Marsha Desrosiers

Welcome to Blackstone NP In Psychiatry PLLC! I'm Marsha Desrosiers, MSN, APRN, PMHNP-BC, a Board-Certified Psychiatric Mental Health Nurse Practitioner and the founder of Blackstone NP In Psychiatry PLLC. Seeking help can feel overwhelming, but you don't have to navigate it alone. My goal is to provide compassionate, evidence-based psychiatric care in a supportive, judgment-free environment where you feel heard, respected, and actively involved in your treatment. Blackstone provides comprehensive psychiatric evaluation, medication management, and supportive psychotherapy for children, adolescents, adults, and older adults throughout New York State. We work with individuals experiencing concerns such as: Anxiety and panic Depression ADHD Trauma and PTSD Mood disorders Obsessive-compulsive symptoms Stress, burnout, and life transitions Sleep concerns and related mental health conditions Every person has a unique story. Rather than taking a one-size-fits-all approach, we develop individualized treatment plans based on your symptoms, goals, medical history, and personal preferences. Our focus is on helping you better understand what you're experiencing while providing practical tools and treatment options that support your overall well-being. Whether you're seeking answers for the first time, looking for a second opinion, or continuing your mental health journey, we're committed to providing respectful, high-quality care every step of the way. Taking the first step toward better mental health starts with one conversation. We invite you to schedule an appointment today. We look forward to partnering with you on your journey toward improved mental wellness.