About Dr. Gary Chan, DO, PhD

Welcome to the practice of Dr. Gary Chan, DO, PhD, an experienced cardiologist serving Sioux City, Iowa. We are committed to providing compassionate, evidence-based cardiovascular care with a focus on prevention, early detection, and personalized treatment plans.

Medical Disclaimer: The information on this website is for general informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.

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★★★★★

Excellent doctor. He really listens and takes time to explain things to you. I have been very impressed with how he has taken care of my family member.

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