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Our Physicians

Maria Avilez, MD

Stanley E. Robinson, MD

Gregory Bode, DO

Mark Whitaker, DO

José Parker, MD

Helen Zhao, MD

Wendell Phillips, DO

Cathryn M. Echeverria, FNP


Maria Avilez, MD

Maria Avilez, MD

Joined John C. Lincoln: November 1, 2012.

Degree: MD, University of Iowa School of Medicine, Iowa City, Iowa, 1997.

Residency: Maricopa Integrated Health System, Phoenix, Ariz., 2000.

Clinical interests: Family; including pediatric, adolescence, women's care and adult medicine.

Philosophy of care: "Understanding and caring for a person as an individual, assisting with their health and wellbeing."

Languages spoken: English and some Spanish.

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Gregory Bode, DO

Gregory Bode, DO

Dr. Bode obtained his medical degree from Kirksville College of Osteopathic Medicine, Missouri, in 1998. He completed his internship and residency at Meadville, Pennsylvania Medical Center.

Dr. Bode has served both as an emergency room physician and a private practice family physician. He has taught at Midwestern University lecturing and training medical students in the third and fourth years of clinical medicine. Dr. Bode speaks on several health topics including depression, fibromyalgia, men's health and cardiovascular disease and prevention.

Dr. Bode is board certified by the American Board of Family Practice. His professional memberships include American Academy of Family Practice, American Medical Association, and American Osteopathic Association.

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José Parker, MD

José Parker, MD

Dr. Parker has practiced family medicine for nearly 20 years. He is also a registered pharmacist.

He received his undergraduate degree in pharmacy in 1979 and his medical degree in 1983, both from the University of Arizona. After graduating, he completed a three-year residency in family practice.

Dr. Parker spent seven years as the assistant director of a hospital family practice residency program and has also cared for patients in urgent care and trauma facilities. He speaks Spanish fluently.

Dr. Parker is board certified by the American Board of Family Practice. His professional memberships include American Academy of Family Practice, Arizona Medical Association, Arizona Pharmacy Association and Arizona Academy of Family Practice.

Dr. Parker is on staff at several Valley hospitals, including John C. Lincoln Deer Valley Hospital.

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Wendell Phillips, DO

Wendell Phillips, DO

Dr. Phillips has practiced family medicine for over 20 years. He received his medical degree from Texas College of Osteopathic Medicine in 1985 and completed his residency in general surgery at Phoenix General Hospital.

Dr. Phillips is board certified by the American College of Osteopathic Family Physicians. He is chairman of the Department of Family Practice and medical director of transitional care at John C. Lincoln Deer Valley Hospital. He is also a member of the Board of Directors and the House of Delegates of the Arizona Osteopathic Medical Association.

Dr. Phillips is on staff at several Valley hospitals, including John C. Lincoln Deer Valley Hospital.

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Stanley E. Robinson, MD

Stanley E. Robinson, MD

Dr. Robinson completed his internship and residency in family practice in 1985 at Good Samaritan Hospital Phoenix, AZ. He is a diplomat of the American Board of Family Practice.

Dr. Robinson has been licensed and practicing medicine in Arizona since 1984. He recently joined the staff of Deer Valley Family Practice and welcomes new patients.

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Mark Whitaker, DO

Mark Whitaker, DO

Dr. Whitaker received his medical degree from Texas College of Osteopathic Medicine, Fort Worth, Texas, graduating with honors. He completed his internship and residency at Phoenix General Hospital.

Dr. Whitaker has been practicing family medicine in Arizona since 1989. His professional affiliations include American Osteopathic Association and Arizona Osteopathic Medical Association.

Dr. Whitaker is on staff at John C. Lincoln Deer Valley Hospital.

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Helen Zhao, MD

Helen Zhao, MD

Dr. Zhao is a native of China and received her medical degree from Shanghai Medical University in 1990. She completed her general surgery residency at Jiangyin Hospital at the Nantong Medical College in China and later pursued Ph.D. studies in toxicology at North Carolina State University. She also completed family practice residencies at Rush-Copley Medical Center in Aurora, Illinois and Shands Jacksonville at the University of Florida.

Dr. Zhao served as a family practice physician in Lakeland, Florida before relocating to Phoenix in 2002.

Dr. Zhao is a member of the American Academy of Family Practice and is certified by the Educational Commission for Foreign Medical Graduates. She is on staff at John C. Lincoln Deer Valley Hospital. Dr. Zhao is fluent in Mandarin.

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Cathryn M. Echeverria, FNP

Cathryn M. Echeverria MSN, FNP

Ms. Echeverria earned her Master of Science degree from the College of Nursing at Arizona State University with a specialty of family practice. She is board certified as a Family Nurse Practitioner from the American Academy of Nurse Practitioners.

Ms. Echeverria is a member of the American Nurses Association, the American Academy of Nurse Practitioners and the Honor Society of Nursing, Sigma Theta Tau International.

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