Helping you live life to the fullest

The specialists at Northern Arizona Healthcare Gastroenterology are board-certified. To qualify for board certification, a physician must complete an additional five to seven years of specialty training in internal medicine and gastroenterology following medical school.

Our team has the knowledge and expertise to provide an accurate diagnosis and personalized treatment plan designed to relieve your symptoms and help you feel better fast.

Andrew Overhiser, MD
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Andrew Overhiser, MD
Placeholder profile image for Minh Tran
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Minh Tran, MD

Physician Assistants

Cameron Allen, PA-C
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Cameron Allen, PA-C
Sandra Kellett, PA-C
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Sandra Kellett, PA-C
Alexandra Scaccia, PA-C
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Alexandra Scaccia, PA-C

Nurse Practitioners

Garyn Grijalva, FNP
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Garyn Grijalva, FNP
Jennifer Quigley, FNP
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Jennifer Quigley, FNP