Meet Our Doctors

Raul Zimmerman, MD

Dr. Zimmerman is a graduate of Stanford University School of Medicine. He has been board certified in Family Medicine since 1979. More recently, he was among the very first group of physicians to become board certified in the newly recognized specialty of Hospice and Palliative Medicine. 

Dr. Zimmerman came to central Florida in 1992 to serve on the faculty of the family medicine residency program at Halifax Health. He was Director of that program for 5 years. He continues to teach residents and medical students and is a Clinical Assistant Professor in the Department of Geriatrics with the Florida State University College of Medicine at the school’s Daytona Beach campus. 

Dr. Zimmerman became the first full-time medical director of Halifax Health - Hospice in 2005 where he leads a group of outstanding physicians and nurse practitioners devoted to high quality care for those with advanced illness. In 2009, he started the region’s first inpatient palliative care service which is now seeing 70 to 90 new consultations per month. He continues to serve as the medical director for that innovative service as well.

Dr. Zimmerman has had a longstanding interest in bioethics and has chaired the Bioethics Committee at Halifax Health for over a decade.

Arlen Stauffer, MD

Arlen Stauffer, MD is certified in Hospice and Palliative Medicine, and by the American Board of Family Medicine. He has been practicing medicine in Volusia County for more than 30 years. 

Originally from Indiana, he is a graduate of The Ohio State University with B.A. and M.D degrees, and then completed the Family Medicine residency at Halifax Health in Daytona Beach, serving as Chief Resident during the third year. 

After working for more than 20 years in Emergency Medicine, including 16 years as an Emergency Department Medical Director, he transitioned to the practice of Hospice and Palliative Medicine in 2008, and has been employed full time since then by Halifax Health - Hospice.

He serves as Director of Inpatient Services for Halifax Health - Hospice, and also provides consultations in Palliative Care at the Halifax Health Medical Centers in Daytona Beach and Port Orange. His primary focus is on providing excellent care to those facing serious or life-threatening illness, and to patients nearing end-of-life.

Dr. Stauffer enjoys spending time with family, flying, and leading medical mission teams to underserved parts of the world.

Lyle E. Wadsworth, MD

Dr. Wadsworth is board certified in Internal Medicine, Geriatrics, Hospice and Palliative Medicine.

After graduating from Mainland High School, he earned his Bachelor's from Stetson University and M.D. from Vanderbilt University School of Medicine. He completed his residency in Internal Medicine at Vanderbilt University and University of Florida.

Dr. Wadsworth began his career as an internist in DeLand, July 1978. He has served as Chief of Staff of Fish Memorial Hospital, Medical Education Director for 20 years at Florida Hospital DeLand, in addition to many other appointments. 

He has a passion for educating and sharing his experiences with others, which is evidenced by his commitment to teaching premedical students at Stetson University a four hour class for 20 years, “Premedical Clinical Experience” of which approximately 200 students have passed through. He is a Clinical Assistant Professor of Medicine with Florida State University College of Medicine teaching internal medicine to third year medical students.

In 2005, he joined the team of physicians at Halifax Health - Hospice. Currently, he is responsible for directly overseeing three interdisciplinary teams and serving as the Medical Director at the Care Center in Orange City.

He is married to his high school sweetheart, Gayle, and they have two children and five grandchildren.

Justin Chan, MD

Justin Chan, MD is certified by the American Board of Family Medicine. 

He received his Bachelor's of Science in Microbiology and graduated Cum Laude from University of Minnesota. He obtained his MD from Wayne State University School of Medicine in Detroit, Michigan and completed his residency in Family Medicine at Halifax Health.

Shortly thereafter, he started working at Halifax Health - Hospice. He currently also provides consultations in Palliative Care at Halifax Health Medical Center in Daytona Beach and Port Orange.

In addition to his responsibilities as a physician, he is also an avid writer. His article, "How To Stop Smoking" was published in the Daytona Beach News Journal in conjunction with the Volusia County Medical Society. 

He is committed to educating others about the harmful effects of smoking. As a coordinator for the Tar Wars Program from 2009-2010, he promoted smoking cessation in an effort to imrpove the health of our local community.

John Bunnell, MD

John Bunnell, MD is certified by the American Board of Family Medicine and American Board of Hospice and Palliative Care.

At the University of Florida, he received his Bachelor's of Science in Zoology. He then obtained his MD from the University of South Florida College of Medicine and completed his residency in Family Medicine at Halifax Health.

Prior to joining the Halifax Health - Hospice medical staff, he worked in urgent care and emergency room. Since 2006, he has served as Halifax Health - Hospice Medical Director for the Port Orange Care Center.

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