About Our Team


Dr. Marisa Walker grew up in Adelaide, South Australia, where she attended dental hygiene school and worked with several internationally known practitioners, including Dr. Rory Hume, Dr. Paul Abbott and Dr. Geoffrey Heithersay, whose research she helped organize, write and publish. Dr. Walker later moved to the US to attend school at the University of North Carolina at Chapel Hill, where she received a BS in Biology and a DDS from graduate dental program.

Dr. Walker moved to California in 2008, where she was an associate Dentist in Palo Alto and a clinical instructor at the Foothill College for 5 years.  Dr. Walker is invested in teaching and continues to teach in the dental hygiene clinic as well as lecture in nitrous oxide sedation and oral pathology. She will also be part of the school’s faculty as it brings the first BS in Dental Hygiene to Foothill College here in Northern California.

In 2014, Dr. Walker was honored to be chosen by Dr. Rich Jensen to carry on his practice and to welcome her own patients to the newly designed and built dental facilities on 150 Middlefield Road in Menlo Park.

Dr. Walker is a proud member of the American and Australian Dental Associations, the California Dental Association and the Mid-Peninsula Dental Society. She is on the advisory board of the dental hygiene program at Foothill College and on the New Dentist Welcoming Board of the Mid-Peninsula Dental Society. She is certified in Invisalign Clear Braces.

She is also an invited member of several dental study groups in the area, including the ITI Straumann International Study group and the Mid-Peninsula Interdisciplinary Study group, where she continues to take additional courses to stay abreast of medical findings and dental findings,  new techniques and equipment.

You can read more about Dr. Walker’s background on her LinkedIn page.

About Team

Lauren Wilson

Office Manager, Register Dental Assistant

Lauren was lucky enough to have a great orthodontist that gave her the inspiration to become a dental assistant. She pursued her passion, went to Foothill College Dental Assisting program and graduated in 1980. Lauren has never regretted her choice. She loves what she does and knows she is making a difference.

With over 35 years of dental experience as a registered dental assistant and 23 years being an office manager, the one thing she strives to have happen with all our patients is that they always come first.

Lauren has three wonderful daughters all grown up and experiencing life. She also has the privilege of being a “Nana” to 4 amazing grandchildren and more on the way.

Leslee Hoppe

Registered Dental Hygienist

Leslee has been in the dental field for 20 years and has worked as a hygienist for 15 years and loves it! She enjoys meeting new people and seeing familiar faces when not staring at teeth. Leslee likes to spend time with her husband kids, dog and is a crazy sports fan – go Warriors and Giants!! She also enjoys camping, boating, skiing, running and just being active.

June Sila

Registered Dental Assistant

June Sila is a Registered Dental Assistant with 20 plus years’ experience. June enjoys both the technical requirements of her position and the interpersonal interactions with patients. She strives to make each patient comfortable during their procedures. In her own words, “When the patient leaves the office with a smile that is my reward”. In her free time, June enjoys being creative, volunteering, playing tennis and cooking for family and friends.


Registered Dental Hygienist

Cassondra was born and raised in the lovely Bay Area of California. She has always had a strong passion for helping others as well as pursuing higher education, and realized how to fulfill both dreams by becoming a registered dental hygienist with a BS degree. She attended Foothill College, she was a proud student of Dr. Walker achieving a well-regarded Bachelor of Science degree in the field of dental hygiene upon completion of the 2yr program.

She is also a proud stepmother with 3 dogs and 2 cats who thoroughly enjoys family time and any activity outdoors.


Registered Dental Assistant

Melissa graduated from the dental assisting program at Foothill College in June 2020. She started interning at Dr. Walkers office and now a permanent employee. When younger, visiting the dentist always intrigued her with their passion and caring attitude to helping people. Melissa loves spending time with her family, 4 younger brothers’ ages 5-18 years old and the family dog. She enjoys being out in nature. If you have a good hike you like, let her know.