About Us
Welcome to Valley Psych Associates, LLC, a locally owned psychiatric practice proudly serving individuals and families throughout Massachusetts.
We offer comprehensive psychiatric evaluations, medication management, and pharmacogenetic testing to support personalized, evidence-based treatment. Appointments are available via secure telehealth throughout Massachusetts or in person at our conveniently located office in Northampton. We provide care for children, adolescents, and adults ages 6 and older.
Our mission is to promote mental health awareness and expand access to high-quality psychiatric care across Massachusetts. While we value the convenience and flexibility of telehealth services, we also recognize the importance of face-to-face connection and are pleased to offer in-person appointments in a welcoming, professional environment.
At Valley Psych Associates, we are committed to delivering compassionate, individualized care grounded in the latest evidence-based practices. We strive to be a trusted partner in your mental health journey—supporting resilience, healing, and renewed hope every step of the way.
How We Can Help

Psychiatric Evaluation
This evaluation encompasses a holistic exploration of who you are. We will review your current concerns and past experiences to form a treatment plan together.

Medication Management
We recognize the potential of psychiatric medications in alleviating symptoms, and we'll partner with you to explore whether they might be beneficial for your needs.

Pharmacogenomic testing
Designed to analyze how your genes may affect medication outcomes. In certain cases this may be helpful to provide personalized medication recommendations.
About Katherine S. Johnson, AGNP, PMHNP
◻️ Double Board-Certified
◻️ Telehealth Across Massachusetts
◻️ In-Person in Northampton
◻️ Ages 6+
◻️ Se Habla Español
Katherine specializes as a Psychiatric Mental Health Nurse Practitioner (PMHNP) and Adult-Geriatric Nurse Practitioner (AGNP). She received her AGNP at the University of Massachusetts Worcester Medical School, and her PMHNP at Rivier University of Nashua, NH.
Katherine brings a holistic approach to her practice. She uses her background in primary care medicine as well as psychiatry to provide compassionate and client-focused care and to meet the needs of each patient as individuals. Katherine’s clinical experience is broad and includes adult medicine, geriatrics, community health, and college health. Katherine provides medication therapy using evidence-based practice, which includes micro-dosing strategies for care tailored to individual needs.

Insurances We Accept












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