(602) 530-6900  |  Location

Amy Chengalaram with Asian Patient Pura Agudo

We care about you.

Our people are what make the Dementia Care and Education Campus truly special. Our skilled and credentialed staff have a passion for excellent dementia care and are honored to serve patients and families on their journey. Our teams of compassionate caregivers are dedicated to enhancing quality of life by sharing vital resources, teaching new ways to connect and providing individualized care that engages the senses.

Meet our Leadership Team
Medical Director Dr. Gillian Hamilton
Gillian Hamilton, M.D., Ph.D.

Medical Director, Supportive Care for Dementia

Dr. Hamilton received board certification in internal medicine, geriatrics and palliative medicine. She is Clinical Associate Professor at the University of Arizona College of Medicine, is Professor of Practice at ASU, oversees HOV’s Supportive Care for Dementia program; and teaches Mindfulness, among other projects. Dr. Hamilton was listed for over 10 years in Phoenix Magazine’s “Best Docs of Phoenix”, and is the recipient of numerous awards, including National Library of Congress’s Local Legend award.

Matthew Skinner, Medical Director
Matthew Skinner, MD

Medical Director

A Phoenix native, Matt is board certified in internal medicine and geriatric medicine.  He did his training with Maricopa Medical Center and Banner Boswell’s Geriatric Fellowship program. As medical director of our Gardiner Home inpatient unit specializing in dementia care, he is passionate about improving quality of life for families living with the condition. 

Dementia Program Director Maribeth Gallagher
Maribeth Gallagher, DNP, PMHNP-BC, FAAN

Dementia Program Director

Dr. Maribeth Gallagher is a board-certified Psychiatric Nurse Practitioner with a Doctoral degree in Nursing. She is a Fellow in the American Academy of Nursing and serves as the director of the Dementia Program at Hospice of the Valley. Dr. Gallagher’s commitment to optimizing dementia care was initially inspired by her own experiences as a family caregiver, sharing the journey with her loved one with dementia from diagnosis to death.

Kristin Pierson, Education Director
Kristen Pierson, BA

Education Director

Kristen Pierson manages our Supportive Care for Dementia (SCD) program, providing palliative care to thousands of Arizona families who are living with dementia. She also coordinates dementia education in our community to improve wellness and reduce stress among employees and caregivers in the workplace.

Holly Abbott profile photo
Holly Abbott, RN

Director of Operations

Holly has been with Hospice of the Valley for over 10 years, starting as a CNA and later serving as a nurse at our Lund Home inpatient unit. She was a Home Care team leader for five years before being appointed to her current role.



Michelle Bales, MSW
Michelle Bales, MSW

Adult Day and Intergenerational Program Manager 

Michelle has a passion for creating “meaningful moments” for people living with dementia-- ensuring that laughter and fun are top priorities. Her dedication helps caregivers gain the skills and knowledge to provide exceptional care.


Bessie Medigovich, RN, BSN
Bessie Medigovich, RN, BSN

Campus Team Leader of Assisted Living and Inpatient Care Home

Bessie has received numerous awards for her skill and compassion, and will tell you “her heart guided her to nursing.” She is thrilled to use her experience and passion to serve families living with dementia.


Belinda Ordonez
Belinda Ordonez, MSN, APRN, FNP-BC, CHPN

Dementia Nurse Practitioner

Belinda Ordonez is a board certified family nurse practitioner providing hospice and palliative care since 2000. Combining her love for geriatrics and dementia care, she helps families find joy and connection along their dementia journey.