Clarissa A Castillo, PA Clinical Nurse Specialist - Family Health Medicare: Accepting Medicare Assignments Practice Location: 4004 Beyer Blvd, San Ysidro, CA 92173 Phone: 619-662-4100 Fax: 619-428-7952
Clinical Nurse Specialist: A registered nurse who, through a graduate degree program in nursing, or through a formal post-basic education program or continuing education courses and clinical experience, is expert in a specialty area of nursing practice within one or more of the components of direct patient/client care, consultation, education, research and administration.