Dr. ChowDr. Christopher Chow
Dr. Christopher Chow was born and raised here in Honolulu, an alumnus of Punahou School. He left Hawaii to attend the University of Southern California, where he received his bachelor’s degree in both Biology and Dental Hygiene. He went on to pursue his Doctor of Dental Surgery at Indiana University. He has been practicing dentistry since 2005 and loves creating relationships with his patients. Dr. Chow is a member of the Hawaii Dental Association and Pacific Dental. When he is not in the office, he is spending time with his wife, Leina, and their two daughters, Kailee and Aubrey. You can also find him surfing and diving around Oahu.


Associations and Memberships:

American Dental Association
Hawaii Dental Association
Pacific Dental Services
Invisalign Provider
Lanap Laser Therapy Center


Dr. NagataDr. Dennis Nagata

Dr. Dennis Nagata was born and raised in Honolulu. He is a graduate of Iolani School. He was inspired to pursue dentistry by his mother Nancy who worked with the military at Schofield Barracks Dental clinic as a dental assistant. Dr. Nagata received his Doctor of Dental Surgery degree from the University of Southern California in 1979.

Dr. Nagata founded the Hawaii Center for Cosmetic and Laser dentistry in 1979. Dr. Nagata was a former clinical instructor at the Las Vegas Institute for Advanced Dental Studies where he helped dentists learn advanced and specialized techniques to help patients in need of complex treatment. He continues to lecture and present cases and participates in numerous post graduate programs.

Dr. Nagata is a general & cosmetic dentist who has over 40 years of experience in his field. He is currently serving patients’ dental needs at Landmark Dental Group in Honolulu, Hawaii. Established in 1980, Landmark Dental Group offers numerous dental services, including biocompatible dentistry, general dentistry, cosmetic dentistry, dental implants, TMJ treatment, and sleep apnea. “Our dental team is committed to excellent oral health for our patients. We offer comprehensive dental care and brilliant cosmetic dentistry to Honolulu, Hawaii and the surrounding areas. Our facility is large, with 12 operatory rooms and a big waiting area, kept clean and fresh for your convenience and comfort. We do all that we can to keep you comfortable and relaxed at every stage of care, and we strive to engage with our patients on a personal level to meet your oral health needs” as stated on the dental practice’s website.

Dr. Nagata specializes in Comprehensive Cosmetic Dentistry, TMJ problems, Implantology and Sleep Dentistry. Dr. Nagata also is a Premier Provider for Invisalign Clear Aligners. Dr. Nagata has served as a Clinical Instructor at the Las Vegas Institute for Advanced Dental Studies in Las Vegas, Nevada.

Dr. Nagata’s expertise and dedication combine artistry and technology to give his patients a Smile that exudes Confidence , Beauty and Well-Being. Dr. Nagata is also deeply involved with Sleep Dentistry and is trained and certified to treat Obstructive Sleep Apnea using Oral Appliances and Nightlase Snoring Reduction therapy.

In 2018 Dr. Nagata was honored to be inducted into the Pierre Fauchard Academy. The Pierre Fauchard Academy recognizes dentists who uphold the highest standards of professionalism in dentistry and provide excellence in all phases of dentistry for patients and continue to mentor other dentists to strive for excellence in the dental profession.

Dr. Nagata is a member of the Academy of General Dentistry American Dental Association® (Life Member), Hawaii Dental Association, American Academy for Oral-Systemic Health, International Association of Orthodontics, American Academy of Cosmetic Orthodontics, Hawaii Board of Dentistry, The Commission of Dental Competency Assessment, International Academy of Oral Medicine and Toxicology, Academy of Laser Dentistry, and the American Academy of Dental Sleep Medicine.

Dentistry, also known as Dental and Oral Medicine, is a branch of medicine that consists of the study, diagnosis, prevention, and treatment of diseases, disorders, and conditions of the oral cavity. As a general & cosmetic dentist, Dr. Nagata has the skills needed to complete an array of procedures that are simple or complex in nature.

