Dr. Kathy Maasoumi DDS is a Lake Forest based family dentist practice that treats patients of all ages.


We are committed to delivering the highest quality dental care and do so using state-of-the art dentist equipment. We are a cosmetic dentist that offers services like Invisalign®, Veneers, Dental Implants, Zoom!® Teeth Whitening and more. We also perform emergency dentist services that include root canals, crowns, sedation dentistry, and bridges. As a local dentist, we create lifelong relationships with our patients and their families and work to ensure that they receive treatments in a comfortable and relaxed environment. Dr. Maasoumi and our staff invite you to schedule an appointment by calling 949-716-7000 and experience why our patients think Dr. Kathy Maasoumi DDS is the best dentist in Lake Forest.


Meet our Team


Dr. Kathy Maasoumi

Dr. Kathy Maasoumi

Doctor of Dental Surgery

My passion is helping people and I love working with my hands. Making changes in people’s smile is phenomenal and it brings me such a good feeling to make a difference in people’s lives. As a female that enjoys both art and science, I was attracted to dentistry because it was a blend of both.

I graduated in 1994 from the USC School of Dentistry and I am a Trojan!

I am a General Dentist, and I have received additional training for Implant therapy. I am trained in specific procedures to develop a crown in a day where I can offer implants plus build a crown right here with my special equipment, and the patient leaves with the complete procedure completed in one office. Additionally, I am trained in orthodontics and progressive orthodontics. I do all of them in my office.

I am excited to meet you as a new patient, and we will be happy to give you a tour plus a free consultation for implants or braces.

About Our Office and Philosophy


We help our patients get a better understanding of the treatment they will be receiving. We have multimedia presentation that explains each of the procedures to the fullest detail. The use of digital x-rays have less radiation and offer a key advantage in convenience compared to traditional film. If at any time you move away, we can put your x-rays on a CD for easy transfer. Our diagnostic abilities, like detecting cavities, are greatly improved because we can digitally enhance and even enlarge the x-ray images on a computer right in front of your eyes!

You’re in good hands with the dental professionals here at the offices of Dr. Kathy Family Dentistry. We want all of our patients looking for premium dental care to be informed decision makers and fully understand each dental procedure along with any health risk they may face.

Dr. Kathy Maasoumi DDS,Inc. has practiced full service dentistry for over 15 years based on these three principles:

  • People’s health comes first
  • Providing dental health with state-of-the art technology improves my ability to serve
  • Staying current with new techniques means gentler and more effective treatments