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Executive Team

Deb Shumway, Executive Director
Debbie Shumway, CPA
Executive Director

Debbie Shumway is executive director of Hospice of the Valley.

She assumed the top position this year after serving the agency since 1994. Over the years Shumway oversaw all aspects of agency operations, including clinical care, finance, fund development, volunteers, bereavement, information services and the thrift stores.

During that period, the agency grew from serving 140 patients a day with 120 staff members and a $5 million budget to supporting 3,000 patients a day with 1,300 staff and a $130 million budget.

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 for her management versatility.

Shumway graduated from the University of Arizona with a Bachelor of Science degree in business administration, majoring in accounting and finance. Her introduction to hospice began as a young adult, when she accompanied her mother, a patient care volunteer for Hospice of the Valley.

Before joining the agency, Shumway worked as senior accountant and auditor for Arthur Anderson & Co.

“My goals for HOV are to continue to maintain the beautiful mission that has never changed since our origination—to provide comfort and dignity as life nears its end,” Shumway said. “At the same time, in this dynamic time in healthcare, we are excited to develop new programs and services to help providers support their patients. We look forward to continued collaboration with our community healthcare partners.”

Rachel Behrendt
Rachel Behrendt, DNP
Senior Vice President, Operations

Rachel Behrendt is senior vice president, operations. She oversees clinical operations—including home care, inpatient services, admissions, Arizona Palliative Home Care—and clinical services, including quality and compliance, the resource team, bereavement and education.

Behrendt’s nursing career spans more than 25 years in a variety of roles, including staff nurse, nurse educator, clinical nurse specialist, VP of nursing and chief nursing officer.  Her clinical background is primarily oncology and palliative care.

She joined Hospice of the Valley in 2016. “I know firsthand what a difference hospice makes for families, and I am excited to be working on a team that makes that kind of difference every day,” she said. 

Behrendt received her doctorate in nursing practice from University of Medicine and Dentistry of New Jersey, Newark, New Jersey. Other degrees include: master of science in nursing, nursing education, Monmouth University, West Long Branch, NJ; bachelor of arts, English literature, Douglass College, Rutgers University, New Brunswick, NJ; and associate’s degree in nursing, Muhlenberg School of Nursing, Union County College, Cranford, NJ.

Behrendt has advanced certification in both oncology and nursing leadership.  In addition, she is passionate about volunteerism and serves on the board of several organizations including Hope for Trauma, the American Organization of Nurse Executives, and the Arizona Health Education Centers (AHEC).

Dr. Ned Stolzberg, Executive Medical Director
Ned Stolzberg, MD
Executive Medical Director

Ned Stolzberg, MD, is Executive Medical Director of Hospice of the Valley, overseeing the agency’s physicians and nurse practitioners. He joined HOV as a medical director in 2007. He has worked as both a team medical director and as a palliative care consultant in the hospital setting. 

After growing up in the Boston area, Dr. Stolzberg attended the University of Texas, where he received a Bachelor of Arts degree. He went on to graduate from medical school at the University of Massachusetts where he was awarded the Chancellor's Award for Outstanding Medical Student. He did his residency at Phoenix Baptist Hospital.

“During my residency, I was exposed to hospice care and was very impressed with the high quality of the people and the care at Hospice of the Valley,” Dr. Stolzberg said. “Both my parents were HOV patients, and after experiencing the tremendous service the agency provides first hand, I decided that I wanted to make hospice part of my medical practice.”

Dr. Stolzberg is co-founder of Arrowhead Family Care in Glendale.  He is board certified in Family Medicine and Hospice and Palliative Medicine. He was Chief of Staff at Arrowhead Hospital from 2004-2008 and currently serves on the hospital’s Board of Trustees as well as the Ethics Committee. In 2008 he was named a “Top Doc” by Phoenix Magazine.

Joyce Bulman, Chief Operations Officer
Joyce Bulman, RN, MBA
Chief Operations Officer

Joyce Bulman is chief operations officer. She oversees centralized operations, which includes quality/compliance and education.

Bulman joined HOV in 2012 as director of clinical services for the East Office, and in 2013 was appointed director of quality and compliance. She comes from North Dakota, where she served as director of hospice and home care for Altru Hospital.

A registered nurse, Bulman began her career in Pediatrics/Neonatal Intensive Care. In 2007, she accepted an administrative position with home care and hospice and found her passion. She attained a master’s of business administration in healthcare from the University of Mary in North Dakota. Over the next five years, Bulman worked within the hospice and home health sector overseeing all areas of clinical and operational needs.

In 2012, Bulman became a certified hospice and palliative care administrator, a specialty certification awarded by the Hospice and Palliative Credentialing Center.   

Bulman’s commitment to end-of-life care is inspired by the impact hospice has on patients and their families. “I am blessed to be able to know that every single day, the work that we are doing is making a difference,” she said.

Lin Sue Cooney
Director of Community Engagement

Lin Sue Cooney is director of community engagement. She joined Hospice of the Valley in 2015 after more than 30 years as a primary news anchor at 12 News/KPNX. She oversees community-facing departments including volunteers, fund development, business development, communications and creative services.

Honored  as the Valley’s “Best Anchor” by the Phoenix chapter of American Women in Radio and Television, Lin Sue has also won numerous awards for news reporting and community service, including the prestigious Edward R. Murrow Award and nine Rocky Mountain Emmys. She championed “Buddy Check 12,” a major breast health awareness program. 

Lin Sue graduated cum laude with a bachelor’s degree in English and political science from Williamette University in Oregon. She holds a master’s degree in journalism from the prestigious Medill School of Journalism at Northwestern University. 

Cooney also volunteers for the Pet Connections program, along with her standard poodle Max.

Her service is inspired by the compassionate care her father-in-law received from Hospice of the Valley many years ago. She is honored to help serve other Arizona families.

To arrange a speaking engagement, contact Lin Sue at lcooney@hov.org.

Gillian Hamilton, MD, PhD
Administrative Medical Director

Dr. Gillian Hamilton serves as administrative medical director. 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 of Human Resources
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.