Dr. Zachary Giesen, D.O. completed his undergraduate studies at Stanford University where he majored in Biology. While at Stanford he earned All-American honors as a member of the varsity Wrestling team.
Zack received his Doctor of Osteopathic Medicine from Western University of Health Sciences COMP-NW where he was on the Deans List all four years. He then moved out east where he completed his Internal Medicine residency and Cardiology fellowships at Dartmouth.
Dr. Zachary Giesen, D.O. completed his undergraduate studies at Stanford University where he majored in Biology. While at Stanford he earned All-American honors as a member of the varsity Wrestling team.
Zack received his Doctor of Osteopathic Medicine from Western University of Health Sciences COMP-NW where he was on the Deans List all four years. He then moved out east where he completed his Internal Medicine residency and Cardiology fellowships at Dartmouth.
The reviews listed below were collected independently of Southern Oregon Cardiology through rater8. Each review represents an authentic and verified patient experience.
He was excellent! Great “bedside manner.” Attentive. Answered all questions completely and confirmed understanding. Not rushed or impatient.
May-2025
He is great. Gave me and my wife all the information we needed. Made me feel good when we met him. Left him with confidence. Gary Howard.
May-2025
Great Doctor! Takes time with you. Explains everything. Very thorough.
Apr-2025
Very pleased with Dr. Giesen.
Apr-2025
The doctor listened to all of my concerns and made certain I understood his responses. I did not feel rushed.
Apr-2025
Really listened to me
Apr-2025
My consultation with Dr. Giesen was much more than I expected. I had never needed a cardiologist before and was nervous but he quickly put me at ease, explained the upcoming tests and discussed a possible medication ( which was initially refused by my insurance but then almost immediately approved). I feel that I am in very good hands now.
Mar-2025
Very nice visit! Dr took plenty of time to explain my condition and prognosis, took an interest in me personally, and respected my medical background.
Mar-2025
Very friendly, understanding . But i did forget to ask about a pacemaker
Feb-2025
My husband was with me and asked me after the appointment if the doctor was always that nice and supportive. I said yes, he is.
Feb-2025
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Medford
520 Medical Center Drive Suite 200 Medford, OR 97504
Dr. Zachary Giesen, D.O. completed his undergraduate studies at Stanford University where he majored in Biology. While at Stanford he earned All-American honors as a member of the varsity Wrestling team. Zack received his Doctor of Osteopathic Medicine from Western University of Health Sciences COMP-NW where he was on the Deans List all four years. He then moved out east where he completed his Internal Medicine residency and Cardiology fellowships at Dartmouth. During his training he received the Resident Excellence in Teaching award. Dr. Giesen specializes in general and invasive cardiology and is board eligible in General Cardiology, Echocardiography, and Nuclear cardiology. He also has an interest in sports cardiology. Zack grew up in Southern Oregon where he attended North Valley High School and is excited to return to the Rogue Valley. When not with patients he is spending time with his wife, who is a Critical Care Physician, and their two very energetic daughters. Together they enjoy running, cycling, snowboarding, and rafting.
He was excellent! Great “bedside manner.” Attentive. Answered all questions completely and confirmed understanding. Not rushed or impatient.
He is great. Gave me and my wife all the information we needed. Made me feel good when we met him. Left him with confidence. Gary Howard.
Great Doctor! Takes time with you. Explains everything. Very thorough.
Very pleased with Dr. Giesen.
The doctor listened to all of my concerns and made certain I understood his responses. I did not feel rushed.
Really listened to me
My consultation with Dr. Giesen was much more than I expected. I had never needed a cardiologist before and was nervous but he quickly put me at ease, explained the upcoming tests and discussed a possible medication ( which was initially refused by my insurance but then almost immediately approved). I feel that I am in very good hands now.
Very nice visit! Dr took plenty of time to explain my condition and prognosis, took an interest in me personally, and respected my medical background.
Very friendly, understanding . But i did forget to ask about a pacemaker
My husband was with me and asked me after the appointment if the doctor was always that nice and supportive. I said yes, he is.