Welcome to Marshall Orthodontics!

**Office Temporarily Closed due to COVID-19 (updated 3/25/2020) ***************

For the health of our patients and community and in accordance with guidelines from the California Dental Association and American Dental Association, we are temporarily closing the office for at least through April 5th, 2020. 

If you are an existing patient of our practice and would like to contact us or leave a message, please e-mail us at [email protected]  .  If you have an urgent need, please call and listen carefully to the message.  If you did not receive the email broadcast from our office regarding the COVID-19 situation, please email us your preferred email address to be added for timely updates. 

We look forward to seeing you again soon and will keep you posted with updates. 


Yo Imai-Marshall, DDS, MSD (Marshall Orthodontics)


Marshall Orthodontics is a quality-oriented private practice of San Diego orthodontist, Dr. Yo Imai-Marshall. Our address is 3855 Avocado Boulevard, Suite 200, La Mesa, CA.  We are located just off of the 94 freeway on Avocado Blvd., in the Rancho San Diego area of east county.  We primarily serve the east county and the San Diego communities of La Mesa, El Cajon, Rancho San Diego, Jamul, Casa De Oro, Santee, Lemon Grove, and Spring Valley.  Dr. Marshall and her team can be reached at 619-670-4018.

Marshall Orthodontics is a small warm family practice with a homey feel.  Because we are a small practice, we get to know each and every one of our patients (and the rest of the brood!), as they become part of our orthodontic family.  We enjoy being a part of our patients’ lives!  We provide orthodontic services for children, adolescents and adults of all ages. 

Dr. Marshall is the sole orthodontist and owner of Marshall Orthodontics.  As a specialist in orthodontics and dentofacial orthopedics, she is highly trained and most qualified to serve all of your orthodontic needs, whether it be straightening your teeth, correcting your bite, restoring a beautiful smile, or any combination of the above.  Dr. Marshall is analytical, detail oriented, and dedicated to clinical excellence.  She works with various orthodontic appliances, such as metal braces, ceramic braces (white braces), Invisalign, and retainers.  In addition, due to her extensive training, she is able to do complex orthodontic cases involving TADs (temporary anchorage devices) and orthognathic surgery (jaw surgery).  

Dr. Marshall and her team are committed to providing you with the highest standard of patient care in a friendly caring environment.  Serving you is our privilege and our goal is to deliver a beautiful healthy smile, along with a positive enjoyable experience throughout your treatment.  

Marshall Orthodontics provides complementary screening exams to new patients.  We offer affordable orthodontic care for the entire family with patient-friendly interest FREE financing available.  Most dental insurance plans are accepted. 

Our clinic is open until 6:30pm on select days for our patients’ scheduling convenience. 

Thank you for visiting our website!  Please feel free to e-mail or call us at 619-670-4018 with any questions.  We hope to see you soon!