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Dr. Sommer Gunia breast surgeon Phoenix.jpg

Sommer R. Gunia, DO, FACOS

Breast Surgeon




9965 N. 95th Street #105
Scottsdale, AZ 85258


Treatment of Benign and Malignant Breast Disease

In-Office Ultrasound

Minimally-Invasive Needle Breast Biopsy

Minimally-Invasive Needle Aspirations of Cysts

Lumpectomy (Hidden Scar Certified)

Excisional Biopsy

Duct Excision

Sentinel Lymph Node Biopsy

Axillary Lymph Node Dissection

Nipple-Sparing Mastectomy

Genetic Testing

Minimally-Invasive Partial Breast Irradiation

Portacath Placement

About Dr. Gunia

Dr. Gunia is one of the few sub-specialty fellowship-trained Breast Surgical Oncologists in Scottsdale and is committed to the evaluation and treatment of breast disease. She is dedicated to bringing the highest level of breast care to the valley by incorporating her expertise in the newest technologies and advancements available for both the diagnosis and treatment of breast cancer. Her training included oncoplastic surgical technique, which combines the principles of cancer removal with optimal cosmetic results.


After earning an undergraduate degree at Arizona State University, she obtained her medical degree from Kansas City University of Medicine and Biosciences. Dr. Gunia completed general surgery training through Ohio University and further specialized in Breast Surgical Oncology at Akron General Medical Center in Ohio. She is also on the board for Check for a Lump, a local non-profit that provides free breast health education, mammograms, testing, and direct assistance to breast cancer patients.

Dr. Gunia enjoys playing cards, country line dancing, relaxing by the pool with a good book, traveling, attending concerts, and spending time with her husband, Steve, their two tabby cats, and their two miniature dachshunds.

"One of my most important goals is to provide my patients with choices. When it comes to decision making involving their treatment, I want them to know they are in the driver’s seat and I am there to present them with the most up-to-date information."
--Dr. Gunia
Dr. Gunia is hands down the best surgeon I’ve ever had. She was extremely personable and caring and explained everything to me in “regular person” speech, not doctor lingo. I will definitely use her again if I have any further issues with my breasts. I HIGHLY recommend her as a surgeon and a breast doctor!

J.B., AZ

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