Kaley O'Neill, NP

KALEY O'NEILL, MSN, FNP-C: COMMONWEALTH MEDICAL PRACTICE 

Kaley O'Neill, MSN, FNP-C, is a board-certified family nurse practitioner serving patients in the Chelmsford, MA area. 

The Chelmsford Clinic of Commonwealth Medical Practice is home to long-standing Primary Care physician and Nephrologist Dr. Sebastian Sepulveda and Primary Care Provider Kaley O’Neill, NP. The clinic provides a full spectrum of services, including annual physicals, preventive screenings, EKGs, flu shots, chronic disease management, and compassionate same-day sick visits. With its convenient location and patient-centered approach, the Chelmsford clinic is committed to delivering accessible, high-quality care that supports the community’s long-term health and well-being. At the clinic, Kaley provides comprehensive primary care services and collaborate with the existing care team to support patient health across the lifespan.

Kaley is a compassionate, motivated provider with a strong background in …adult primary care. She earned her MSN from Regis College and is experienced in managing both acute and chronic conditions, conducting thorough physical examinations, and developing individualized treatment plans. Kaley is also dedicated to patient education, preventive care, and team-based medicine, bringing warmth and clinical expertise to each patient interaction.

Kaley will be available Monday through Friday from 9:00 AM to 4:00 PM and will work alongside Dr. Sebastian Sepulveda to ensure coordinated, high-quality care. To schedule an appointment with Kaley, please call our office.