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Executive Team

Susan Levine
Executive Director

Susan Levine has served since 1994 as executive director of Hospice of the Valley. Over that period the agency has grown from serving 130 patients a day with a $5 million annual budget to caring for 17,000 patients a year with a $141 million annual budget.

Levine is a passionate advocate of community-based end-of-life care. Currently she serves as chair of Hospice Association of America and is a member of the National Association of Home Care and Hospice Board. She also serves on the Health Care Policy Advisory Council of Harvard Medical School.

Levine has a bachelor’s degree in educational psychology. Her early career focused on elementary school teaching and retail management for Saks Fifth Avenue. At midlife she obtained her nursing degree, worked as a hospital staff nurse, then managed a home health care company. She is among "Arizona's 48 Most Intriguing Women," a diverse group selected for the Arizona Centennial Legacy Project by the Arizona Historical Society and the Arizona Community Foundation. Awards include ASU Center for Non-Profit Leadership Executive Director of the Year; NAHC Lifetime Achievement Award; ASU College of Nursing Distinguished Person’s Award, and Anti-Defamation League Leader of Distinction Award.

Debbie Shumway, CPA
Senior Vice President

Debbie Shumway is senior vice president of Hospice of the Valley, responsible for finance and support services. She joined the agency as finance director in 1994.

In 2009, Shumway was named Chief Financial Officer of the Year in the nonprofit category by the Arizona chapter of Financial Executives International. She was cited for her leadership in growing Hospice of the Valley and her versatility in managing various aspects of the agency that extend beyond financial issues. Shumway also oversees information technology, fund development, volunteers, bereavement, quality/compliance and thrift store outlets that support patient care.

Shumway graduated from the University of Arizona with a bachelor of science degree in business administration, majoring in accounting and finance. She is a certified public accountant. Before joining Hospice of the Valley, she worked six years as senior accountant and auditor for Arthur Anderson & Co.

She serves on the Health Care Benefit Trust Board for the City of Phoenix.

David Butler, MD
Executive Medical Director

Dr. David Butler is executive medical director, overseeing more than 50 physicians and nurse practitioners at Hospice of the Valley. He completed his combined Internal Medicine and Pediatrics residency at Phoenix Children’s Hospital and Good Samaritan Hospital. Dr. Butler joined Hospice of the Valley in 2006; he is board certified in Internal Medicine, Pediatrics and Hospice and Palliative Medicine. He is a medical director at Ryan House, a pediatric respite inpatient home for children with life-threatening illnesses that is operated in partnership with Hospice of the Valley. He received his MD from the Medical College of Wisconsin, Milwaukee.  

Gillian Hamilton, MD, PhD
Vice President, Education/Innovation

Dr. Gillian Hamilton serves as vice president education/innovation. She created innovative programs that go beyond the standard level of hospice care, such as the Dementia, Pulmonary, Congestive Heart Failure, Pet Connections, and Mindfulness Training programs. She oversees medical education in palliative care for Maricopa County’s health-care providers.

She is listed in “Best Docs of America” and Phoenix magazine’s “Top Docs.” Dr. Hamilton joined Hospice of the Valley in 1996. She is board certified in Internal Medicine, Geriatrics, Hospice and Palliative Medicine. She received her MD from University of Arizona, Tucson, and her doctorate in physiological and clinical psychology from the University of Florida.

Sabrina Hoffman
Vice President Human Resources

Sabrina Hoffman is vice president of human resources. Her areas of responsibility include recruitment and staffing, compensation and benefits, performance management, employee relations, wellness and safety.

Hoffman joined Hospice of the Valley in 1994 to create the agency’s first Human Resource Department. Since then she has overseen the creation of state-of-the-art Human Resource programs and systems that have supported the agency’s strategic initiatives and goals.

Prior to joining Hospice of the Valley, Hoffman worked for Olsten Kimberly Quality Care for five years with a focus on Human Resources and Operations. Hoffman graduated from Ottawa University with a bachelor of art degree in Human Resource Management. She is a Senior Professional in Human Resources (SPHR) by the Society for Human Resource Management.