years in private practice. I am also a certified mindfulness meditation teacher. Areas of expertise include anxiety disorders, PTSD & attachment trauma; relationship struggles; perfectionism and codependency; imposter syndrome and burnout; substance use disorders; OCD. I have extensive expertise working with: high achievers, healthcare providers, first responders, athletes/performing artists, parents who feel stuck.

I am a board certified psychiatric nurse practitioner with a primary care background. I graduated from the University of Maryland School of Nursing. My focus areas are adults and geriatric patients.