
Our Staff & Providers
Beverly Psychiatric Services
Beverly Psychiatric Services, founded by Doug Nyenke, hires only the most seasoned professional nurse practitioners with a deep passion for holistic psychiatric care. Meet the team below...
Staff & PROVIDERS


Doug Nyenke, PMHNP-BC, FPA, is a highly skilled and board-certified Psychiatric-Mental Health Nurse Practitioner (PMHNP-BC) with a comprehensive nursing background spanning over sixteen years, including critical care, telemetry, and leadership roles. His unique expertise lies in working with children and adolescents dealing with complex childhood disorders such as ADHD, disruptive mood dysregulation disorder, oppositional defiant disorder, anxiety disorders, and autism spectrum disorders.
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He provides a blend of medication management and supportive therapy tailored to his patients' needs. His practice philosophy emphasizes a compassionate, patient-centered approach, underpinned by the latest advancements in psychiatric treatments and evidence-based algorithms.He stands out for his dedication to delivering individualized care, addressing the nuanced needs of children, adolescents, and adults alike.
Doug focuses on treating the whole person, not just their symptoms or diagnosis. This includes addressing emotional, psychological, physical, and social factors that may affect a patient’s mental health. His approach emphasizes collaboration with the patient, personalized treatment plans, and attention to the individual’s unique life circumstances, values, and strengths. He aims to support the patient’s overall well-being, not only to reduce distress but also to incorporate therapy, medication management, lifestyle counseling, and coordination with other healthcare services.


As a Medical Assistant at Beverly Psychiatric Services, Arizbeth plays a key role in supporting clinical and administrative operations within the practice. She is often the first point of contact for patients, helping to create a welcoming and organized environment.
Arizbeth also assists with the coordination of patient schedules, including confirming appointments, managing follow-up reminders, and handling prior authorizations or referrals as needed. She communicates regularly with patients regarding appointment logistics, prescription refill requests, and other administrative concerns, always maintaining a courteous and professional tone.
Overall, Arizbeth’s responsibilities strike a balance between patient-centered service, clinical support, and administrative excellence, thereby upholding Beverly Psychiatric Services' high standards of care.


Arizbeth Mendez, Medical Assistant
