Your health, your teeth
and your comfort are
our priority

About us

Mark Germack Endondist in Downtown Seattle

Mark Germack DDS


I was born and raised in Spokane, Washington. Like any young kid I had dreams of being a point guard for the Sonics. At the age of six I figured out that wasn’t going to happen and I set my sights on becoming a dentist.

I made it to Western Washington University and was committed to becoming a dentist. I graduated with a degree in Cellular and Molecular Biology and was then accepted to the dental school at Marquette University. After dental school, I returned to Washington where I owned a successful general practice in Issaquah for 10 years.

Having experienced some episodes of extreme dental pain myself, I could always relate to patients who were in distress. Even though I had a great practice I felt compelled to practice endodontics and surgery. I decided to apply and was accepted into the residency program in Endodontology at the prestigious Oregon Health and Science University.

During that time my research focused on antibiotics and the prescribing habits of dental practitioners. Our research was published in the Journal of Endodontics and was used to help develop the most recent presiding guidelines for dental infections.

We are very excited to be a part of the dental community in downtown Seattle and are sincerely here to be a resource for our patients and referring providers.

Traditional root canal therapy can be stressful and overwhelming.  I want to change that.

Dr. Maureen Swift


With over 25 years of experience in root canal treatment, patients can fully trust Dr. Swift to complete procedures with professionalism, care, and reliability. In addition to performing all diagnostic testing in-house, her ability to treat patients in a one-on-one setting alleviates stress and instills confidence in her endodontic treatments.

Dr. Swift is a doctor of dental surgery with a masters degree in root canal treatment. She places the patient’s comfort and relaxation at the forefront of her work.

Seattle Top Dentist root canal specialist

Our Team

Ranita our awesome dental assistant in our downtown Seattle endodontic office


Registered Dental Assistant

I spent several years caring for children which I loved tremendously. I decided to make a change to dental assisting, because I have always loved teeth and thought it would be a great opportunity to marry two of my passions, being a nurturer and helping patients care for their teeth.

Root canal specialist Seattle


Registered Dental Assistant

Dentistry is always something I have been passionate about and knew from a young age I wanted to make a career of it. I focus on constantly learning about all aspects of my field while helping to educate others on how dentistry contributes to your overall health. I love interacting with my patients and making their appointments as comfortable as possible.

Our awesome dental assistant Rachel in our endodontic office in downtown Seattle.


Registered Dental Assistant

I have always had a passion to give others comfort and support no matter the circumstance. It has been such a rewarding journey working patient care here at CORE with such a great team. As I strive daily to learn and grow in this field, I also want to ensure that each patient that walks through our doors is taken care of and has someone rooting for them.

Root Canal Seattle


Registered Dental Assistant

It is my goal to give the best care and provide comfort to every patient who comes to our practice. I have a drive to continue learning all aspects I can about dentistry and grow as a dental care provider. I graduated from Washington State University with a degree in Neuroscience and plan on applying to dental schools in the near future.

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