Learn More about Dr. Dennis T. Nagata

Association and Memberships:

  • Hawaii Board of Dentistry
  • The Commission of Dental Competency Assessment
  • International Academy of Oral Medicine and Toxicology
  • American Academy of Dental Sleep Medicine
  • Pierre Fauchard Academy
American Dental Association
Hawaii Dental Association
The American Academy for Oral Systemic Health
Academy of Laser Dentistry
invisalign premier preferred provider
International Association for Orthodontics
American Academy of Cosmetic Orthodontics
The Commission on Dental Competency Assessments
American Academy of Dental Sleep Medicine
Academy of General Dentistry



Dr. MorikawaDr. Gary H. Morikawa
Dr. Gary Morikawa is a local and was born and raised in Honolulu, Hawaii. He earned his undergraduate degree from the University of Oregon and the University of Hawaii before attending the University of Missouri School of Dentistry. Here, he completed his doctorate in dental science in 1987. His goal as a dentist today is to provide the best possible care for patients and share his knowledge of dentistry.

In order to provide better, improved services, Dr. Morikawa continues his education with the following study groups:

    • Hawaii Dental Forum


    • The local chapter of the Seattle Study Club


    • Hawaii Terry Tanaka Study Club


    Dental Associates of Hawaii Study Group

Dr. Morikawa has also participated in continuing training with the Kois Center in Seattle Washington. As a dental professional, he is a member of the following organizations:

  • American Dental Association®
  • Hawaii Dental Association
  • Honolulu County Dental Association
  • Academy of General Dentistry

When at home, Dr. Morikawa spends time with his wife, Dawn; his daughter, Alexis, and their dog, Daisy.

Associations and Memberships:

American Dental Association
Hawaii Dental Association
Academy of General Dentistry


Dr. Kentaro Matsumoto

Dr. Kentaro Matsumoto was born and raised in Tokyo, Japan, and graduated in 2002 from Showa Dental School in Tokyo. After working as a dentist in Japan, he moved to Hawaii to achieve his goals of obtaining a Masters of Business Administration (MBA) and an American DDS degree. In 2009, he graduated from Hawaii Pacific University with a MBA. In 2015, he graduated from theUniversity of Southern California where he completed the Advanced Standing Program for International Dentists (DDS). Dr. Matsumoto is one of the few dentists in Hawaii who has obtained the dental license in both Japan and the US.


Dr. OliverDr. Kathleen Oliver
Dr. Kathleen Oliver was born and raised in Montreal, Canada, where she grew up speaking both English and French. She completed her dental education at the University of Quebec, where she received her Doctor of Dental Medicine degree. Her kind hearted approach to patient care and skills in practice led her mentors to offer her a teaching position after completing her postdoctoral program in advanced education in general dentistry here in Hawaii. She continued to work in community health in Kalihi for three years prior to joining Landmark Dental Group.

Dr. Oliver is a firm believer in continuing education to stay well informed about advances in dental techniques, which is essential for providing her clients with the highest quality of dentistry possible. Dr. Oliver is a member of the Hawaii Dental Association and American Dental Association®. Her main priorities are creating lasting relationships with her patients and helping them achieve optimal oral health and smile esthetics.

After work, she is most likely to be seen outdoors hiking or surfing the south shore breaks.

Associations and Memberships:

American Dental Association
Hawaii Dental Association


Meet Our Team

Our excellent dental team at Landmark Dental Group is family-oriented and happy to do all we can to make our patients feel comfortable and safe. We are a large practice that is able to help a great volume of patients, but we strive to engage with each at a close and personal level. Our combined staff is able to speak many of the local languages of our diverse island, including English, Japanese, Tagalog and Laotian. Read on to learn more about our team members. If you would like to learn more about our practice in Honolulu, Hawaii and the dental services we provide, please give us a call at 808-946-6326 today.

Team Picture