American Board Certified Oral & Maxillofacial Surgeon

Fellow of American Association of Oral & Maxillofacial Surgeons

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425 Oral, Maxillofacial, and Implant Surgery

Oral Surgery in Issaquah, WA

Dr. Ju Yon Sophie Yi, MD, DDS is a Board-Certified Oral & Maxillofacial Surgeon, who specializes in the surgical needs of the oral and maxillofacial region, including wisdom teeth extractions with IV sedation, dental implant placements, bone grafting, oral biopsy and pathology, impacted canine surgical exposure and bonding, pre-prosthetic surgery, and jaw surgery.

Our office is proudly certified by the Washington State Office of Minority and Women's Business Enterprises (OMWBE).


What is 425 Oral, Maxillofacial, and Implant Surgery? We are an Oral Surgery office, who perform oral surgery Procedures with specific goals in mind as stated in our Mission Statement.


Why go to an Oral & Maxillofacial Surgeon? Because we went to 4 to 6 years of extra intense surgical training to call ourselves "Surgeons," who actually perform surgery everyday. We are trained in anesthesia, general surgery and medicine. So it makes sense to see an Oral & Maxillofacial Surgeon for your oral surgery care, right?

Why choose your office? Because we're prepared to exceed your expectations and your ideas about "Oral Surgery."

Why the name 425? To serve the community of the Great Northwest! We couldn't think of a better name.

When do you open? Hours of operation are Mondays 9AM - 12PM, Tuesdays to Thursdays 9AM - 4PM, and Fridays 7AM - 12PM.

Where is your office? Right next to the Issaquah Post Office, near I-90. Click on Contact Us for more details.

Who is the doctor? Dr. Ju Yon Sophie Yi - pronounced YEE. She's been an Oral & Maxillofacial Surgeon since 2012. She definitely beat the odds by being the first to go to a University in her family, receiving two Doctorate Degrees, and finishing one of the toughest Residency in the Nation under the mentorship of World Renowned Surgeons, while also giving birth to her first child in Medical School. She is one of the very few Female Oral Surgeon in the State of Washington with Dual Doctorate Degrees, and WA State Dental and Medical Licenses.  She prides herself in being able to apply intricate surgical skills while bringing genuine compassion in her patient care. She also doesn't fit the stereotypical mold of a Surgeon, as she's only 5'4" tall, wears size "small" gloves, and is nowhere near intimidating. Click on Meet the Doctor for more details.

Does she speak fluent English? Yes, and she speaks Korean as well.

Do you accept dental insurance? Yes, and Click on Insurance Information.

Nurse And Patient
Nurse Making Notes
Model's Lower Face



I had my wisdom teeth removed by Dr. Yi and I highly recommend her. Dr. Yi was very personable and took time to answer all my questions and make sure I was comfortable through the whole experience.



If you had a great experience at our office, please review us by clicking the link below. This will help us spread the word about what we're all about! Thank you in advance for your time and trusting us with your care!



Please use this form for general information purposes only.

DO NOT send personal health information through this form. Specific patient care must be addressed during your appointment.

O: 425-961-9600

F:  425-961-9601

E: info@425oralsurgery.com

425 Oral, Maxillofacial, and Implant Surgery

Ju Yon Sophie Yi, MD, DDS, PLLC








9AM - 12PM**

9AM - 4PM

9AM - 4PM

9AM - 4PM

7AM - 12PM

By Appointment Only


450 NW Gilman Blvd, Suite 101

Issaquah, WA 98027


425-961-9601 (fax)


**Except major holidays.

Serving the Greater Seattle, Washington Area, including Issaquah, Bellevue, Mercer Island, Newcastle, Sammamish, Redmond, Renton, Covington, Maple Valley, Snoqualmie, North Bend, Fall City, Cle Elum, Ellensburg, Yakima, and beyond.

©2019 425 Oral, Maxillofacial, and Implant Surgery. All right reserved.