Meet Our Doctors & Team

Take a couple of minutes to meet and get acquainted with the caring and compassionate team at Cypress Grove Dental Group in Garden Grove by reading each of their biographies. You’ll learn a little bit about our doctors and team members, including their education, work experience, and professional associations. Then you’ll see why we are such a good fit for your needs. We truly look forward to meeting you and having the opportunity to serve you, as well as your family!

Dan J. Spears, DDS / General Dentist

CA Dental License #: 37165

Dan J. Spears, DDS

Dr. Dan Spears is just one of the friendly and caring dentists here at Cypress Grove Dental Group. He is passionate about dentistry and the well-being of our patients, and he always listens to their wants and needs and thoroughly explains their treatment options. With a dedication to this process, he believes that once patients understand what is going on (and why), they can make better treatment decisions for themselves. That is key to superior dental care!

Dr. Spears grew up in Anaheim and graduated from U.C. Irvine in 1979 with a B.S. in Biology. He worked for a pharmaceutical company in Irvine for a few years before deciding to further his education. Wanting to spend time away from Southern California, he chose U.C. San Francisco, a great school in a great place. San Francisco was especially amazing back then—it was beautiful and before a lot of the commercial interests moved in. There were a lot of independent coffee houses and eateries… and no Starbucks!

Initially, Dr. Spears had planned to get a Master of Public Health degree and then work in the public health sector. However, while at UCSF, he was fortunate enough to do an externship at Mt. Zion Hospital and became interested in hospital dentistry. So, after dental school, he chose to go to a general practice residency. Again desiring to see a new part of the country, he was accepted to the GPR program at the Veterans Administration Hospital in Washington, D.C. He recounts that it was a great experience, where he learned a considerable amount in the areas of restorative, prosthodontic, oral surgery, and periodontal surgery. Additionally, D.C. was an interesting and fun place to live, and working with veterans was great. They were from all levels of the services and from all walks of life, and they had wonderful stories. Dr. Spears enjoyed being able to contribute to their health needs. Later, during his second year, he worked a rotation in Pediatric Dentistry (even though it was a V.A. hospital). He worked with the Pediatric Dentistry residents at the nearby Children’s National Hospital (which was a great addition to the clinical education at the V.A.)

Next, Dr. Spears had a chance to do a fellowship in hospital dentistry at Danbury Hospital, a private hospital in Connecticut that was associated with Yale University. There, he fell in love with beautiful New England, and it was also another great experience clinically. Much of the workload involved doing O.R. cases with mentally handicapped individuals who could not be treated in a conventional dental office setting. Also, he has the unique experience of his third daughter being born in the hospital while he was on staff there!

When Dr. Spears and his family moved back to California, he decided to go into private practice. His prior training and experience led him to seek a group practice, which has a lot of the same advantages as working in a hospital clinic. These include allowing for more immediate sharing of clinical strengths, interests, experiences, and opinions. It also enhances peer consultation and the knowledge of each member of the group. Dr. Spears looks forward to showing you these advantages first-hand when you visit us at Cypress Grove Dental Group!

Gemma T. Hipolito, DDS / General Dentist

CA Dental License #: 45701

Gemma Hipolito, DDS

Dr. Hipolito has over 20 years of experience in General and Cosmetic Dentistry. She graduated from the University of California Irvine with a Bachelors’s Degree in Biology. She then entered the Arthur A. Dugoni School of Dentistry at the University of the Pacific in San Francisco and received her Doctorate of Dental Surgery (DDS).

Dr. Hipolito has extensive training in General and Cosmetic Dentistry. She is also a Lumineers and Invisalign provider. She is highly skilled and has substantial experience in treating patients of all ages and a wide range of complex dental conditions.

Her primary purpose is to provide the highest quality of comprehensive dental care possible to all her patients using the most advanced treatment and techniques possible. She is also an Invisalign® and Lumineers® provider.

She dedicates herself to treating all her patients like they’re her own family. Her compassionate, gentle, and caring approach to each patient together with her excellent and artistic skills as a dentist, makes each person feel at ease while being treated.

Dr. Hipolito is married and has a son. She enjoys cooking, reading, and spending time with family and friends.

Chad E. Hicks-Beach, DDS / General Dentist

CA Dental License #: 54261

Chad E. Hicks-Beach, DDS

Dr. Chad Hicks-Beach treats all his patients like they’re his own family. He is compassionate, gentle, patient, and strives to make everyone at ease in the dental chair. Being a California native, he graduated from UC San Diego with a Bachelors’ Degree (BS) in Biology and the University of the Pacific, Arthur A. Dugoni School of Dentistry with his Doctorate of Dental Surgery (DDS).

