Intermountain Centers Executive and Leadership Team

Rose Lopez, the President & Chief Executive Officer at Intermountain Centers, directs the organization's overarching strategy and operational execution. Overseeing all major business units, Lopez ensures the delivery of integrated health care services, including mental health, autism/ABA, substance use treatment, and supportive housing across Arizona. This leadership role involves fostering partnerships with community stakeholders and driving the mission to serve at-risk individuals and families. By championing evidence-based practices, Rose Lopez guides the organization in supporting vulnerable populations and enhancing their quality of life. The President & Chief Executive Officer also focuses on expanding the organization's reach and impact within the Arizona community, ensuring sustainable growth and continued service provision.

Martha Zhan, the Chief Financial Officer at Intermountain Centers, manages all financial operations and fiscal strategy. Overseeing budgeting, financial planning, and resource allocation, Zhan ensures the financial health and sustainability of the nonprofit healthcare organization. This critical role involves managing grants, optimizing revenue streams from diverse service offerings like mental health and autism/ABA programs, and maintaining compliance with all financial regulations. By implementing robust financial controls, Martha Zhan safeguards the organization's assets and supports its mission to serve at-risk individuals and families across Arizona. The Chief Financial Officer also plays a key part in securing funding and investment to expand services and enhance the quality of life for the community.

Sharon Northern, the Chief Human Resources Officer at Intermountain Centers, leads all human capital management initiatives. Overseeing talent acquisition, employee development, and organizational culture, Northern ensures a skilled and motivated workforce dedicated to providing integrated health care services. This position involves developing and implementing HR strategies that support the organization's mission of serving individuals and families across Arizona with mental health, autism/ABA, substance use treatment, and supportive housing. By fostering a positive and compliant work environment, Sharon Northern attracts and retains top talent essential for delivering high-quality care. The Chief Human Resources Officer also drives initiatives to promote employee well-being and career growth, directly impacting the organization's ability to serve the community effectively.

Lindsey Retterath, the Chief Medical Officer at Intermountain Centers, directs clinical strategy and ensures the highest standards of patient care. Overseeing all medical and clinical operations, Retterath champions the integration of evidence-based practices across mental health, autism/ABA, substance use treatment, and supportive housing services. This leadership role involves guiding clinical teams, ensuring regulatory compliance, and driving innovation in treatment modalities to improve outcomes for at-risk individuals and families throughout Arizona. By maintaining clinical excellence, Lindsey Retterath directly supports the organization's commitment to enhancing the quality of life for the community's most vulnerable populations. The Chief Medical Officer also collaborates with other executive leaders to align clinical services with the overall strategic goals of Intermountain Centers.