Dr. Hicks-Beach joined Cypress Grove Dental Group in 2008. Dr. Chad (as he prefers to be called) has extensive training in treating patients of all ages and a wide range of complex dental conditions. He is excellent with children! His treatment philosophy is anchored in patient-centered comprehensive dental care and prides himself in patient education.

When he is not busy making his patients smile, he enjoys exercising, gardening, and home improvement projects.

Dr. Chad is an active member of the American Dental Association (ADA), California Dental Association (CDA), and the Harbor Dental Society.

Gary C. Lyon, DDS / Orthodontist

CA Dental License #: 20902

Gary C. Lyon, DDS

Dr. Gary Lyon was born and raised in Southern California. He attended the University of California, Los Angeles (UCLA) for his undergraduate studies and then attended the University of California, San Francisco (UCSF) Medical Center for his Doctor of Dental Surgery (DDS) degree. During this time, he was the student in charge of the University of California Mobile Clinic traveling to Central California farming communities where he treated migrant farm laborers and their families.

As a dentist, he served two years of active duty in the U.S. Army Dental Corp at Ft. Lee, Virginia, then returned to UCLA for a two-year postdoctoral program in orthodontics where he graduated at the top of his class.

Dr. Lyon has been providing outstanding orthodontic care in the community for over 20 years. He has successfully treated well over 10,000 patients with a broad range in degrees of difficulty. He is an active member of the American Association of Orthodontists (AAO), American Dental Association (ADA), California Dental Association (CDA), Pacific Coast Society of Orthodontists (PCSO) and the Orange County Dental Society (OCDS).

He and his family enjoy boating, surfing and snowboarding. The newest addition to the family is Dr. Lyon’s rescue cat, Missy Maincoon Lyon.

Meet Our Team

Cypress Grove Dental Group is able to provide the highest quality care thanks to an incredible team of dedicated, friendly, and knowledgeable individuals. Whether it is our hygienists or assistants, office managers or administrators, each team member helps our practice run smoothly and works with a shared commitment to our patient’s oral health, comfort, and overall well-being. Take a few minutes to meet the team at Cypress Grove Dental Group.

Nelly – Office Coordinator

Nelly our office coordinator has been with us for over 10 years. She is very knowledgeable in insurance and treatment coordination and here to serve you.

She enjoys spending time with her family, especially attending her boys athletic events and cheering football and her childrens sports.


Cheryl – Receptionist

Cheryl has worked with Cypress Grove Dental Group for over 20 years. She loves our patients and always look forward to catching up with them in hearing about their families.

Cheryl is married and has 3 kids children. On her time off she spends time with her family grandson and her fur babies. She spends the summer in Parker on their boat and is an avid dirt bike rider.


Debbie – Registered Dental Assistant (RDA)

Debbie loves dentistry and has worked in the field for over 30 years. She has been with Cypress Grove Dental Group since 2005 and is very compassionate and caring to all of our patients.

She has two beautiful grown children and spends her time taking care of her mom when she isn`t taking care of our patients.


Maria – Office Manager

Maria our office manager came to our office right out of dental assisting school in 1989. She is multi-talented and when she is not running the front office she is helping out in the back, as she also has a license as a registered dental assistant (RDA). She is married and enjoys spending time with her children and grandchildren.

When she is not in the office she is traveling with her family or doing volunteer work at her Parish.


Bonnie – Registered Dental Hygienist (RDH)

Bonnie graduated from the Dental Hygiene program at Cerritos College in June of 1990 and began working at Cypress Grove Dental Group later that same year. She also has worked in the specialty field of periodontics, and gets a lot of satisfaction in seeing patients improve their oral health simply by cleaning and caring for them year after year.

Bonnie is married, has 4 grown kids and spends much of her free time volunteering at church and traveling.


Lisa – Receptionist Orthodontics Team

Lisa has accumulated a remarkable 25-year working relationship with Dr. Gary C. Lyon. Her role involves managing and organizing all aspects of orthodontic appointments and treatments. As a result of her expertise, clients can expect a seamless and efficient process when scheduling their orthodontic treatments.

Lisa enjoy spending time with her husband and two children and her two guinea pigs. She enjoys football when it is in season. When there is no football she enjoys playing Yahtzee and backgammon with her husband.